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Instead of having a single inventor, the
Internet The Internet (or internet) is the Global network, global system of interconnected computer networks that uses the Internet protocol suite (TCP/IP) to communicate between networks and devices. It is a internetworking, network of networks ...
was developed by many people over many years. The following people are Internet pioneers who have been recognized for their contribution to its early and ongoing development. These contributions include theoretical foundations, building early networks, specifying protocols, and expansion beyond a research tool to wide deployment. This list includes people who were: * acknowledged by
Vint Cerf Vinton Gray Cerf (; born June 23, 1943) is an American Internet pioneer and is recognized as one of "the fathers of the Internet", sharing this title with TCP/IP co-developer Robert Kahn. He has received honorary degrees and awards that inclu ...
and
Bob Kahn Robert Elliot Kahn (born December 23, 1938) is an American electrical engineer who, along with Vint Cerf, first proposed the Transmission Control Protocol (TCP) and the Internet Protocol (IP), the fundamental communication protocols at the hea ...
in their seminal 1974 paper on
internetworking Internetworking is the practice of interconnecting multiple computer networks. Typically, this enables any pair of hosts in the connected networks to exchange messages irrespective of their hardware-level networking technology. The resulting sys ...
, "A Protocol for Packet Network Intercommunication";'''' or * received the IEEE Internet Award; or have been * inducted into the
Internet Hall of Fame The Internet Hall of Fame is an honorary lifetime achievement award administered by the Internet Society (ISOC) in recognition of individuals who have made significant contributions to the development and advancement of the Internet. Overview ...
; or are * included on the Stanford University "Birth of the Internet" plaque."Stanford University 'Birth of the Internet' Plaque"
web page, J. Noel Chiappa, Laboratory for Computer Science, MIT
Among the pioneers, along with Cerf and Kahn,
Bob Metcalfe Robert "Bob" Melancton Metcalfe (born April 7, 1946) is an American engineer and entrepreneur who contributed to the development of the internet in the 1970s. He co-invented Ethernet, co-founded 3Com, and formulated Metcalfe's law, which descr ...
,
Donald Davies Donald Watts Davies, (7 June 1924 – 28 May 2000) was a Welsh computer scientist and Internet pioneer who was employed at the UK National Physical Laboratory (NPL). During 1965-67 he invented modern data communications, including packet s ...
,
Louis Pouzin Louis Pouzin (born 20 April 1931) is a French computer scientist and Internet pioneer. He directed the development of the CYCLADES computer network in France the early 1970s, which implemented a novel design for packet communication. He was the ...
, Steve Crocker and Ray Tomlinson meet three out of the four criteria above; as well as
Jon Postel Jonathan Bruce Postel (; August 6, 1943 – October 16, 1998) was an American computer scientist who made many significant contributions to the development of the Internet, particularly with respect to Internet Standard, standards. He is known p ...
, considering the 2003 IEEE Internet award on which he is posthumously cited. Davies and Kahn are featured in the 1972 documentary film '' Computer Networks: The Heralds of Resource Sharing'' along with several early pioneers. Other Internet pioneers, who made notable contributions to the development of the Internet but do not meet any of the four criteria above, are listed in the final section of the article. The pioneers are listed in rough chronological order, reflecting the process through which the Internet developed.


Birth of the Internet plaque

A plaque commemorating the "Birth of the Internet" was dedicated at a conference on the history and future of the Internet on 28 July 2005 and is displayed at
Stanford University Leland Stanford Junior University, commonly referred to as Stanford University, is a Private university, private research university in Stanford, California, United States. It was founded in 1885 by railroad magnate Leland Stanford (the eighth ...
.


Background

The seminal paper on
internetworking Internetworking is the practice of interconnecting multiple computer networks. Typically, this enables any pair of hosts in the connected networks to exchange messages irrespective of their hardware-level networking technology. The resulting sys ...
, "A Protocol for Packet Network Intercommunication"'','' published by Vint Cerf, at
Stanford University Leland Stanford Junior University, commonly referred to as Stanford University, is a Private university, private research university in Stanford, California, United States. It was founded in 1885 by railroad magnate Leland Stanford (the eighth ...
, and Bob Kahn, at ARPA, in 1974, acknowledges a number of early members of the
International Network Working Group The International Network Working Group (INWG) was a group of prominent computer science researchers in the 1970s who studied and developed Standardization, standards and communication protocol, protocols for interconnection of computer networks. Se ...
(INWG): "The authors wish to thank a number of colleagues for helpful comments during early discussions of international network protocols, especially R. Metcalfe, R. Scantlebury, D. Walden, and H. Zimmerman; D. Davies and L. Pouzin who constructively commented on the fragmentation and accounting issues; and S. Crocker who commented on the creation and destruction of associations".'''' The first version of TCP, RFC 675, was written later that year by Cerf with Yogen Dalal and Carl Sunshine. The introduction states "The authors would like to acknowledge the contributions of R. Tomlinson ..., D. Belsnes, J. Burchfiel, M. Galland, R. Kahn, D. Lloyd, W. Plummer, and J. Postel all of whose good ideas and counsel have had a beneficial effect (we hope) on this protocol design. In the early phases of the design work, R. Metcalfe, A. McKenzie, H. Zimmerman, G. LeLann, and M. Elie were most helpful in explicating the various issues to be resolved." Subsequently, ARPA funded another working group to develop TCP for use for internetworking. Over two hundred Internet Experiment Notes (IEN) were produced, documenting the group's work. Only a few of the people who authored notes, or who participated in the work or whose work was referenced in the notes are named on the "Birth of the Internet" plaque. Robert Metclafe, Yogen Dalal and John Shoch contributed to discussions leading up to the splitting of TCP, which influenced the work of
Jon Postel Jonathan Bruce Postel (; August 6, 1943 – October 16, 1998) was an American computer scientist who made many significant contributions to the development of the Internet, particularly with respect to Internet Standard, standards. He is known p ...
at the Information Sciences Institute at the
University of Southern California The University of Southern California (USC, SC, or Southern Cal) is a Private university, private research university in Los Angeles, California, United States. Founded in 1880 by Robert M. Widney, it is the oldest private research university in ...
(USC-ISI) published as the second Internet Experiment Note (IEN2). TCP version 2, published in 1977 (IEN5), authored by Cerf, states that "Although the list of participants in the TCP work is very long (see ... the final TCP project report), special acknowledgements are due to R. Kahn, R. Tomlinson, T. Dalal, R. Karp and C. Sunshine for their active participation In the design of TCP." At that time, the "Final Report of the Internetwork TCP Project" was to be written by Cerf, who led the work at Stanford University and had moved to ARPA to manage the program with Kahn, Peter T. Kirstein, who led the work at
University College London University College London (Trade name, branded as UCL) is a Public university, public research university in London, England. It is a Member institutions of the University of London, member institution of the Federal university, federal Uni ...
(UCL), and Paal Spilling, who led the work at the Norwegian Defence Research Establishment (NDRE), along with three of their team members, Stephen Edge and Andrew Hinchley at UCL, who authored the first IEN (along with their colleague Chris Bennett), and Richard Karp at Stanford. The original title of the report was carried over into version 3 (IEN21) and into the list of references in version 4 (IEN55), both published in 1978; the title "Final Report of the Stanford University TCP Project" was adopted in the
preface __NOTOC__ A preface () or proem () is an introduction to a book or other literature, literary work written by the work's author. An introductory essay written by a different person is a ''foreword'' and precedes an author's preface. The preface o ...
of version 4. Cerf and Postel edited version 3 and Postel was the editor of version 4, in which TCP and IP were split into separate protocols. The preface of version 3 states that "The evolution from TCP version 2 to version 3 was influenced by many people, but special mention should be made of the work at MIT's Laboratory for Computer Science on the Data Stream Protocol (DSP) by Dave Clark and Dave Reed. Many of the specific changes introduced in version 3 were first described by Ray Tomlinson of BBN." It goes on to add that "This edition of the specification benefited from the comments of the following reviewers: Michael Padlipsky, Carl Sunshine, John Day, Gary Grossman, and Ray Tomlinson". Version 4, edited by Postel, adds "This revised edition of the version 4 specification was influenced by the comments of the following: Vint Cerf, Dick Watson, Carl Sunshine, Danny Cohen, Dave Clark, John Day, Gary Grossman, Jim Mathis, Bill Plummer, Jack Haverty, and the whole TCP Working Group." The bibliography of the various TCP versions references papers published by many researchers active in the field at the time. The "Final Report" of the "TCP Project", which was orchestrated and funded by ARPA, was published by Cerf in 1980 (IEN151); a few of the people mentioned in the report are named on the plaque. Cerf has discussed the role of some in his oral history.


Inscription

The text printed and embossed in black into the brushed bronze surface of the Stanford plaque reads:
BIRTH OF THE INTERNET THE ARCHITECTURE OF THE INTERNET AND THE DESIGN OF THE CORE NETWORKING PROTOCOL TCP (WHICH LATER BECAME TCP/IP) WERE CONCEIVED BY VINTON G. CERF AND ROBERT E. KAHN DURING 1973 WHILE CERF WAS AT STANFORD'S DIGITAL SYSTEMS LABORATORY AND KAHN WAS AT ARPA (LATER DARPA). IN THE SUMMER OF 1976, CERF LEFT STANFORD TO MANAGE THE PROGRAM WITH KAHN AT ARPA. THEIR WORK BECAME KNOWN IN SEPTEMBER 1973 AT A NETWORKING CONFERENCE IN ENGLAND. CERF AND KAHN'S SEMINAL PAPER WAS PUBLISHED IN MAY 1974. CERF, YOGEN K. DALAL, AND CARL SUNSHINE WROTE THE FIRST FULL TCP SPECIFICATION IN DECEMBER 1974. WITH THE SUPPORT OF DARPA, EARLY IMPLEMENTATIONS OF TCP (AND IP LATER) WERE TESTED BY BOLT BERANEK AND NEWMAN (BBN), STANFORD, AND UNIVERSITY COLLEGE LONDON DURING 1975. BBN BUILT THE FIRST INTERNET GATEWAY, NOW KNOWN AS A ROUTER, TO LINK NETWORKS TOGETHER. IN SUBSEQUENT YEARS, RESEARCHERS AT MIT AND USC-ISI, AMONG MANY OTHERS, PLAYED KEY ROLES IN THE DEVELOPMENT OF THE SET OF INTERNET PROTOCOLS. KEY STANFORD RESEARCH ASSOCIATES AND FOREIGN VISITORS
VINTON CERF Vinton Gray Cerf (; born June 23, 1943) is an American Internet pioneer and is recognized as one of "the fathers of the Internet", sharing this title with TCP/IP co-developer Robert Kahn. He has received honorary degrees and awards that inclu ...
DAG BELSNES JAMES MATHIS RONALD CRANE JUNIOR
BOB METCALFE Robert "Bob" Melancton Metcalfe (born April 7, 1946) is an American engineer and entrepreneur who contributed to the development of the internet in the 1970s. He co-invented Ethernet, co-founded 3Com, and formulated Metcalfe's law, which descr ...
YOGEN DALAL DARRYL RUBIN JUDITH ESTRIN JOHN SHOCH RICHARD KARP CARL SUNSHINE GERARD LE LANN KUNINOBU TANNO DARPA ROBERT KAHN COLLABORATING GROUPS BOLT BERANEK AND NEWMAN WILLIAM PLUMMER • GINNY STRAZISAR • RAY TOMLINSON MIT NOEL CHIAPPA • DAVID CLARK • STEPHEN KENTDAVID P. REED NDRE YNGVAR LUNDHPAAL SPILLING UNIVERSITY COLLEGE LONDON FRANK DEIGNAN • MARTINE GALLAND • PETER HIGGINSON ANDREW HINCHLEY • PETER KIRSTEINADRIAN STOKES USC-ISI ROBERT BRADENDANNY COHEN • DANIEL LYNCH •
JON POSTEL Jonathan Bruce Postel (; August 6, 1943 – October 16, 1998) was an American computer scientist who made many significant contributions to the development of the Internet, particularly with respect to Internet Standard, standards. He is known p ...
ULTIMATELY, THOUSANDS IF NOT TENS TO HUNDREDS OF THOUSANDS HAVE CONTRIBUTED THEIR EXPERTISE TO THE EVOLUTION OF THE INTERNET. DEDICATED 28 July 2005


J. C. R. Licklider

Joseph Carl Robnett Licklider (1915–1990) was a faculty member of
Massachusetts Institute of Technology The Massachusetts Institute of Technology (MIT) is a Private university, private research university in Cambridge, Massachusetts, United States. Established in 1861, MIT has played a significant role in the development of many areas of moder ...
(MIT), and researcher at
Bolt, Beranek and Newman Raytheon BBN (originally Bolt, Beranek and Newman, Inc.) is an American research and development company based in Cambridge, Massachusetts. In 1966, the Franklin Institute awarded the firm the Frank P. Brown Medal, in 1999 BBN received the ...
. He developed the idea of a universal
computer network A computer network is a collection of communicating computers and other devices, such as printers and smart phones. In order to communicate, the computers and devices must be connected by wired media like copper cables, optical fibers, or b ...
at the
Information Processing Techniques Office The Information Processing Techniques Office (IPTO), originally "Command and Control Research",Lyon, Matthew; Hafner, Katie (1999-08-19). ''Where Wizards Stay Up Late: The Origins Of The Internet'' (p. 39). Simon & Schuster. Kindle Edition. was par ...
(IPTO) of the
United States Department of Defense The United States Department of Defense (DoD, USDOD, or DOD) is an United States federal executive departments, executive department of the federal government of the United States, U.S. federal government charged with coordinating and superv ...
Advanced Research Projects Agency (ARPA). He headed the IPTO from 1962 to 1963, and again from 1974 to 1975. His 1960 paper " Man-Computer Symbiosis" envisions that mutually-interdependent, "living together", tightly coupled human brains and computing machines would prove to complement each other's strengths. In 2013, Licklider was inducted into the
Internet Hall of Fame The Internet Hall of Fame is an honorary lifetime achievement award administered by the Internet Society (ISOC) in recognition of individuals who have made significant contributions to the development and advancement of the Internet. Overview ...
"pioneers" award by the
Internet Society The Internet Society (ISOC) is an American non-profit advocacy organization founded in 1992 with local chapters around the world. It has offices in Reston, Virginia, United States, and Geneva, Switzerland. Organization The Internet Society ...
.


Paul Baran

Paul Baran (1926–2011) developed the field of redundant distributed networks while conducting research at
RAND Corporation The RAND Corporation, doing business as RAND, is an American nonprofit global policy think tank, research institute, and public sector consulting firm. RAND engages in research and development (R&D) in several fields and industries. Since the ...
starting in 1960 when Baran began investigating the development of large-scale survivable communication networks. This led to a series of papers titled "On Distributed Communications" that in 1964 described a detailed architecture for ''distributed adaptive message block switching''. The proposal was composed of three key ideas: use of a
decentralized Decentralization or decentralisation is the process by which the activities of an organization, particularly those related to planning and decision-making, are distributed or delegated away from a central, authoritative location or group and gi ...
network with multiple paths between any two points; dividing user messages into message blocks; and delivery of these messages by store and forward switching. Baran's network design was never built; it was intended for voice communication using low-cost electronics and did not feature software switches. Baran provided input to the ARPANET project on distributed communications and dynamic routing. Baran received the inaugural SIGCOMM Award in 1989, the inaugural IEEE Internet Award in 2000 and the inaugural
Internet Hall of Fame The Internet Hall of Fame is an honorary lifetime achievement award administered by the Internet Society (ISOC) in recognition of individuals who have made significant contributions to the development and advancement of the Internet. Overview ...
"pioneers" award from the
Internet Society The Internet Society (ISOC) is an American non-profit advocacy organization founded in 1992 with local chapters around the world. It has offices in Reston, Virginia, United States, and Geneva, Switzerland. Organization The Internet Society ...
in 2012.2012 Inductees
,
Internet Hall of Fame The Internet Hall of Fame is an honorary lifetime achievement award administered by the Internet Society (ISOC) in recognition of individuals who have made significant contributions to the development and advancement of the Internet. Overview ...
website. Last accessed 24 April 2012


Donald Davies

Donald Davies (1924–2000) independently invented and named the concept of
packet switching In telecommunications, packet switching is a method of grouping Data (computing), data into short messages in fixed format, i.e. ''network packet, packets,'' that are transmitted over a digital Telecommunications network, network. Packets consi ...
for
data communication Data communication, including data transmission and data reception, is the transfer of data, transmitted and received over a point-to-point or point-to-multipoint communication channel. Examples of such channels are copper wires, optic ...
s in 1965 at the United Kingdom's National Physical Laboratory (NPL). In the same year, he proposed a national commercial data network in the UK employing high-speed switching nodes. He refined his ideas in a paper written in 1966, which included the first description of an ''interface computer'' to act as a router. Later in 1966, he established a team which produced a design for a local-area network to serve the needs of NPL and prove the feasibility of packet switching while developing a more formal design proposal for a national network based on a high-level network connected to local networks. Davies built the local-area
NPL network The NPL network, or NPL Data Communications Network, was a local area computer network operated by the National Physical Laboratory (United Kingdom), National Physical Laboratory (NPL) in London that pioneered the concept of packet switching. ...
, the first implementation of packet switching in early 1969 and the first to use high-speed links. His work influenced the ARPANET and research in Europe and Japan. He carried out
simulation A simulation is an imitative representation of a process or system that could exist in the real world. In this broad sense, simulation can often be used interchangeably with model. Sometimes a clear distinction between the two terms is made, in ...
work on
datagram A datagram is a basic transfer unit associated with a packet-switched network. Datagrams are typically structured in header and payload sections. Datagrams provide a connectionless communication service across a packet-switched network. The de ...
networks on a scale to provide data communication to much of the United Kingdom and designed an adaptive method of
congestion control Network congestion in data networking and queueing theory is the reduced quality of service that occurs when a network node or link is carrying more data than it can handle. Typical effects include queueing delay, packet loss or the blocking of ...
, which he called ''isarithmic''. "As well as the packet switched network actually built at NPL for communication between their local computing facilities, some simulation experiments have been performed on larger networks. A summary of this work is reported in 9 The work was carried out to investigate networks of a size capable of providing data communications facilities to most of the U.K. ... Experiments were then carried out using a method of flow control devised by Davies 0called 'isarithmic' flow control. ... The simulation work carried out at NPL has, in many respects, been more realistic than most of the ARPA network theoretical studies." In the 1970s, Davies worked on
internetworking Internetworking is the practice of interconnecting multiple computer networks. Typically, this enables any pair of hosts in the connected networks to exchange messages irrespective of their hardware-level networking technology. The resulting sys ...
and
secure communication Secure communication is when two entities are communicating and do not want a third party to listen in. For this to be the case, the entities need to communicate in a way that is unsusceptible to eavesdropping or interception. Secure communication ...
. He was acknowledged by Vint Cerf and Bob Kahn in their seminal 1974 paper on internetworking, ''A Protocol for Packet Network Intercommunication.'' Davies received the inaugural IEEE Internet Award in 2000 and the inaugural
Internet Hall of Fame The Internet Hall of Fame is an honorary lifetime achievement award administered by the Internet Society (ISOC) in recognition of individuals who have made significant contributions to the development and advancement of the Internet. Overview ...
"pioneers" award from the
Internet Society The Internet Society (ISOC) is an American non-profit advocacy organization founded in 1992 with local chapters around the world. It has offices in Reston, Virginia, United States, and Geneva, Switzerland. Organization The Internet Society ...
in 2012.


Roger Scantlebury

Roger Scantlebury (born 1936) led the pioneering work to implement packet switching and associated
communication protocol A communication protocol is a system of rules that allows two or more entities of a communications system to transmit information via any variation of a physical quantity. The protocol defines the rules, syntax, semantics (computer science), sem ...
s at the NPL in the late 1960s. Scantlebury and his colleague Keith Bartlett were the first to describe the term ''protocol'' in a modern data-communications context in an April 1967 memorandum entitled ''A Protocol for Use in the NPL Data Communications Network''. He proposed the use of packet switching in the ARPANET at the inaugural
Symposium on Operating Systems Principles In Ancient Greece, the symposium (, ''sympósion'', from συμπίνειν, ''sympínein'', 'to drink together') was the part of a banquet that took place after the meal, when drinking for pleasure was accompanied by music, dancing, recitals, o ...
in October 1967 and convinced Larry Roberts the economics were favorable to message switching. During the 1970s, he was a major figure in the
International Network Working Group The International Network Working Group (INWG) was a group of prominent computer science researchers in the 1970s who studied and developed Standardization, standards and communication protocol, protocols for interconnection of computer networks. Se ...
(INWG) through which he was an early contributor to concepts used in the Transmission Control Program, which became part of the
Internet protocol suite The Internet protocol suite, commonly known as TCP/IP, is a framework for organizing the communication protocols used in the Internet and similar computer networks according to functional criteria. The foundational protocols in the suite are ...
.'''' He was acknowledged by Cerf and Kahn in their seminal 1974 paper on internetworking''.''


Bob Taylor

Robert W. Taylor (1932–2017) was director of ARPA's
Information Processing Techniques Office The Information Processing Techniques Office (IPTO), originally "Command and Control Research",Lyon, Matthew; Hafner, Katie (1999-08-19). ''Where Wizards Stay Up Late: The Origins Of The Internet'' (p. 39). Simon & Schuster. Kindle Edition. was par ...
(IPTO) from 1966 through 1969, where he convinced ARPA to fund a computer network. The 1968 paper, "The Computer as a Communication Device", that he wrote together with J.C.R. Licklider starts out: "In a few years, men will be able to communicate more effectively through a machine than face to face." And while their vision would take more than "a few years", the paper lays out the future of what the Internet would eventually become. From 1970 to 1983, he managed the Computer Science Laboratory of the
Xerox Palo Alto Research Center Xerox Holdings Corporation (, ) is an American corporation that sells print and electronic document, digital document products and services in more than 160 countries. Xerox was the pioneer of the photocopier market, beginning with the introduc ...
(PARC), where technologies such as
Ethernet Ethernet ( ) is a family of wired computer networking technologies commonly used in local area networks (LAN), metropolitan area networks (MAN) and wide area networks (WAN). It was commercially introduced in 1980 and first standardized in 198 ...
and the
Xerox Alto The Xerox Alto is a computer system developed at Xerox PARC (Palo Alto Research Center) in the 1970s. It is considered one of the first workstations or personal computers, and its development pioneered many aspects of modern computing. It featu ...
were developed. He was the founder and manager of
Digital Equipment Corporation Digital Equipment Corporation (DEC ), using the trademark Digital, was a major American company in the computer industry from the 1960s to the 1990s. The company was co-founded by Ken Olsen and Harlan Anderson in 1957. Olsen was president until ...
's Systems Research Center until 1996.


Larry Roberts

Lawrence G. "Larry" Roberts (1937–2018) was an American
computer scientist A computer scientist is a scientist who specializes in the academic study of computer science. Computer scientists typically work on the theoretical side of computation. Although computer scientists can also focus their work and research on ...
. After earning his
PhD A Doctor of Philosophy (PhD, DPhil; or ) is a terminal degree that usually denotes the highest level of academic achievement in a given discipline and is awarded following a course of graduate study and original research. The name of the deg ...
in
electrical engineering Electrical engineering is an engineering discipline concerned with the study, design, and application of equipment, devices, and systems that use electricity, electronics, and electromagnetism. It emerged as an identifiable occupation in the l ...
from
MIT The Massachusetts Institute of Technology (MIT) is a private research university in Cambridge, Massachusetts, United States. Established in 1861, MIT has played a significant role in the development of many areas of modern technology and sc ...
in 1963, Roberts continued to work at MIT's
Lincoln Laboratory The MIT Lincoln Laboratory, located in Lexington, Massachusetts, is a United States Department of Defense federally funded research and development center chartered to apply advanced technology to problems of national security. Research and dev ...
where in 1965 he connected Lincoln Lab's TX-2 computer to the SDC Q-32 computer in
Santa Monica Santa Monica (; Spanish language, Spanish: ''Santa Mónica'') is a city in Los Angeles County, California, Los Angeles County, situated along Santa Monica Bay on California's South Coast (California), South Coast. Santa Monica's 2020 United Sta ...
. In 1967, he became a program manager in the ARPA
Information Processing Techniques Office The Information Processing Techniques Office (IPTO), originally "Command and Control Research",Lyon, Matthew; Hafner, Katie (1999-08-19). ''Where Wizards Stay Up Late: The Origins Of The Internet'' (p. 39). Simon & Schuster. Kindle Edition. was par ...
(IPTO), where he managed the development of the
ARPANET The Advanced Research Projects Agency Network (ARPANET) was the first wide-area packet-switched network with distributed control and one of the first computer networks to implement the TCP/IP protocol suite. Both technologies became the tec ...
, the first wide area
packet switching In telecommunications, packet switching is a method of grouping Data (computing), data into short messages in fixed format, i.e. ''network packet, packets,'' that are transmitted over a digital Telecommunications network, network. Packets consi ...
network. Roberts applied Donald Davies' concepts of packet switching in the ARPANET, and sought input from Paul Baran and other researchers on network design. After Robert Taylor left ARPA in 1969, Roberts became director of the IPTO. In 1973, he left ARPA to commercialize the nascent technology in the form of
Telenet Telenet was an American commercial packet-switched network which went into service in 1975. It was the first FCC-licensed public data network in the United States. Various commercial and government interests paid monthly fees for dedicated lin ...
, which became one of the first
public data network A public data network (PDN) is a network established and operated by a telecommunications administration, or a recognized private operating agency, for the specific purpose of providing data transmission services for the public. The first public ...
s in the world, and served as its
CEO A chief executive officer (CEO), also known as a chief executive or managing director, is the top-ranking corporate officer charged with the management of an organization, usually a company or a nonprofit organization. CEOs find roles in variou ...
from 1973 to 1980. In 2012, Roberts was inducted into the
Internet Hall of Fame The Internet Hall of Fame is an honorary lifetime achievement award administered by the Internet Society (ISOC) in recognition of individuals who have made significant contributions to the development and advancement of the Internet. Overview ...
by the
Internet Society The Internet Society (ISOC) is an American non-profit advocacy organization founded in 1992 with local chapters around the world. It has offices in Reston, Virginia, United States, and Geneva, Switzerland. Organization The Internet Society ...
.


Leonard Kleinrock

Leonard Kleinrock (born 1934) became involved in the ARPANET project in early 1967. He had studied the optimization of message delays in communication networks using
queueing theory Queueing theory is the mathematical study of waiting lines, or queues. A queueing model is constructed so that queue lengths and waiting time can be predicted. Queueing theory is generally considered a branch of operations research because th ...
in his Ph.D. thesis, ''Message Delay in Communication Nets with Storage,'' at MIT in 1962. "Many of the theoretical studies of the performance and design of the ARPA Network were developments of earlier work by Kleinrock ... Although these works concerned message switching networks, they were the basis for a lot of the ARPA network investigations ... The intention of the work of Kleinrock n 1961was to analyse the performance of store and forward networks, using as the primary performance measure the average message delay. ... Kleinrock n 1970extended the theoretical approaches of is 1961 workto the early ARPA network." After this, he moved to
UCLA The University of California, Los Angeles (UCLA) is a public land-grant research university in Los Angeles, California, United States. Its academic roots were established in 1881 as a normal school then known as the southern branch of the C ...
. In 1969, under his supervision, a team at UCLA connected a computer to an
Interface Message Processor The Interface Message Processor (IMP) was the packet switching node used to interconnect participant networks to the ARPANET from the late 1960s to 1989. It was the first generation of gateways, which are known today as routers. An IMP was a r ...
(IMP), becoming the first node on the ARPANET. Building on his earlier work on queueing theory, during the 1970s, Kleinrock carried out theoretical work to measure and mathematically model the performance of the ARPANET, work which underpinned the development of the network and the Transmission Control Program. His theoretical work on hierarchical routing in the late 1970s with student Farouk Kamoun remains critical to the operation of the Internet today. In 2012, Kleinrock was inducted into the
Internet Hall of Fame The Internet Hall of Fame is an honorary lifetime achievement award administered by the Internet Society (ISOC) in recognition of individuals who have made significant contributions to the development and advancement of the Internet. Overview ...
by the
Internet Society The Internet Society (ISOC) is an American non-profit advocacy organization founded in 1992 with local chapters around the world. It has offices in Reston, Virginia, United States, and Geneva, Switzerland. Organization The Internet Society ...
.


Frank Heart

Frank Heart (1929–2018) worked for
Bolt, Beranek and Newman Raytheon BBN (originally Bolt, Beranek and Newman, Inc.) is an American research and development company based in Cambridge, Massachusetts. In 1966, the Franklin Institute awarded the firm the Frank P. Brown Medal, in 1999 BBN received the ...
(BBN) from 1966 to 1994, during which time he managed the team that designed and implemented the
Interface Message Processor The Interface Message Processor (IMP) was the packet switching node used to interconnect participant networks to the ARPANET from the late 1960s to 1989. It was the first generation of gateways, which are known today as routers. An IMP was a r ...
s (IMPs), the
routing Routing is the process of selecting a path for traffic in a Network theory, network or between or across multiple networks. Broadly, routing is performed in many types of networks, including circuit-switched networks, such as the public switched ...
computers for the
ARPANET The Advanced Research Projects Agency Network (ARPANET) was the first wide-area packet-switched network with distributed control and one of the first computer networks to implement the TCP/IP protocol suite. Both technologies became the tec ...
.


Bob Kahn

Robert E. "Bob" Kahn (born 1938) is an American
engineer Engineers, as practitioners of engineering, are professionals who Invention, invent, design, build, maintain and test machines, complex systems, structures, gadgets and materials. They aim to fulfill functional objectives and requirements while ...
and
computer scientist A computer scientist is a scientist who specializes in the academic study of computer science. Computer scientists typically work on the theoretical side of computation. Although computer scientists can also focus their work and research on ...
. After earning a Ph.D. degree from
Princeton University Princeton University is a private university, private Ivy League research university in Princeton, New Jersey, United States. Founded in 1746 in Elizabeth, New Jersey, Elizabeth as the College of New Jersey, Princeton is the List of Colonial ...
in 1964, he worked for
AT&T Bell Laboratories Nokia Bell Labs, commonly referred to as ''Bell Labs'', is an American industrial research and development company owned by Finnish technology company Nokia. With headquarters located in Murray Hill, New Jersey, Murray Hill, New Jersey, the compa ...
, as an
assistant professor Assistant professor is an academic rank just below the rank of an associate professor used in universities or colleges, mainly in the United States, Canada, Japan, and South Korea. Overview This position is generally taken after earning a doct ...
at MIT. He moved to Bolt Beranek & Newman (BBN) where he was the principal designer of the IMP subnetwork and the IMP-Host protocol for the ARPANET. In 1972, he joined the IPTO within ARPA, where he worked on both satellite packet networks (which led to SATNET) and ground-based radio packet networks (which led to PRNET), and recognized the value of being able to communicate across heterogenous networks. Along with Vint Cerf, he authored the seminal paper on
internetworking Internetworking is the practice of interconnecting multiple computer networks. Typically, this enables any pair of hosts in the connected networks to exchange messages irrespective of their hardware-level networking technology. The resulting sys ...
, ''A Protocol for Packet Network Intercommunication'', in 1974''.'' Kahn left ARPA in 1986 to found the
Corporation for National Research Initiatives The Corporation for National Research Initiatives (CNRI), based in Reston, Virginia, is a non-profit organization founded in 1986 by Bob Kahn, Robert E. Kahn as an "activities center around strategic development of network-based information technol ...
(CNRI), a nonprofit organization providing leadership and funding for research and development of the
National Information Infrastructure The National Information Infrastructure (NII) was the product of the High Performance Computing Act of 1991. It was a telecommunications policy buzzword, which was popularized during the Clinton Administration under the leadership of Vice-Presid ...
.


David Walden

David Walden (1942–2022) worked for BBN where he implemented the packet switching and routing software for the
Interface Message Processor The Interface Message Processor (IMP) was the packet switching node used to interconnect participant networks to the ARPANET from the late 1960s to 1989. It was the first generation of gateways, which are known today as routers. An IMP was a r ...
(IMP) of the
ARPANET The Advanced Research Projects Agency Network (ARPANET) was the first wide-area packet-switched network with distributed control and one of the first computer networks to implement the TCP/IP protocol suite. Both technologies became the tec ...
. He proposed what became known as the ''Walden message switching protocol,'' and was acknowledged by Cerf and Kahn in their seminal 1974 paper on
internetworking Internetworking is the practice of interconnecting multiple computer networks. Typically, this enables any pair of hosts in the connected networks to exchange messages irrespective of their hardware-level networking technology. The resulting sys ...
''.''


Ray Tomlinson

Ray Tomlinson (1941–2016) worked for BBN. He carried out the first experimental message transfer between separate computer systems on the ARPANET in 1971. His message was sent from one
Digital Equipment Corporation Digital Equipment Corporation (DEC ), using the trademark Digital, was a major American company in the computer industry from the 1960s to the 1990s. The company was co-founded by Ken Olsen and Harlan Anderson in 1957. Olsen was president until ...
PDP-10 Digital Equipment Corporation (DEC)'s PDP-10, later marketed as the DECsystem-10, is a mainframe computer family manufactured beginning in 1966 and discontinued in 1983. 1970s models and beyond were marketed under the DECsystem-10 name, especi ...
computer to another PDP-10, placed next to each other. Tomlinson initiated the use of the " @" sign to separate the names of the user and the user's machine. Tomlinson's idea for "network mail" was adopted on the ARPANET, which significantly increased network traffic. As a result, he has been called "the inventor of modern email". The use of the
File Transfer Protocol The File Transfer Protocol (FTP) is a standard communication protocol used for the transfer of computer files from a server to a client on a computer network. FTP is built on a client–server model architecture using separate control and d ...
(FTP) for network mail on the ARPANET was proposed in in March 1973. Through , , , and finally in November 1977, a standardized framework was developed for "electronic mail" using FTP mail servers on the ARPANET. Tomlinson discussed a network mail protocol among the
International Network Working Group The International Network Working Group (INWG) was a group of prominent computer science researchers in the 1970s who studied and developed Standardization, standards and communication protocol, protocols for interconnection of computer networks. Se ...
in ''INWG Protocol note 2'', in September 1974, although it was never adopted. Furthermore, he participated in the initial design of TCP during 1973–74, was acknowledged in the specification of TCP version 2 in March 1977, and version 3 in January 1978, which says that many of the changes introduced in that version were first described by Tomlinson the previous year when he put forward a "Proposal for TCP 3". Tomlinson received the IEEE Internet Award in 2004, with David H. Crocker, for networked email.


Steve Crocker

Steve Crocker (born 1944) has worked in the ARPANET and Internet communities since their inception. As a UCLA graduate student in the 1960s, he led the creation of the ARPANET host-to-host protocol, the Network Control Protocol. He also created the
Request for Comments A Request for Comments (RFC) is a publication in a series from the principal technical development and standards-setting bodies for the Internet, most prominently the Internet Engineering Task Force (IETF). An RFC is authored by individuals or ...
(RFC) series, authoring the very first RFC and many more. He was instrumental in creating the ARPA Network Working Group, the forerunner of the modern
Internet Engineering Task Force The Internet Engineering Task Force (IETF) is a standards organization for the Internet standard, Internet and is responsible for the technical standards that make up the Internet protocol suite (TCP/IP). It has no formal membership roster ...
. In 1972, Crocker moved to the Advanced Research Projects Agency (ARPA) to become a program manager. He formed the
International Network Working Group The International Network Working Group (INWG) was a group of prominent computer science researchers in the 1970s who studied and developed Standardization, standards and communication protocol, protocols for interconnection of computer networks. Se ...
(INWG), then his research interests shifted to
artificial intelligence Artificial intelligence (AI) is the capability of computer, computational systems to perform tasks typically associated with human intelligence, such as learning, reasoning, problem-solving, perception, and decision-making. It is a field of re ...
. He was acknowledged by Cerf and Kahn in their seminal 1974 paper on internetworking''.'' He was a senior researcher at
USC USC may refer to: Education United States * Universidad del Sagrado Corazón, Santurce, Puerto Rico * University of South Carolina, Columbia, South Carolina ** University of South Carolina System, a state university system of South Carolina * ...
's Information Sciences Institute (ISI) where he contributed to discussions on the Transmission Control Program in August 1977. He was a founder and director of the Computer Science Laboratory at
The Aerospace Corporation The Aerospace Corporation is an American nonprofit corporation that operates a federally funded research and development center (FFRDC). The corporation provides technical guidance and advice on all aspects of space missions to military, civil ...
and a vice president at Trusted Information Systems. In 1994, Crocker was one of the founders and chief technology officer of CyberCash, Inc. He has also been an
IETF The Internet Engineering Task Force (IETF) is a standards organization for the Internet standard, Internet and is responsible for the technical standards that make up the Internet protocol suite (TCP/IP). It has no formal membership roster ...
security area director, a member of the
Internet Architecture Board The Internet Architecture Board (IAB) is a committee of the Internet Engineering Task Force (IETF) and an advisory body of the Internet Society (ISOC). Its responsibilities include architectural oversight of IETF activities, Internet Standards ...
, chair of the
Internet Corporation for Assigned Names and Numbers The Internet Corporation for Assigned Names and Numbers (ICANN ) is a global multistakeholder group and nonprofit organization headquartered in the United States responsible for coordinating the maintenance and procedures of several dat ...
(ICANN) Security and Stability Advisory Committee, a board member of the
Internet Society The Internet Society (ISOC) is an American non-profit advocacy organization founded in 1992 with local chapters around the world. It has offices in Reston, Virginia, United States, and Geneva, Switzerland. Organization The Internet Society ...
and numerous other Internet-related volunteer positions. Crocker is chair of the board of ICANN. For this work, Crocker was awarded the 2002
IEEE The Institute of Electrical and Electronics Engineers (IEEE) is an American 501(c)(3) organization, 501(c)(3) public charity professional organization for electrical engineering, electronics engineering, and other related disciplines. The IEEE ...
Internet Award "for leadership in creation of key elements in open evolution of Internet protocols". In 2012, Crocker was inducted into the
Internet Hall of Fame The Internet Hall of Fame is an honorary lifetime achievement award administered by the Internet Society (ISOC) in recognition of individuals who have made significant contributions to the development and advancement of the Internet. Overview ...
by the
Internet Society The Internet Society (ISOC) is an American non-profit advocacy organization founded in 1992 with local chapters around the world. It has offices in Reston, Virginia, United States, and Geneva, Switzerland. Organization The Internet Society ...
.


Jon Postel

Jon Postel (1943–1998) was a researcher at the University of Southern California's (USC's) Information Sciences Institute (ISI). He was editor of much of the early the RFC series as well as versions 3 and 4 of
TCP/IP The Internet protocol suite, commonly known as TCP/IP, is a framework for organizing the communication protocols used in the Internet and similar computer networks according to functional criteria. The foundational protocols in the suite are ...
in January 1978 and February 1979, and the final version of TCP and Internet Protocol, which were published in January 1980 by DARPA on behalf of the Defense Communication Agency. He was the creator of the
Simple Mail Transfer Protocol The Simple Mail Transfer Protocol (SMTP) is an Internet standard communication protocol for electronic mail transmission. Mail servers and other message transfer agents use SMTP to send and receive mail messages. User-level email clients typ ...
(SMTP) and the co-creator and longtime administrator of the
Internet Assigned Numbers Authority The Internet Assigned Numbers Authority (IANA) is a standards organization that oversees global IP address allocation, Autonomous system (Internet), autonomous system number allocation, DNS root zone, root zone management in the Domain Name Syste ...
(IANA). His beard and sandals made him "the most recognizable archetype of an Internet pioneer". The
International Network Working Group The International Network Working Group (INWG) was a group of prominent computer science researchers in the 1970s who studied and developed Standardization, standards and communication protocol, protocols for interconnection of computer networks. Se ...
(INWG) discussed protocols for electronic mail in 1979, which was referenced by Postel in his early work on Internet email. Postel first proposed an Internet Message Protocol in 1979 as part of the Internet Experiment Note (IEN) series. In September 1980, Postel and Suzanne Sluizer published which proposed the Mail Transfer Protocol to enable servers to transmit "computer mail" on the ARPANET as a replacement for FTP. of May 1981 removed all references to FTP. In November 1981, Postel published describing the
Simple Mail Transfer Protocol The Simple Mail Transfer Protocol (SMTP) is an Internet standard communication protocol for electronic mail transmission. Mail servers and other message transfer agents use SMTP to send and receive mail messages. User-level email clients typ ...
(SMTP) protocol, which was updated by in August 1982. Addresses were extended to by in February 1982. RFC 822, written by David H. Crocker, defined the format for messages. The
Internet Society The Internet Society (ISOC) is an American non-profit advocacy organization founded in 1992 with local chapters around the world. It has offices in Reston, Virginia, United States, and Geneva, Switzerland. Organization The Internet Society ...
's Postel Award is named in his honor, as is the Postel Center at the Information Sciences Institute. His obituary was written by
Vint Cerf Vinton Gray Cerf (; born June 23, 1943) is an American Internet pioneer and is recognized as one of "the fathers of the Internet", sharing this title with TCP/IP co-developer Robert Kahn. He has received honorary degrees and awards that inclu ...
and published as RFC 2468 in remembrance of Postel and his work. In 2012, Postel was inducted into the
Internet Hall of Fame The Internet Hall of Fame is an honorary lifetime achievement award administered by the Internet Society (ISOC) in recognition of individuals who have made significant contributions to the development and advancement of the Internet. Overview ...
by the Internet Society.


Vint Cerf

Vinton G. "Vint" Cerf (born 1943) is an American computer scientist.Cerf's ''curriculum vitae'' as of February 2001
attached to a transcript of his testimony that month before the United States House Energy Subcommittee on Telecommunications and the Internet, from
ICANN The Internet Corporation for Assigned Names and Numbers (ICANN ) is a global multistakeholder group and nonprofit organization headquartered in the United States responsible for coordinating the maintenance and procedures of several dat ...
's website
He is recognized as one of " the fathers of the Internet", sharing this title with
Bob Kahn Robert Elliot Kahn (born December 23, 1938) is an American electrical engineer who, along with Vint Cerf, first proposed the Transmission Control Protocol (TCP) and the Internet Protocol (IP), the fundamental communication protocols at the hea ...
. He earned his Ph.D. from
UCLA The University of California, Los Angeles (UCLA) is a public land-grant research university in Los Angeles, California, United States. Its academic roots were established in 1881 as a normal school then known as the southern branch of the C ...
in 1972. At UCLA he worked in Professor Leonard Kleinrock's networking group that connected the first two nodes of the ARPANET and contributed to the ARPANET host-to-host protocol, the Network Control Program. Cerf was an
assistant professor Assistant professor is an academic rank just below the rank of an associate professor used in universities or colleges, mainly in the United States, Canada, Japan, and South Korea. Overview This position is generally taken after earning a doct ...
at
Stanford University Leland Stanford Junior University, commonly referred to as Stanford University, is a Private university, private research university in Stanford, California, United States. It was founded in 1885 by railroad magnate Leland Stanford (the eighth ...
from 1972 to 1976, where he conducted research on packet network interconnection protocols and co-designed the DoD TCP/IP protocol suite. He authored the seminal paper on
internetworking Internetworking is the practice of interconnecting multiple computer networks. Typically, this enables any pair of hosts in the connected networks to exchange messages irrespective of their hardware-level networking technology. The resulting sys ...
, ''A Protocol for Packet Network Intercommunication'', in May 1974 with
Bob Kahn Robert Elliot Kahn (born December 23, 1938) is an American electrical engineer who, along with Vint Cerf, first proposed the Transmission Control Protocol (TCP) and the Internet Protocol (IP), the fundamental communication protocols at the hea ...
; the first specification of TCP with Yogen Dalal and Carl Sunshine in December that year; and edited the second version of TCP in March 1977. He was a program manager for the Advanced Research Projects Agency (ARPA) from 1976 to 1982 overseeing the first internetworking experiments with SATNET and PRNET. Cerf was instrumental in the formation of both the
Internet Society The Internet Society (ISOC) is an American non-profit advocacy organization founded in 1992 with local chapters around the world. It has offices in Reston, Virginia, United States, and Geneva, Switzerland. Organization The Internet Society ...
and
Internet Corporation for Assigned Names and Numbers The Internet Corporation for Assigned Names and Numbers (ICANN ) is a global multistakeholder group and nonprofit organization headquartered in the United States responsible for coordinating the maintenance and procedures of several dat ...
(ICANN), serving as founding president of the Internet Society from 1992 to 1995 and in 1999 as chairman of the board and as ICANN Chairman from 2000 to 2007. His many awards include the National Medal of Technology, the
Turing Award The ACM A. M. Turing Award is an annual prize given by the Association for Computing Machinery (ACM) for contributions of lasting and major technical importance to computer science. It is generally recognized as the highest distinction in the fi ...
,Cerf wins Turing Award
16 February 2005
the
Presidential Medal of Freedom The Presidential Medal of Freedom is the highest civilian award of the United States, alongside the Congressional Gold Medal. It is an award bestowed by decision of the president of the United States to "any person recommended to the President ...
,2005 Presidential Medal of Freedom recipients
from the White House website
and membership in the
National Academy of Engineering The National Academy of Engineering (NAE) is an American Nonprofit organization, nonprofit, NGO, non-governmental organization. It is part of the National Academies of Sciences, Engineering, and Medicine (NASEM), along with the National Academ ...
and the Internet Society's Internet Hall of Fame.


Douglas Engelbart

Douglas Engelbart (1925–2013) was an early researcher at the
Stanford Research Institute SRI International (SRI) is a nonprofit organization, nonprofit scientific research, scientific research institute and organization headquartered in Menlo Park, California, United States. It was established in 1946 by trustees of Stanford Univer ...
. His
Augmentation Research Center SRI International's Augmentation Research Center (ARC) was founded in the 1960s by electrical engineer Douglas Engelbart to develop and experiment with new tools and techniques for collaboration and information processing. The main product to ...
laboratory became the second node on the ARPANET in October 1969, and SRI became the early Network Information Center, which evolved into the
domain name registry A domain name registry is a database of all domain names and the associated registrant information in the top level domains of the Domain Name System (DNS) of the Internet that enables third party entities to request administrative control of a d ...
. Engelbart was a committed, vocal proponent of the development and use of computers and
computer network A computer network is a collection of communicating computers and other devices, such as printers and smart phones. In order to communicate, the computers and devices must be connected by wired media like copper cables, optical fibers, or b ...
s to help cope with the world's increasingly urgent and complex problems. He is best known for his work on the challenges of
human–computer interaction Human–computer interaction (HCI) is the process through which people operate and engage with computer systems. Research in HCI covers the design and the use of computer technology, which focuses on the interfaces between people (users) and comp ...
, resulting in the invention of the
computer mouse A computer mouse (plural mice; also mouses) is a hand-held pointing device that detects Plane (mathematics), two-dimensional motion relative to a surface. This motion is typically translated into the motion of the Cursor (user interface)#Po ...
, and the development of
hypertext Hypertext is E-text, text displayed on a computer display or other electronic devices with references (hyperlinks) to other text that the reader can immediately access. Hypertext documents are interconnected by hyperlinks, which are typic ...
, networked computers, and precursors to
graphical user interface A graphical user interface, or GUI, is a form of user interface that allows user (computing), users to human–computer interaction, interact with electronic devices through Graphics, graphical icon (computing), icons and visual indicators such ...
s.


John Klensin

John Klensin's involvement with Internet began in 1969, when he worked on the
File Transfer Protocol The File Transfer Protocol (FTP) is a standard communication protocol used for the transfer of computer files from a server to a client on a computer network. FTP is built on a client–server model architecture using separate control and d ...
. Klensin was involved in the early procedural and definitional work for DNS administration and top-level domain definitions and was part of the committee that worked out the transition of DNS-related responsibilities between USC-ISI and what became ICANN. His career includes 30 years as a principal research scientist at
MIT The Massachusetts Institute of Technology (MIT) is a private research university in Cambridge, Massachusetts, United States. Established in 1861, MIT has played a significant role in the development of many areas of modern technology and sc ...
, a stint as INFOODS Project Coordinator for the
United Nations University The is the think tank and academic arm of the United Nations. Headquartered in Shibuya, Tokyo, Japan, with diplomatic status as a UN institution, its mission is to help resolve list of global issues, global issues related to Human development ...
, Distinguished Engineering Fellow at MCI WorldCom, and Internet Architecture Vice President at
AT&T AT&T Inc., an abbreviation for its predecessor's former name, the American Telephone and Telegraph Company, is an American multinational telecommunications holding company headquartered at Whitacre Tower in Downtown Dallas, Texas. It is the w ...
; he is now an independent consultant. In 1992 Randy Bush and John Klensin created the ''Network Startup Resource Center'', helping dozens of countries to establish connections with
FidoNet __ / \ /, oo \ (_, /_) _`@/_ \ _ , , \ \\ , (*) , \ )) ______ , __U__, / \// / FI ...
,
UseNet Usenet (), a portmanteau of User's Network, is a worldwide distributed discussion system available on computers. It was developed from the general-purpose UUCP, Unix-to-Unix Copy (UUCP) dial-up network architecture. Tom Truscott and Jim Elli ...
, and when possible the
Internet The Internet (or internet) is the Global network, global system of interconnected computer networks that uses the Internet protocol suite (TCP/IP) to communicate between networks and devices. It is a internetworking, network of networks ...
. In 2003, he received an International Committee for Information Technology Standards Merit Award. In 2007, he was inducted as a Fellow of the
Association for Computing Machinery The Association for Computing Machinery (ACM) is a US-based international learned society for computing. It was founded in 1947 and is the world's largest scientific and educational computing society. The ACM is a non-profit professional membe ...
for contributions to networking standards and Internet applications. In 2012, Klensin was inducted into the
Internet Hall of Fame The Internet Hall of Fame is an honorary lifetime achievement award administered by the Internet Society (ISOC) in recognition of individuals who have made significant contributions to the development and advancement of the Internet. Overview ...
by the
Internet Society The Internet Society (ISOC) is an American non-profit advocacy organization founded in 1992 with local chapters around the world. It has offices in Reston, Virginia, United States, and Geneva, Switzerland. Organization The Internet Society ...
.


Elizabeth Feinler

Elizabeth J. "Jake" Feinler (born 1931) was a staff member of Doug Engelbart's
Augmentation Research Center SRI International's Augmentation Research Center (ARC) was founded in the 1960s by electrical engineer Douglas Engelbart to develop and experiment with new tools and techniques for collaboration and information processing. The main product to ...
(ARC) at SRI and PI for the Network Information Center (NIC) for the ARPANET and the Defense Data Network (DDN) from 1972 until 1989. In 2012, Feinler was inducted into the
Internet Hall of Fame The Internet Hall of Fame is an honorary lifetime achievement award administered by the Internet Society (ISOC) in recognition of individuals who have made significant contributions to the development and advancement of the Internet. Overview ...
by the
Internet Society The Internet Society (ISOC) is an American non-profit advocacy organization founded in 1992 with local chapters around the world. It has offices in Reston, Virginia, United States, and Geneva, Switzerland. Organization The Internet Society ...
.


Louis Pouzin

Louis Pouzin (born 1931) is a French computer scientist. He built the first implementation of a wide-area
datagram A datagram is a basic transfer unit associated with a packet-switched network. Datagrams are typically structured in header and payload sections. Datagrams provide a connectionless communication service across a packet-switched network. The de ...
packet-communications network,
CYCLADES The CYCLADES computer network () was a French research network created in the early 1970s. It was one of the pioneering networks experimenting with the concept of packet switching and, unlike the ARPANET, was explicitly designed to facilitate i ...
, that demonstrated the feasibility of
internetworking Internetworking is the practice of interconnecting multiple computer networks. Typically, this enables any pair of hosts in the connected networks to exchange messages irrespective of their hardware-level networking technology. The resulting sys ...
, which he called a "catenet". Concepts from his work were reflected in the development of TCP/IP. He was acknowledged by Vint Cerf and Bob Kahn in their seminal 1974 paper on internetworking''.'' In 1997, Pouzin received the ACM SIGCOMM Award for "pioneering work on connectionless packet communication"."Postel and Pouzin: 1997 SIGCOMM Award Winners"
ACM SIGCOMM web site
He was named a Chevalier of the Legion of Honor by the French government on 19 March 2003. In 2012, Pouzin was inducted into the
Internet Hall of Fame The Internet Hall of Fame is an honorary lifetime achievement award administered by the Internet Society (ISOC) in recognition of individuals who have made significant contributions to the development and advancement of the Internet. Overview ...
by the
Internet Society The Internet Society (ISOC) is an American non-profit advocacy organization founded in 1992 with local chapters around the world. It has offices in Reston, Virginia, United States, and Geneva, Switzerland. Organization The Internet Society ...
.


Hubert Zimmermann

Hubert Zimmerman (1941–2012) was a French software engineer who pioneered internetworking with Louis Pouzin. He contributed to early discussions on the Transmission Control Program, and was acknowledged by Cerf and Kahn in their seminal 1974 paper on internetworking''.''


Gérard Le Lann

Gérard Le Lann proposed the sliding window scheme for achieving reliable error and flow control on end-to-end connections. He joined Vint Cerf's research team at Stanford University during 1973-4 and Cerf incorporated his sliding window scheme into the research work for the Transmission Control Program (TCP). Le Lann is included on the Stanford University "Birth of the Internet" plaque and mentioned in the Stanford TCP project completion report.


Bob Metcalfe

Bob Metcalfe (born 1946) designed and began implementing
Ethernet Ethernet ( ) is a family of wired computer networking technologies commonly used in local area networks (LAN), metropolitan area networks (MAN) and wide area networks (WAN). It was commercially introduced in 1980 and first standardized in 198 ...
and the
PARC Universal Packet The PARC Universal Packet (PUP or PuP, although the original documents usually use Pup) was one of the two earliest internetworking protocol suites; it was created by researchers at Xerox PARC in the mid-1970s. (Technically, the name ''PUP'' on ...
for internetworking while studying for his PhD at Harvard University and working at
Xerox Parc Future Concepts division (formerly Palo Alto Research Center, PARC and Xerox PARC) is a research and development company in Palo Alto, California. It was founded in 1969 by Jacob E. "Jack" Goldman, chief scientist of Xerox Corporation, as a div ...
. He contributed to early discussions on the Transmission Control Program at the
International Network Working Group The International Network Working Group (INWG) was a group of prominent computer science researchers in the 1970s who studied and developed Standardization, standards and communication protocol, protocols for interconnection of computer networks. Se ...
(INWG) meeting in June 1973, and participated in the initial design of TCP, worked out at Stanford during 1973–74. He was acknowledged by Cerf and Kahn in their seminal 1974 paper on internetworking''.'' In addition, along with Yogen Dalal, he contributed to discussions leading up to the splitting of TCP, which influenced the work of Jon Postel, published in the Internet Experiment Note series.


John Shoch

John Shoch worked on internetworking at Xerox Parc. He contributed to early discussions on the Transmission Control Program at the June 1973 INWG meeting, as well as discussions in August 1977, and was acknowledged in an early version of TCP version v4 in September 1978. He published several Internet Experiment Notes in the late 1970s and 1980, and his work was referenced in the final IP version 4 that would be standardized in (1980) and (1981).


Yogen Dalal

Yogen K. Dalal, also known as Yogin Dalal, is an Indian electrical engineer and computer scientist. He was an ARPANET pioneer, and a key contributor to the development of internetworking protocols. Dalal co-authored the first Transmission Control Program specification, with Vint Cerf and Carl Sunshine between 1973 and 1974. It was published as (''Specification of Internet Transmission Control Program'') in December 1974. It first used the term ''internet'' as a shorthand for ''internetworking'', and later RFCs repeated this use. Dalal later proposed splitting Transmission Control Program into
Transmission Control Protocol The Transmission Control Protocol (TCP) is one of the main communications protocol, protocols of the Internet protocol suite. It originated in the initial network implementation in which it complemented the Internet Protocol (IP). Therefore, th ...
and
Internet Protocol The Internet Protocol (IP) is the network layer communications protocol in the Internet protocol suite for relaying datagrams across network boundaries. Its routing function enables internetworking, and essentially establishes the Internet. IP ...
between 1976 and 1977, leading to the development of TCP/IP. He also worked at
Xerox PARC Future Concepts division (formerly Palo Alto Research Center, PARC and Xerox PARC) is a research and development company in Palo Alto, California. It was founded in 1969 by Jacob E. "Jack" Goldman, chief scientist of Xerox Corporation, as a div ...
, where he contributed to the development of the
Ethernet Ethernet ( ) is a family of wired computer networking technologies commonly used in local area networks (LAN), metropolitan area networks (MAN) and wide area networks (WAN). It was commercially introduced in 1980 and first standardized in 198 ...
, the
Xerox Network Systems Xerox Network Systems (XNS) is a computer networking protocol suite developed by Xerox within the Xerox Network Systems Architecture. It provided general purpose network communications, internetwork routing and packet delivery, and higher level ...
(XNS), and the
Xerox Star The Xerox Star workstation, officially named Xerox Star 8010 Information System, is the first commercial personal computer to incorporate technologies that have since become standard in personal computers, including a bitmapped display, a window- ...
. After receiving a B.Tech in
Electrical Engineering Electrical engineering is an engineering discipline concerned with the study, design, and application of equipment, devices, and systems that use electricity, electronics, and electromagnetism. It emerged as an identifiable occupation in the l ...
at the Indian Institute of Technology Bombay, he went to the United States to study for a
master's degree A master's degree (from Latin ) is a postgraduate academic degree awarded by universities or colleges upon completion of a course of study demonstrating mastery or a high-order overview of a specific field of study or area of professional prac ...
at
Stanford University Leland Stanford Junior University, commonly referred to as Stanford University, is a Private university, private research university in Stanford, California, United States. It was founded in 1885 by railroad magnate Leland Stanford (the eighth ...
in 1972 and then a
PhD A Doctor of Philosophy (PhD, DPhil; or ) is a terminal degree that usually denotes the highest level of academic achievement in a given discipline and is awarded following a course of graduate study and original research. The name of the deg ...
in 1973. His interest in
data communication Data communication, including data transmission and data reception, is the transfer of data, transmitted and received over a point-to-point or point-to-multipoint communication channel. Examples of such channels are copper wires, optic ...
as a
graduate student Postgraduate education, graduate education, or graduate school consists of Academic degree, academic or professional degrees, certificates, diplomas, or other qualifications usually pursued by higher education, post-secondary students who have ...
led him to working with new professor Vint Cerf as a teaching assistant in 1972, and then as a research assistant while studying for his PhD. In Summer 1973, while Cerf and Bob Kahn were attempting to formulate an internetworking protocol, Dalal joined their research team to assist them on developing what eventually became Transmission Control Program. After co-authoring the first internet protocol with Cerf and Sunshine in 1974, Dalal received his PhD in Electrical Engineering and
Computer Science Computer science is the study of computation, information, and automation. Computer science spans Theoretical computer science, theoretical disciplines (such as algorithms, theory of computation, and information theory) to Applied science, ...
, and remained active in the development of TCP/IP at Stanford for several years. Between 1976 and 1977, Dalal proposed separating Transmission Control Program's
routing Routing is the process of selecting a path for traffic in a Network theory, network or between or across multiple networks. Broadly, routing is performed in many types of networks, including circuit-switched networks, such as the public switched ...
and transmission control functions into two discrete layers, which led to the splitting of Transmission Control Program into the Transmission Control Protocol and Internet Protocol. Due to his experience in
communication protocol A communication protocol is a system of rules that allows two or more entities of a communications system to transmit information via any variation of a physical quantity. The protocol defines the rules, syntax, semantics (computer science), sem ...
s, several key researchers were greatly interested in recruiting him, including Bob Kahn's ARPANET team at
DARPA The Defense Advanced Research Projects Agency (DARPA) is a research and development agency of the United States Department of Defense responsible for the development of emerging technologies for use by the military. Originally known as the Adva ...
, Ray Tomlinson at BBN, Bob Taylor's team at Xerox PARC, and Steve Crocker at the Information Sciences Institute (ISI). In early 1977, Dalal joined Robert Metcalfe's team at Xerox PARC, where he worked on the development of the Xerox Network Systems. He also worked on the 10 Mbps Ethernet Specification at Xerox PARC, along with DEC and
Intel Intel Corporation is an American multinational corporation and technology company headquartered in Santa Clara, California, and Delaware General Corporation Law, incorporated in Delaware. Intel designs, manufactures, and sells computer compo ...
, leading to the IEEE 802.3 LAN standard. He later left Xerox, and became a founding member of the startup tech companies Claris and Metaphor Computer Systems in the early 1980s. He later became a managing partner of Mayfield, and joined the
Board of Directors A board of directors is a governing body that supervises the activities of a business, a nonprofit organization, or a government agency. The powers, duties, and responsibilities of a board of directors are determined by government regulatio ...
at several tech companies including Narus and Nuance. In 2005, he was recognized by Stanford as one of the pioneers of the Internet.


Carl Sunshine

Carl Sunshine completed his PhD under Vint Cerf at the Digital Systems Laboratory, Stanford University. He worked on the first full TCP specification in December 1974 with Cerf and Yogen Dalal. He later worked for
RAND The RAND Corporation, doing business as RAND, is an American nonprofit global policy think tank, research institute, and public sector consulting firm. RAND engages in research and development (R&D) in several fields and industries. Since the ...
and
The Aerospace Corporation The Aerospace Corporation is an American nonprofit corporation that operates a federally funded research and development center (FFRDC). The corporation provides technical guidance and advice on all aspects of space missions to military, civil ...
. Sunshine published a notable paper on internetworking in 1977, among many papers on networking. During the 1980s, he chaired the
International Network Working Group The International Network Working Group (INWG) was a group of prominent computer science researchers in the 1970s who studied and developed Standardization, standards and communication protocol, protocols for interconnection of computer networks. Se ...
, and edited two books on communication protocols.


Peter Kirstein

Peter T. Kirstein (1933–2020) was a British
computer scientist A computer scientist is a scientist who specializes in the academic study of computer science. Computer scientists typically work on the theoretical side of computation. Although computer scientists can also focus their work and research on ...
and a leader in the international development of the Internet. In 1973, he established one of the first two international nodes of the ARPANET. In 1978 he co-authored "Issues in packet-network interconnection" with Vint Cerf, one of the early technical papers on the internet concept. His research group at
University College London University College London (Trade name, branded as UCL) is a Public university, public research university in London, England. It is a Member institutions of the University of London, member institution of the Federal university, federal Uni ...
adopted TCP/IP in 1982, ahead of ARPANET, and played a significant role in the very earliest experimental Internet work. Starting in 1983 he chaired the International Collaboration Board, which involved six NATO countries, served on the Networking Panel of the NATO Science Committee (serving as chair in 2001), and on Advisory Committees for the Australian Research Council, the Canadian Department of Communications, the German GMD, and the Indian Education and Research Network (ERNET) Project. He led the Silk Project, which provides satellite-based Internet access to the Newly Independent States in the
Southern Caucasus The South Caucasus, also known as Transcaucasia or the Transcaucasus, is a geographical region on the border of Eastern Europe and West Asia, straddling the southern Caucasus Mountains. The South Caucasus roughly corresponds to modern Armenia, ...
and
Central Asia Central Asia is a region of Asia consisting of Kazakhstan, Kyrgyzstan, Tajikistan, Turkmenistan, and Uzbekistan. The countries as a group are also colloquially referred to as the "-stans" as all have names ending with the Persian language, Pers ...
. In 2012, Kirstein was inducted into the
Internet Hall of Fame The Internet Hall of Fame is an honorary lifetime achievement award administered by the Internet Society (ISOC) in recognition of individuals who have made significant contributions to the development and advancement of the Internet. Overview ...
by the
Internet Society The Internet Society (ISOC) is an American non-profit advocacy organization founded in 1992 with local chapters around the world. It has offices in Reston, Virginia, United States, and Geneva, Switzerland. Organization The Internet Society ...
.


Adrian Stokes

Adrian Stokes (1945–2020) was a researcher at UCL's Institute of Computer Science working for Peter Kirstein in 1973. He worked on the first implementation of email in the United Kingdom in 1974 as well as the early monitoring software for the interconnection of the ARPANET with British academic networks, the first international heterogenous computer network. He contributed to a number of books on communication protocols and computer networking from the late 1970s to the early 1990s.


Judith Estrin

Judith Estrin worked with
Vinton Cerf Vinton Gray Cerf (; born June 23, 1943) is an American Internet pioneer and is recognized as one of "the fathers of the Internet", sharing this title with TCP/IP co-developer Robert Kahn. He has received honorary degrees and awards that inclu ...
on the
Transmission Control Protocol The Transmission Control Protocol (TCP) is one of the main communications protocol, protocols of the Internet protocol suite. It originated in the initial network implementation in which it complemented the Internet Protocol (IP). Therefore, th ...
project at Stanford University in the 1970s. Her role within the research team was to help with the initial implementation tests of TCP with University College London.


Danny Cohen

Danny Cohen (1937–2019) led several projects on real-time interactive applications over the
ARPANet The Advanced Research Projects Agency Network (ARPANET) was the first wide-area packet-switched network with distributed control and one of the first computer networks to implement the TCP/IP protocol suite. Both technologies became the tec ...
and the
Internet The Internet (or internet) is the Global network, global system of interconnected computer networks that uses the Internet protocol suite (TCP/IP) to communicate between networks and devices. It is a internetworking, network of networks ...
starting in 1973. After serving on the computer science faculty at
Harvard University Harvard University is a Private university, private Ivy League research university in Cambridge, Massachusetts, United States. Founded in 1636 and named for its first benefactor, the History of the Puritans in North America, Puritan clergyma ...
(1969–1973) and
Caltech The California Institute of Technology (branded as Caltech) is a private university, private research university in Pasadena, California, United States. The university is responsible for many modern scientific advancements and is among a small g ...
(1976), he joined the Information Sciences Institute (ISI) at
University of Southern California The University of Southern California (USC, SC, or Southern Cal) is a Private university, private research university in Los Angeles, California, United States. Founded in 1880 by Robert M. Widney, it is the oldest private research university in ...
(USC). At ISI (1973–1993) he started many network related projects including, one to allow interactive, real-time speech over the ARPANet, packet-voice, packet-video, and Internet Concepts. He was acknowledged in the specification of TCP version 3 in January 1978. In 1981 he adapted his visual flight simulator to run over the
ARPANet The Advanced Research Projects Agency Network (ARPANET) was the first wide-area packet-switched network with distributed control and one of the first computer networks to implement the TCP/IP protocol suite. Both technologies became the tec ...
, the first application of packet switching networks to real-time applications. In 1993, he worked on
Distributed Interactive Simulation Distributed Interactive Simulation (DIS) is an IEEE standard for conducting real-time platform-level wargaming across multiple host computers and is used worldwide, especially by military organizations but also by other agencies such as those inv ...
through several projects funded by
United States Department of Defense The United States Department of Defense (DoD, USDOD, or DOD) is an United States federal executive departments, executive department of the federal government of the United States, U.S. federal government charged with coordinating and superv ...
. He is probably best known for his 1980 paper "On Holy Wars and a Plea for Peace" Also published at '' IEEE Computer''
October 1981 issue
which adopted the terminology of
endianness file:Gullivers_travels.jpg, ''Gulliver's Travels'' by Jonathan Swift, the novel from which the term was coined In computing, endianness is the order in which bytes within a word (data type), word of digital data are transmitted over a data comm ...
for computing. Cohen was elected to the
National Academy of Engineering The National Academy of Engineering (NAE) is an American Nonprofit organization, nonprofit, NGO, non-governmental organization. It is part of the National Academies of Sciences, Engineering, and Medicine (NASEM), along with the National Academ ...
in 2006 for contributions to the advanced design, graphics, and real-time network protocols of computer systemsNational Academy of Engineering member
, 2006
and as an
IEEE Fellow , the Institute of Electrical and Electronics Engineers The Institute of Electrical and Electronics Engineers (IEEE) is an American 501(c)(3) public charity professional organization for electrical engineering, electronics engineering, and ot ...
in 2010 for contributions to protocols for packet switching in real-time applications.IEEE Fellow
, 2010
In 1993 he received a
United States Air Force The United States Air Force (USAF) is the Air force, air service branch of the United States Department of Defense. It is one of the six United States Armed Forces and one of the eight uniformed services of the United States. Tracing its ori ...
Meritorious Civilian Service Award. And in 2012, Cohen was inducted into the
Internet Hall of Fame The Internet Hall of Fame is an honorary lifetime achievement award administered by the Internet Society (ISOC) in recognition of individuals who have made significant contributions to the development and advancement of the Internet. Overview ...
by the
Internet Society The Internet Society (ISOC) is an American non-profit advocacy organization founded in 1992 with local chapters around the world. It has offices in Reston, Virginia, United States, and Geneva, Switzerland. Organization The Internet Society ...
.


David J. Farber

Starting in the 1980s Dave Farber (born 1934) helped conceive and organize the major American research networks
CSNET The Computer Science Network (CSNET) was a computer network that began operation in 1981 in the United States. Its purpose was to extend networking benefits, for computer science departments at academic and research institutions that could not be ...
,
NSFNET The National Science Foundation Network (NSFNET) was a program of coordinated, evolving projects sponsored by the National Science Foundation (NSF) from 1985 to 1995 to promote advanced research and education networking in the United States. The ...
, and the
National Research and Education Network A national research and education network (NREN) is a specialised internet service provider dedicated to supporting the needs of the research and education communities within a country. It is usually distinguished by support for a high-speed backb ...
(NREN). He helped create the NSF/DARPA-funded Gigabit Network Test bed Initiative and served as the chairman of the Gigabit Test bed Coordinating Committee. He also served as chief technologist at the US
Federal Communications Commission The Federal Communications Commission (FCC) is an independent agency of the United States government that regulates communications by radio, television, wire, internet, wi-fi, satellite, and cable across the United States. The FCC maintains j ...
(2000–2001) and is a founding editor of ICANNWatch. Farber is an
IEEE Fellow , the Institute of Electrical and Electronics Engineers The Institute of Electrical and Electronics Engineers (IEEE) is an American 501(c)(3) public charity professional organization for electrical engineering, electronics engineering, and ot ...
, ACM Fellow, recipient of the 1995 SIGCOMM Award for vision and breadth of contributions to and inspiration of others in computer networks, distributed computing, and network infrastructure development, and the 1996
John Scott Award John Scott Award, created in 1816 as the John Scott Legacy Medal and Premium, is presented to men and women whose inventions improved the "comfort, welfare, and happiness of human kind" in a significant way. "...the John Scott Medal Fund, establish ...
for seminal contributions to the field of computer networks and distributed computer systems. He served on the board of directors of the
Electronic Frontier Foundation The Electronic Frontier Foundation (EFF) is an American international non-profit digital rights group based in San Francisco, California. It was founded in 1990 to promote Internet civil liberties. It provides funds for legal defense in court, ...
, the
Electronic Privacy Information Center The Electronic Privacy Information Center (EPIC) is an independent nonprofit research center established in 1994 to protect privacy, freedom of expression, and democratic values in the information age. Based in Washington, D.C., their mission i ...
advisory board, the board of trustees of the
Internet Society The Internet Society (ISOC) is an American non-profit advocacy organization founded in 1992 with local chapters around the world. It has offices in Reston, Virginia, United States, and Geneva, Switzerland. Organization The Internet Society ...
, and as a member of the Presidential Advisory Committee on High Performance Computing and Communications, Information Technology and Next Generation Internet. On 3 August 2013, Farber was inducted into the Pioneers Circle of the
Internet Hall of Fame The Internet Hall of Fame is an honorary lifetime achievement award administered by the Internet Society (ISOC) in recognition of individuals who have made significant contributions to the development and advancement of the Internet. Overview ...
for his key role in many systems that converged into today's Internet.


Paul Mockapetris

Paul V. Mockapetris (born 1948), while working with
Jon Postel Jonathan Bruce Postel (; August 6, 1943 – October 16, 1998) was an American computer scientist who made many significant contributions to the development of the Internet, particularly with respect to Internet Standard, standards. He is known p ...
at the Information Sciences Institute (ISI) in 1983, proposed the
Domain Name System The Domain Name System (DNS) is a hierarchical and distributed name service that provides a naming system for computers, services, and other resources on the Internet or other Internet Protocol (IP) networks. It associates various information ...
(DNS) architecture. He was
IETF The Internet Engineering Task Force (IETF) is a standards organization for the Internet standard, Internet and is responsible for the technical standards that make up the Internet protocol suite (TCP/IP). It has no formal membership roster ...
chair from 1994 to 1996. Mockapetris received the 1997 John C. Dvorak Telecommunications Excellence Award "Personal Achievement - Network Engineering" for DNS design and implementation, the 2003 IEEE Internet Award for his contributions to DNS, and the Distinguished Alumnus award from the
University of California, Irvine The University of California, Irvine (UCI or UC Irvine) is a Public university, public Land-grant university, land-grant research university in Irvine, California, United States. One of the ten campuses of the University of California system, U ...
. In May 2005, he received the ACM Sigcomm lifetime award. In 2012, Mockapetris was inducted into the
Internet Hall of Fame The Internet Hall of Fame is an honorary lifetime achievement award administered by the Internet Society (ISOC) in recognition of individuals who have made significant contributions to the development and advancement of the Internet. Overview ...
by the
Internet Society The Internet Society (ISOC) is an American non-profit advocacy organization founded in 1992 with local chapters around the world. It has offices in Reston, Virginia, United States, and Geneva, Switzerland. Organization The Internet Society ...
.


David Clark

David D. Clark (born 1944) is an American
computer scientist A computer scientist is a scientist who specializes in the academic study of computer science. Computer scientists typically work on the theoretical side of computation. Although computer scientists can also focus their work and research on ...
. He was acknowledged in the specification of TCP version 4 in September 1978. During the period of tremendous growth and expansion of the Internet from 1981 to 1989, he acted as chief protocol architect in the development of the Internet, and chaired the Internet Activities Board, which later became the
Internet Architecture Board The Internet Architecture Board (IAB) is a committee of the Internet Engineering Task Force (IETF) and an advisory body of the Internet Society (ISOC). Its responsibilities include architectural oversight of IETF activities, Internet Standards ...
. He is currently a senior research scientist at the
MIT Computer Science and Artificial Intelligence Laboratory Computer Science and Artificial Intelligence Laboratory (CSAIL) is a research institute at the Massachusetts Institute of Technology (MIT) formed by the 2003 merger of the Laboratory for Computer Science (LCS) and the Artificial Intelligence Lab ...
. In 1990 Clark was awarded the ACM SIGCOMM Award "in recognition of his major contributions to Internet protocol and architecture." In 1998 he received the IEEE Richard W. Hamming Medal "for leadership and major contributions to the architecture of the Internet as a universal information medium". In 2001 he was inducted as a Fellow of the
Association for Computing Machinery The Association for Computing Machinery (ACM) is a US-based international learned society for computing. It was founded in 1947 and is the world's largest scientific and educational computing society. The ACM is a non-profit professional membe ...
for "his preeminent role in the development of computer communication and the Internet, including architecture, protocols, security, and telecommunications policy". In 2001, he was awarded the Telluride Tech Festival Award of Technology in Telluride, Colorado, and in 2011 the Lifetime Achievement Award from the Oxford Internet Institute, University of Oxford "in recognition of his intellectual and institutional contributions to the advance of the Internet."


Dave Crocker

The younger brother of Steve was awarded the IEEE Internet Award in 2004, together with Ray Tomlinson for their work on network messaging – the invention of email. Dave started networking with
Arpanet The Advanced Research Projects Agency Network (ARPANET) was the first wide-area packet-switched network with distributed control and one of the first computer networks to implement the TCP/IP protocol suite. Both technologies became the tec ...
and is still active in development.


Susan Estrada

Susan Estrada founded CERFnet, one of the original regional IP networks, in 1988. Through her leadership and collaboration with PSINet and
UUnet UUNET Technologies, Inc., formerly UUNET Communications Services, was an American commercial Internet service provider. Founded in 1987, it was one of the first and largest commercial ISPs and one of the early Tier 1 networks. It was based in ...
, Estrada helped form the interconnection enabling the first commercial Internet traffic via the Commercial Internet Exchange. She wrote ''Connecting to the Internet'' in 1993 and she was inducted to the Internet Hall of Fame in 2014. She is on the board of trustees of the
Internet Society The Internet Society (ISOC) is an American non-profit advocacy organization founded in 1992 with local chapters around the world. It has offices in Reston, Virginia, United States, and Geneva, Switzerland. Organization The Internet Society ...
.


Dave Mills

David L. Mills (1938–2024) was an American
computer engineer Computer engineering (CE, CoE, or CpE) is a branch of engineering specialized in developing computer hardware and software. It integrates several fields of electrical engineering, electronics engineering and computer science. Computer engine ...
. Mills earned his
PhD A Doctor of Philosophy (PhD, DPhil; or ) is a terminal degree that usually denotes the highest level of academic achievement in a given discipline and is awarded following a course of graduate study and original research. The name of the deg ...
in Computer and Communication Sciences from the
University of Michigan The University of Michigan (U-M, U of M, or Michigan) is a public university, public research university in Ann Arbor, Michigan, United States. Founded in 1817, it is the oldest institution of higher education in the state. The University of Mi ...
in 1971. While at Michigan he worked on the ARPA sponsored Conversational Use of Computers (CONCOMP) project and developed DEC PDP-8 based hardware and software to allow terminals to be connected over phone lines to an
IBM System/360 The IBM System/360 (S/360) is a family of mainframe computer systems announced by IBM on April 7, 1964, and delivered between 1965 and 1978. System/360 was the first family of computers designed to cover both commercial and scientific applicati ...
mainframe computer A mainframe computer, informally called a mainframe or big iron, is a computer used primarily by large organizations for critical applications like bulk data processing for tasks such as censuses, industry and consumer statistics, enterprise ...
. Mills was the chairman of the Gateway Algorithms and Data Structures Task Force (GADS) and the first chairman of the Internet Architecture Task Force. He invented the
Network Time Protocol The Network Time Protocol (NTP) is a networking protocol for clock synchronization between computer systems over packet-switched, variable-Network latency, latency data networks. In operation since before 1985, NTP is one of the oldest Intern ...
(1981), the DEC LSI-11 based fuzzball router that was used for the 56 kbit/s
NSFNET The National Science Foundation Network (NSFNET) was a program of coordinated, evolving projects sponsored by the National Science Foundation (NSF) from 1985 to 1995 to promote advanced research and education networking in the United States. The ...
(1985), the
Exterior Gateway Protocol An exterior gateway protocol is an IP routing protocol used to exchange routing information between autonomous systems. This exchange is crucial for communications across the Internet. Notable exterior gateway protocols include Exterior Gatewa ...
(1984), and inspired the author of ping (1983). He was an emeritus professor at the
University of Delaware The University of Delaware (colloquially known as UD, UDel, or Delaware) is a Statutory college#Delaware, privately governed, state-assisted Land-grant university, land-grant research university in Newark, Delaware, United States. UD offers f ...
following his retirement in 2008 after 22 years of teaching for the university. In 1999 he was inducted as a
Fellow A fellow is a title and form of address for distinguished, learned, or skilled individuals in academia, medicine, research, and industry. The exact meaning of the term differs in each field. In learned society, learned or professional society, p ...
of the
Association for Computing Machinery The Association for Computing Machinery (ACM) is a US-based international learned society for computing. It was founded in 1947 and is the world's largest scientific and educational computing society. The ACM is a non-profit professional membe ...
, and in 2002, as a Fellow of the
Institute of Electrical and Electronics Engineers The Institute of Electrical and Electronics Engineers (IEEE) is an American 501(c)(3) public charity professional organization for electrical engineering, electronics engineering, and other related disciplines. The IEEE has a corporate office ...
(IEEE). In 2008, Mills was elected to the
National Academy of Engineering The National Academy of Engineering (NAE) is an American Nonprofit organization, nonprofit, NGO, non-governmental organization. It is part of the National Academies of Sciences, Engineering, and Medicine (NASEM), along with the National Academ ...
(NAE). In 2013 he received the IEEE Internet Award "For significant leadership and sustained contributions in the research, development, standardization, and deployment of quality time synchronization capabilities for the Internet."


Radia Perlman

Radia Joy Perlman (born 1951) is the software designer and network engineer who developed the
Spanning Tree Protocol The Spanning Tree Protocol (STP) is a network protocol that builds a loop-free logical topology for Ethernet networks. The basic function of STP is to prevent bridge loops and the broadcast radiation that results from them. Spanning tree al ...
which is fundamental to the operation of
network bridge A network bridge is a computer networking device that creates a single, aggregate network from multiple communication networks or network segments. This function is called network bridging. Bridging is distinct from routing. Routing allows mu ...
s. She also played an important role in the development of link-state routing protocols such as IS-IS (which had a significant influence on OSPF). In 2010 she received the ACM SIGCOMM Award "for her fundamental contributions to the Internet routing and bridging protocols that we all use and take for granted every day."


Dennis M. Jennings

Dennis M. Jennings is an Irish physicist, academic, Internet pioneer, and venture capitalist. In 1984, the
National Science Foundation The U.S. National Science Foundation (NSF) is an Independent agencies of the United States government#Examples of independent agencies, independent agency of the Federal government of the United States, United States federal government that su ...
(NSF) began construction of several regional
supercomputing A supercomputer is a type of computer with a high level of performance as compared to a general-purpose computer. The performance of a supercomputer is commonly measured in floating-point operations per second (FLOPS) instead of million instruc ...
centers to provide very high-speed computing resources for the US research community. In 1985 NSF hired Jennings to lead the establishment of the
National Science Foundation Network The National Science Foundation Network (NSFNET) was a program of coordinated, evolving projects sponsored by the National Science Foundation (NSF) from 1985 to 1995 to promote advanced research and education networking in the United States. The ...
(NSFNET) to link five of the super-computing centers to enable sharing of resources and information. Jennings made three critical decisions that shaped the subsequent development of NSFNET: * that it would be a general-purpose research network, not limited to connection of the supercomputers; * it would act as the backbone for connection of regional networks at each supercomputing site; and * it would use the
ARPANET The Advanced Research Projects Agency Network (ARPANET) was the first wide-area packet-switched network with distributed control and one of the first computer networks to implement the TCP/IP protocol suite. Both technologies became the tec ...
's TCP/IP protocols. Jennings was also actively involved in the start-up of research networks in Europe ( European Academic Research Network, EARN - President; EBONE - Board member) and Ireland ( HEAnet - initial proposal and later board member). He chaired the Board and General Assembly of the Council of European National Top Level Domain Registries (CENTR) from 1999 to early 2001 and was actively involved in the start-up of the
Internet Corporation for Assigned Names and Numbers The Internet Corporation for Assigned Names and Numbers (ICANN ) is a global multistakeholder group and nonprofit organization headquartered in the United States responsible for coordinating the maintenance and procedures of several dat ...
(ICANN). He was a member of the ICANN Board from 2007 to 2010, serving as vice-chair in 2009–2010."Ireland's real net pioneer"
''Independent.ie'', 4 October 2007
In April 2014 Jennings was inducted into the Internet Hall of Fame.


Steve Wolff

Stephen "Steve" Wolff participated in the development of
ARPANET The Advanced Research Projects Agency Network (ARPANET) was the first wide-area packet-switched network with distributed control and one of the first computer networks to implement the TCP/IP protocol suite. Both technologies became the tec ...
while working for the U.S. Army."Stephen Wolff–Hustling for Innovation"
, Charles Waltner, ''News@Cisco'', 30 July 2002
In 1986 he became Division Director for Networking and Communications Research and Infrastructure at the
National Science Foundation The U.S. National Science Foundation (NSF) is an Independent agencies of the United States government#Examples of independent agencies, independent agency of the Federal government of the United States, United States federal government that su ...
(NSF) where he managed the development of
NSFNET The National Science Foundation Network (NSFNET) was a program of coordinated, evolving projects sponsored by the National Science Foundation (NSF) from 1985 to 1995 to promote advanced research and education networking in the United States. The ...
. He also conceived the Gigabit Testbed, a joint NSF-
DARPA The Defense Advanced Research Projects Agency (DARPA) is a research and development agency of the United States Department of Defense responsible for the development of emerging technologies for use by the military. Originally known as the Adva ...
project to prove the feasibility of IP networking at gigabit speeds. His work at NSF transformed the fledgling internet from a narrowly focused U.S. government project into the modern
Internet The Internet (or internet) is the Global network, global system of interconnected computer networks that uses the Internet protocol suite (TCP/IP) to communicate between networks and devices. It is a internetworking, network of networks ...
with scholarly and commercial interest for the entire world. In 1994 he left NSF to join
Cisco Cisco Systems, Inc. (using the trademark Cisco) is an American multinational digital communications technology conglomerate corporation headquartered in San Jose, California. Cisco develops, manufactures, and sells networking hardware, s ...
as a technical manager in Corporate Consulting Engineering. In 2011 he became the CTO at
Internet2 Internet2 is a not-for-profit United States computer network A computer network is a collection of communicating computers and other devices, such as printers and smart phones. In order to communicate, the computers and devices must ...
. In 2002 the
Internet Society The Internet Society (ISOC) is an American non-profit advocacy organization founded in 1992 with local chapters around the world. It has offices in Reston, Virginia, United States, and Geneva, Switzerland. Organization The Internet Society ...
recognized Wolff with its Postel Award. When presenting the award, Internet Society (ISOC) President and CEO Lynn St. Amour said "…Steve helped transform the Internet from an activity that served the specific goals of the research community to a worldwide enterprise which has energized scholarship and commerce throughout the world.""Stephen Wolff Receives the Internet Society's Postel Service Award for 2002"
Internet Society, 24 June 2002
The Internet Society also recognized Wolff in 1994 for his courage and leadership in advancing the Internet.


Sally Floyd

Sally Floyd (1950–2019) was an American engineer recognized for her extensive contributions to Internet architecture and her work in identifying practical ways to control and stabilize Internet congestion."Sally Floyd Wins 2007 SIGCOMM Award"
ICSI, Sept. 2007 (last visited 7 October 2012).
She invented the random early detection active queue management scheme, which has been implemented in nearly all commercially available routers, and devised the now-common method of adding delay jitter to message timers to avoid synchronization collisions.IEEE
"Sally Floyd"
IEEE Global History Network (last visited 7 October 2012).
Floyd, with Vern Paxson, in 1997 identified the lack of knowledge of
network topology Network topology is the arrangement of the elements (Data link, links, Node (networking), nodes, etc.) of a communication network. Network topology can be used to define or describe the arrangement of various types of telecommunication networks, ...
as the major obstacle in understanding how the Internet works. This paper, "Why We Don't Know How to Simulate the Internet", was re-published as "Difficulties in Simulating the Internet" in 2001 and won the IEEE Communication Society's William R. Bennett Prize Paper Award. Floyd was also a co-author on the standard for TCP Selective acknowledgement (SACK), Explicit Congestion Notification (ECN), the Datagram Congestion Control Protocol (DCCP) and TCP Friendly Rate Control (TFRC). She received the IEEE Internet Award in 2005 and the ACM SIGCOMM Award in 2007 for her contributions to congestion control. She has been involved in the Internet Advisory Board, and, as of 2007, was one of the top-ten most cited researchers in computer science.


Van Jacobson

Van Jacobson is an American
computer scientist A computer scientist is a scientist who specializes in the academic study of computer science. Computer scientists typically work on the theoretical side of computation. Although computer scientists can also focus their work and research on ...
, best known for his work on TCP/IP network performance and scaling. His work redesigning TCP/IP's flow control algorithms ( Jacobson's algorithm) to better handle congestion is said to have saved the Internet from collapsing in the late 1980s and early 1990s. He is also known for the TCP/IP Header Compression protocol described in RFC 1144: ''Compressing TCP/IP Headers for Low-Speed Serial Links'', popularly known as Van Jacobson TCP/IP Header Compression. He is co-author of several widely used network diagnostic tools, including traceroute, tcpdump, and pathchar. He was a leader in the development of the multicast backbone (MBone) and the multimedia tools vic, vat, and wb. For his work, Jacobson received the 2001 ACM SIGCOMM Award for Lifetime Achievement,2001 SIGCOMM Award for Lifetime Achievement
to Van Jacobson "for contributions to protocol architecture and congestion control."
the 2003
IEEE The Institute of Electrical and Electronics Engineers (IEEE) is an American 501(c)(3) organization, 501(c)(3) public charity professional organization for electrical engineering, electronics engineering, and other related disciplines. The IEEE ...
Koji Kobayashi Computers and Communications Award,"Van Jacobson: 2002 IEEE Koji Kobayashi Computers and Communications Award Recipient"
IEEE web site
and was elected to the
National Academy of Engineering The National Academy of Engineering (NAE) is an American Nonprofit organization, nonprofit, NGO, non-governmental organization. It is part of the National Academies of Sciences, Engineering, and Medicine (NASEM), along with the National Academ ...
in 2006. In 2012, Jacobson was inducted into the
Internet Hall of Fame The Internet Hall of Fame is an honorary lifetime achievement award administered by the Internet Society (ISOC) in recognition of individuals who have made significant contributions to the development and advancement of the Internet. Overview ...
by the
Internet Society The Internet Society (ISOC) is an American non-profit advocacy organization founded in 1992 with local chapters around the world. It has offices in Reston, Virginia, United States, and Geneva, Switzerland. Organization The Internet Society ...
.


Tim Berners-Lee

Timothy John "Tim" Berners-Lee (born 1955) is a British
physicist A physicist is a scientist who specializes in the field of physics, which encompasses the interactions of matter and energy at all length and time scales in the physical universe. Physicists generally are interested in the root or ultimate cau ...
and
computer scientist A computer scientist is a scientist who specializes in the academic study of computer science. Computer scientists typically work on the theoretical side of computation. Although computer scientists can also focus their work and research on ...
. In 1980, while working at
CERN The European Organization for Nuclear Research, known as CERN (; ; ), is an intergovernmental organization that operates the largest particle physics laboratory in the world. Established in 1954, it is based in Meyrin, western suburb of Gene ...
, he proposed a project using
hypertext Hypertext is E-text, text displayed on a computer display or other electronic devices with references (hyperlinks) to other text that the reader can immediately access. Hypertext documents are interconnected by hyperlinks, which are typic ...
to facilitate sharing and updating information among researchers. While there, he built a prototype system named
ENQUIRE ENQUIRE was a software project written in 1980 by Tim Berners-Lee at CERN, which was the predecessor to the World Wide Web. It was a simple hypertext program that had some of the same ideas as the Web and the Semantic Web but was different in s ...
. Back at CERN in 1989 he conceived of and, in 1990, together with Robert Cailliau, created the first client and server implementations for what became the
World Wide Web The World Wide Web (WWW or simply the Web) is an information system that enables Content (media), content sharing over the Internet through user-friendly ways meant to appeal to users beyond Information technology, IT specialists and hobbyis ...
. Berners-Lee is the director of the
World Wide Web Consortium The World Wide Web Consortium (W3C) is the main international standards organization for the World Wide Web. Founded in 1994 by Tim Berners-Lee, the consortium is made up of member organizations that maintain full-time staff working together in ...
(W3C), a standards organization which oversees and encourages the Web's continued development, co-director of the Web Science Trust, and founder of the World Wide Web Foundation. In 1994, Berners-Lee became one of only six members of the World Wide Web Hall of Fame. In 2004, Berners-Lee was
knighted A knight is a person granted an honorary title of a knighthood by a head of state (including the pope) or representative for service to the monarch, the church, or the country, especially in a military capacity. The concept of a knighthood ...
by Queen
Elizabeth II Elizabeth II (Elizabeth Alexandra Mary; 21 April 19268 September 2022) was Queen of the United Kingdom and other Commonwealth realms from 6 February 1952 until Death and state funeral of Elizabeth II, her death in 2022. ...
for his pioneering work. In April 2009, he was elected a foreign associate of the
United States National Academy of Sciences The National Academy of Sciences (NAS) is a United States nonprofit, non-governmental organization. NAS is part of the National Academies of Sciences, Engineering, and Medicine, along with the National Academy of Engineering (NAE) and the Nati ...
, based in Washington, D.C. In 2012, Berners-Lee was inducted into the
Internet Hall of Fame The Internet Hall of Fame is an honorary lifetime achievement award administered by the Internet Society (ISOC) in recognition of individuals who have made significant contributions to the development and advancement of the Internet. Overview ...
by the
Internet Society The Internet Society (ISOC) is an American non-profit advocacy organization founded in 1992 with local chapters around the world. It has offices in Reston, Virginia, United States, and Geneva, Switzerland. Organization The Internet Society ...
.


Robert Cailliau

Robert Cailliau (, born 1947), is a Belgian informatics engineer and
computer scientist A computer scientist is a scientist who specializes in the academic study of computer science. Computer scientists typically work on the theoretical side of computation. Although computer scientists can also focus their work and research on ...
who, working with
Tim Berners-Lee Sir Timothy John Berners-Lee (born 8 June 1955), also known as TimBL, is an English computer scientist best known as the inventor of the World Wide Web, the HTML markup language, the URL system, and HTTP. He is a professorial research fellow a ...
and
Nicola Pellow Nicola Pellow is an English mathematician and information scientist who was one of the nineteen members of the ''WWW Project'' at CERN working with Tim Berners-Lee. She joined the project in November 1990, while an undergraduate maths student en ...
at
CERN The European Organization for Nuclear Research, known as CERN (; ; ), is an intergovernmental organization that operates the largest particle physics laboratory in the world. Established in 1954, it is based in Meyrin, western suburb of Gene ...
, developed the
World Wide Web The World Wide Web (WWW or simply the Web) is an information system that enables Content (media), content sharing over the Internet through user-friendly ways meant to appeal to users beyond Information technology, IT specialists and hobbyis ...
. In 2012 he was inducted into the
Internet Hall of Fame The Internet Hall of Fame is an honorary lifetime achievement award administered by the Internet Society (ISOC) in recognition of individuals who have made significant contributions to the development and advancement of the Internet. Overview ...
by the
Internet Society The Internet Society (ISOC) is an American non-profit advocacy organization founded in 1992 with local chapters around the world. It has offices in Reston, Virginia, United States, and Geneva, Switzerland. Organization The Internet Society ...
.


Simon S. Lam

Simon S. Lam (born 1947) is an American computer scientist. He was inducted into the Internet Hall of Fame (2023) by the
Internet Society The Internet Society (ISOC) is an American non-profit advocacy organization founded in 1992 with local chapters around the world. It has offices in Reston, Virginia, United States, and Geneva, Switzerland. Organization The Internet Society ...
for “inventing secure sockets in 1991 and implementing the first secure sockets layer, named SNP, in 1993.” In 1990, while a professor at
University of Texas at Austin The University of Texas at Austin (UT Austin, UT, or Texas) is a public university, public research university in Austin, Texas, United States. Founded in 1883, it is the flagship institution of the University of Texas System. With 53,082 stud ...
, he was inspired after writing a paper on formal semantics of upper and lower interfaces of a protocol layer and he conceived the idea of a new security sublayer in the Internet protocol stack. The new sublayer, at the bottom of the Application layer, would make use of transport layer sockets for data transfer and offer corresponding secure sockets to application processes. This way, application programmers do not need to know much about implementation details for security. Also, the upper interface of the sublayer would enable implementation changes in the future. Lam's idea of a sublayer which offers a “secure sockets interface” to applications was novel and a radical departure from contemporary security research for Internet applications (e.g., MIT's Kerberos, 1988–1992). Lam wrote a proposal to the NSA University Research Program, which was funded for two years. By early 1993, Lam, with the help of 3 graduate students (Woo, Bindignavle, and Su), designed and implemented the first secure sockets layer, named Secure Network Programming (SNP). They demonstrated SNP to their NSA program manager when he visited UT-Austin in June 1993. They also published and presented SNP in the
USENIX USENIX is an American 501(c)(3) nonprofit membership organization based in Berkeley, California and founded in 1975 that supports advanced computing systems, operating system (OS), and computer networking research. It organizes several confe ...
Summer Technical Conference on June 8, 1994, including its architecture, system design, and performance evaluation results to demonstrate its efficiency and practicality SNP was created for Internet applications in general, concurrently and independently of the invention and development of WWW, which had only dozens of servers worldwide in early 1993. Subsequent secure sockets layers, SSL and TLS, developed years later, follow the same architecture and key ideas of SNP. Today's TLS 1.3 is used for all
e-commerce E-commerce (electronic commerce) refers to commercial activities including the electronic buying or selling products and services which are conducted on online platforms or over the Internet. E-commerce draws on technologies such as mobile co ...
applications (banking, shopping, etc.), for email, and many other Internet applications. Lam and his students won the 2004
ACM Software System Award The ACM Software System Award is an annual award that honors people or an organization "for developing a software system that has had a lasting influence, reflected in contributions to concepts, in commercial acceptance, or both". It is awarded b ...
for SNP. He received the 2004 ACM SIGCOMM Award for lifetime contribution to the field of communication networks. He was inducted into the
National Academy of Engineering The National Academy of Engineering (NAE) is an American Nonprofit organization, nonprofit, NGO, non-governmental organization. It is part of the National Academies of Sciences, Engineering, and Medicine (NASEM), along with the National Academ ...
in 2007.


Marc Andreessen

Marc L. Andreessen (born 1971) is an American
software engineer Software engineering is a branch of both computer science and engineering focused on designing, developing, testing, and maintaining software applications. It involves applying engineering principles and computer programming expertise to develop ...
,
entrepreneur Entrepreneurship is the creation or extraction of economic value in ways that generally entail beyond the minimal amount of risk (assumed by a traditional business), and potentially involving values besides simply economic ones. An entreprene ...
, and
investor An investor is a person who allocates financial capital with the expectation of a future Return on capital, return (profit) or to gain an advantage (interest). Through this allocated capital the investor usually purchases some species of pr ...
. Working with Eric Bina while at NCSA, he co-authored
Mosaic A mosaic () is a pattern or image made of small regular or irregular pieces of colored stone, glass or ceramic, held in place by plaster/Mortar (masonry), mortar, and covering a surface. Mosaics are often used as floor and wall decoration, and ...
, the first widely used
web browser A web browser, often shortened to browser, is an application for accessing websites. When a user requests a web page from a particular website, the browser retrieves its files from a web server and then displays the page on the user's scr ...
. He is also co-founder of
Netscape Communications Corporation Netscape Communications Corporation (originally Mosaic Communications Corporation) was an American independent computer services company with headquarters in Mountain View, California, and then Dulles, Virginia. Its Netscape (web browser), Nets ...
.


Eric Bina

Eric J. Bina (born 1964) is an American
computer programmer A programmer, computer programmer or coder is an author of computer source code someone with skill in computer programming. The professional titles ''software developer'' and ''software engineer'' are used for jobs that require a progr ...
. In 1993, together with
Marc Andreessen Marc Lowell Andreessen ( ; born July 9, 1971) is an American businessman and former software engineer. He is the co-author of Mosaic, the first widely used web browser with a graphical user interface; co-founder of Netscape; and co-founder and ...
, he authored the first version of
Mosaic A mosaic () is a pattern or image made of small regular or irregular pieces of colored stone, glass or ceramic, held in place by plaster/Mortar (masonry), mortar, and covering a surface. Mosaics are often used as floor and wall decoration, and ...
while working at NCSA at the
University of Illinois at Urbana–Champaign The University of Illinois Urbana-Champaign (UIUC, U of I, Illinois, or University of Illinois) is a public land-grant research university in the Champaign–Urbana metropolitan area, Illinois, United States. Established in 1867, it is the f ...
. Mosaic is famed as the first
killer application A killer application (often shortened to killer app) is any software that is so necessary or desirable that it proves the core value of some larger technology, such as its host computer hardware, video game console, software platform, or operatin ...
that popularized the Internet. He is also a co-founder of
Netscape Communications Corporation Netscape Communications Corporation (originally Mosaic Communications Corporation) was an American independent computer services company with headquarters in Mountain View, California, and then Dulles, Virginia. Its Netscape (web browser), Nets ...
.


Noel Chiappa


Stephen Kent


David Reed


Yngvar Lundh


Pål Spilling


Bob Braden


Scott Shenker

Scott Shenker received the IEEE Internet Award in 2006 for contributions to the study of
resource sharing In computing, a shared resource, or network share, is a computer resource made available from one host to other hosts on a computer network. It is a device or piece of information on a computer that can be remotely accessed from another compu ...
.


Lixia Zhang

Lixia Zhang received the IEEE Internet Award in 2009 for Internet architecture and modeling.


Stephen Deering

Stephen Deering received the IEEE Internet Award in 2010 for
IP multicast IP multicast is a method of sending Internet Protocol (IP) datagrams to a group of interested receivers in a single transmission. It is the IP-specific form of multicast and is used for streaming media and other network applications. It uses speci ...
ing and
IPv6 Internet Protocol version 6 (IPv6) is the most recent version of the Internet Protocol (IP), the communication protocol, communications protocol that provides an identification and location system for computers on networks and routes traffic ...
.


Jun Murai

Jun Murai is a professor at
Keio University , abbreviated as or , is a private university, private research university located in Minato, Tokyo, Japan. It was originally established as a school for Rangaku, Western studies in 1858 in Edo. It was granted university status in 1920, becomi ...
. He is the founder of JUNET and the WIDE Project. Murai received the IEEE Internet Award in 2011 for leadership in the development of the global Internet, especially in Asia. He was inducated into the
Internet Hall of Fame The Internet Hall of Fame is an honorary lifetime achievement award administered by the Internet Society (ISOC) in recognition of individuals who have made significant contributions to the development and advancement of the Internet. Overview ...
in 2013, recognizing his administrative and co-ordination efforts in establishing Internet connectivity in Japan, and serving as President of Japan Network Information Center.


Mark Handley

Mark Handley is Professor of Networked Systems in the Department of Computer Science of
University College London University College London (Trade name, branded as UCL) is a Public university, public research university in London, England. It is a Member institutions of the University of London, member institution of the Federal university, federal Uni ...
, where he leads the Networks Research Group. He received the IEEE Internet Award in 2012 for exceptional contributions to the advancement of Internet technology for network architecture, mobility, and/or end-use applications.


Jon Crowcroft

Jon Crowcroft is the Marconi Professor of Communications Systems in the Department of Computer Science and Technology, University of Cambridge. He received the IEEE Internet Award in 2014 for contributions to research in and teaching of Internet protocols, including multicast, transport, quality of service, security, mobility, and opportunistic networking.


KC Claffy

KC Claffy s director of the Center for Applied Internet Data Analysis at the
University of California, San Diego The University of California, San Diego (UC San Diego in communications material, formerly and colloquially UCSD) is a public university, public Land-grant university, land-grant research university in San Diego, California, United States. Es ...
. She received the IEEE Internet Award in 2015 for seminal contributions to the field of Internet measurement, including security and network data analysis, and for distinguished leadership in and service to the Internet community by providing open-access data and tools. In 2017 she was awarded the Jonathan B. Postel Service Award and inducted into the
Internet Hall of Fame The Internet Hall of Fame is an honorary lifetime achievement award administered by the Internet Society (ISOC) in recognition of individuals who have made significant contributions to the development and advancement of the Internet. Overview ...
in 2019.


Vern Paxson

Vern Paxson is a professor of
computer science Computer science is the study of computation, information, and automation. Computer science spans Theoretical computer science, theoretical disciplines (such as algorithms, theory of computation, and information theory) to Applied science, ...
at the
University of California, Berkeley The University of California, Berkeley (UC Berkeley, Berkeley, Cal, or California), is a Public university, public Land-grant university, land-grant research university in Berkeley, California, United States. Founded in 1868 and named after t ...
. He is an active member of the
Internet Engineering Task Force The Internet Engineering Task Force (IETF) is a standards organization for the Internet standard, Internet and is responsible for the technical standards that make up the Internet protocol suite (TCP/IP). It has no formal membership roster ...
(IETF) community and served as the chair of the IRTF from 2001 until 2005. From 1998 to 1999 he served on the IESG as Transport Area Director for the IETF. In 2006 Paxson was inducted as a Fellow of the Association for Computing Machinery (ACM). The ACM's Special Interest Group on Data Communications (SIGCOMM) gave Paxson its 2011 award, "for his seminal contributions to the fields of Internet measurement and Internet security, and for distinguished leadership and service to the Internet community." The annual SIGCOMM Award recognizes lifetime contribution to the field of communication networks. He received the IEEE Internet Award in 2015 for seminal contributions to the field of Internet measurement, including security and network data analysis, and for distinguished leadership in and service to the Internet community by providing open-access data and tools.


Henning Schulzrinne

Henning Schulzrinne received the IEEE Internet Award in 2016.


Deborah Estrin

Deborah Estrin received the IEEE Internet Award in 2017.


Ramesh Govindan

Ramesh Govindan received the IEEE Internet Award in 2018.


Jennifer Rexford

Jennifer Rexford received the IEEE Internet Award in 2019.


Eve Schooler

Eve Schooler and Stephen Casner received the IEEE Internet Award in 2020 for contributions to Internet multimedia standards and protocols.


Ian Foster

Ian Foster received the IEEE Internet Award in 2023.


Carl Kesselman

Carl Kesselman received the IEEE Internet Award in 2023.


Other Internet pioneers

Some other people, who have made notable contributions to the development of Internet but do not meet the criteria defined at the top of the article, include the following.


Wesley Clark

Wesley Clark (1927–2016) had a key insight in the planning for the
ARPANET The Advanced Research Projects Agency Network (ARPANET) was the first wide-area packet-switched network with distributed control and one of the first computer networks to implement the TCP/IP protocol suite. Both technologies became the tec ...
. In April 1967, he suggested to Bob Taylor and Larry Roberts the idea of using separate small computers (later named
Interface Message Processor The Interface Message Processor (IMP) was the packet switching node used to interconnect participant networks to the ARPANET from the late 1960s to 1989. It was the first generation of gateways, which are known today as routers. An IMP was a r ...
s) as a way of forming a message switching network and reducing load on the local computers.


Severo Ornstein

Severo Ornstein (born 1930) was part of the
Bolt, Beranek and Newman Raytheon BBN (originally Bolt, Beranek and Newman, Inc.) is an American research and development company based in Cambridge, Massachusetts. In 1966, the Franklin Institute awarded the firm the Frank P. Brown Medal, in 1999 BBN received the ...
(BBN) team that wrote the winning proposal submitted in 1968 to ARPA for the
ARPANET The Advanced Research Projects Agency Network (ARPANET) was the first wide-area packet-switched network with distributed control and one of the first computer networks to implement the TCP/IP protocol suite. Both technologies became the tec ...
. He was responsible for the design of the communication interfaces and other special hardware for the
Interface Message Processor The Interface Message Processor (IMP) was the packet switching node used to interconnect participant networks to the ARPANET from the late 1960s to 1989. It was the first generation of gateways, which are known today as routers. An IMP was a r ...
(IMP).


William Crowther

William Crowther (born 1936) was part of the original BBN IMP team. He implemented a distributed distance vector routing system for the ARPAnet.


Michel Elie

Michel Elie (born 1961) was a research assistant at UCLA who participated in the original Arpanet project. He later worked on Louis Pouzin's CYCLADES project, as well as co-authoring a number of early publications and INWG notes on internetworking.


David Boggs

David Boggs (1950–2022) worked on internetworking at
XEROX PARC Future Concepts division (formerly Palo Alto Research Center, PARC and Xerox PARC) is a research and development company in Palo Alto, California. It was founded in 1969 by Jacob E. "Jack" Goldman, chief scientist of Xerox Corporation, as a div ...
. He participated in the initial design of TCP during 1973–74.


Sylvia Wilbur

Sylvia B. Wilbur (born 1938) was a British computer scientist at University College London who programed the local node for the ARPANET connection to British academic networks, was one of the first to exchange email in Britain in 1974, and became a leading researcher on
computer-supported cooperative work Computer-supported cooperative work (CSCW) is the study of how people utilize technology collaboratively, often towards a shared goal. CSCW addresses how computer systems can support collaborative activity and coordination. More specifically, the ...
.


Joyce K. Reynolds

Joyce K. Reynolds (1952–2015) was an American
computer scientist A computer scientist is a scientist who specializes in the academic study of computer science. Computer scientists typically work on the theoretical side of computation. Although computer scientists can also focus their work and research on ...
and served as part of the editorial team of the RFC series from 1987 to 2006. She performed the
IANA The Internet Assigned Numbers Authority (IANA) is a standards organization that oversees global IP address allocation, autonomous system number allocation, root zone management in the Domain Name System (DNS), media types, and other Internet P ...
function with
Jon Postel Jonathan Bruce Postel (; August 6, 1943 – October 16, 1998) was an American computer scientist who made many significant contributions to the development of the Internet, particularly with respect to Internet Standard, standards. He is known p ...
until this was transferred to
ICANN The Internet Corporation for Assigned Names and Numbers (ICANN ) is a global multistakeholder group and nonprofit organization headquartered in the United States responsible for coordinating the maintenance and procedures of several dat ...
, then worked with ICANN in this role until 2001, while remaining an employee of ISI. As Area Director of the User Services area, she was a member of the
Internet Engineering Steering Group The Internet Engineering Task Force (IETF) is a standards organization for the Internet and is responsible for the technical standards that make up the Internet protocol suite (TCP/IP). It has no formal membership roster or requirements and ...
of the
IETF The Internet Engineering Task Force (IETF) is a standards organization for the Internet standard, Internet and is responsible for the technical standards that make up the Internet protocol suite (TCP/IP). It has no formal membership roster ...
from 1990 to March 1998. Together with Bob Braden, she received the 2006 Postel Award in recognition of her services to the Internet. She is mentioned, along with a brief biography, in RFC 1336, ''Who's Who in the Internet'' (1992).


Mark P. McCahill

Mark P. McCahill (born 1956) is an American programmer and systems architect. While working at the
University of Minnesota The University of Minnesota Twin Cities (historically known as University of Minnesota) is a public university, public Land-grant university, land-grant research university in the Minneapolis–Saint Paul, Twin Cities of Minneapolis and Saint ...
he led the development of the
Gopher Pocket gophers, commonly referred to simply as gophers, are burrowing rodents of the family Geomyidae. The roughly 41 speciesSearch results for "Geomyidae" on thASM Mammal Diversity Database are all endemic to North and Central America. They ar ...
protocol (1991), the effective predecessor of the
World Wide Web The World Wide Web (WWW or simply the Web) is an information system that enables Content (media), content sharing over the Internet through user-friendly ways meant to appeal to users beyond Information technology, IT specialists and hobbyis ...
, and contributed to the development and popularization of a number of other Internet technologies from the 1980s.


Nicola Pellow

Nicola Pellow, one of the nineteen members of the ''WWW Project'' at
CERN The European Organization for Nuclear Research, known as CERN (; ; ), is an intergovernmental organization that operates the largest particle physics laboratory in the world. Established in 1954, it is based in Meyrin, western suburb of Gene ...
working with Tim Berners-Lee, is recognized for developing the first cross-platform web browser,
Line Mode Browser The Line Mode Browser (also known as LMB, WWWLib, or just www) is the second web browser ever created. The browser was the first demonstrated to be portable to several different operating systems. Operated from a simple command-line interface, ...
, that displayed web-pages on dumb terminals and was released in May 1991. She joined the project in November 1990, while an undergraduate math student enrolled in a sandwich course at Leicester Polytechnic (now
De Montfort University De Montfort University Leicester (DMU) is a public university in the city of Leicester, England. It was established in accordance with the Further and Higher Education Act 1992, Further and Higher Education Act in 1992 as a degree awarding body ...
). She left CERN at the end of August 1991, but returned after graduating in 1992, and worked with Robert Cailliau on MacWWW, the first web browser for the
classic Mac OS Mac OS (originally System Software; retronym: Classic Mac OS) is the series of operating systems developed for the Mac (computer), Macintosh family of personal computers by Apple Computer, Inc. from 1984 to 2001, starting with System 1 and end ...
.


See also

*
History of the Internet The history of the Internet originated in the efforts of scientists and engineers to build and interconnect computer networks. The Internet protocol suite, Internet Protocol Suite, the set of rules used to communicate between networks and devi ...
*
History of email History is the systematic study of the past, focusing primarily on the human past. As an academic discipline, it analyses and interprets evidence to construct narratives about what happened and explain why it happened. Some theorists categ ...
* History of hypertext * History of the World Wide Web * List of Internet entrepreneurs * Protocol Wars *
Internet Hall of Fame The Internet Hall of Fame is an honorary lifetime achievement award administered by the Internet Society (ISOC) in recognition of individuals who have made significant contributions to the development and advancement of the Internet. Overview ...


References


Sources

*


External links


Internet Hall of Fame
established by the
Internet Society The Internet Society (ISOC) is an American non-profit advocacy organization founded in 1992 with local chapters around the world. It has offices in Reston, Virginia, United States, and Geneva, Switzerland. Organization The Internet Society ...
in April 2012. *
"Past IESG Members and IETF Chairs"
IETF web site

from the IAB web site includes historical lists of IAB Members, IAB Chairs, IAB Ex-Officio and Liaison Members (IETF Chairs), IRTF Chairs, RFC Editors, and much more historical information.
"Internet Pioneers"
web pages a
ibiblio.org
a collaboration of the School of Information and Library Science and the School of Journalism and Mass Communication at the University of North Carolina at Chapel Hill.
"Pioneers Gallery"
, from the Who Is Who in the Internet World (WiWiW) web site.
"The Greatest Internet Pioneers You Never Heard Of: The Story of Erwise and Four Finns Who Showed the Way to the Web Browser"
Juha-Pekka Tikka, 3 March 2009, Xconomy web page.


Oral histories

* Focuses on Kahn's role in the development of computer networking from 1967 through the early 1980s. Beginning with his work at
Bolt Beranek and Newman Raytheon BBN (originally Bolt, Beranek and Newman, Inc.) is an American research and development company based in Cambridge, Massachusetts. In 1966, the Franklin Institute awarded the firm the Frank P. Brown Medal, in 1999 BBN received the ...
(BBN), Kahn discusses his involvement as the ARPANET proposal was being written and then implemented, and his role in the public demonstration of the ARPANET. The interview continues into Kahn's involvement with networking when he moves to IPTO in 1972, where he was responsible for the administrative and technical evolution of the ARPANET, including programs in packet radio, the development of a new network protocol (TCP/IP), and the switch to TCP/IP to connect multiple networks. * Cerf describes his involvement with the ARPA network, and his relationships with Bolt Beranek and Newman, Robert Kahn, Lawrence Roberts, and the Network Working Group. * Baran describes his work at RAND, and discusses his interaction with the group at ARPA who were responsible for the later development of the ARPANET. * Kleinrock discusses his work on the ARPANET. * The interview focuses on Robert's work at the Information Processing Techniques Office (IPTO) at ARPA including discussion of ARPA and IPTO support of research in computer science, computer networks, and artificial intelligence, the ARPANET, the involvement of universities with ARPA and IPTO, J. C. R. Licklider, Ivan Sutherland, Steve Lukasik, Wesley Clark, as well as the development of computing at the Massachusetts Institute of Technology and Lincoln Laboratory. * Focuses on McCahill's work at the University of Minnesota where he led the team that created Gopher, the popular client/server software for organizing and sharing information on the Internet as well as his work on development of Pop Mail, Gopher VR, Forms Nirvana, the Electronic Grants Management System, and the University of Minnesota Portal. {{DEFAULTSORT:Internet Pioneers History of the Internet Lists of computer scientists People in information technology