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W. Richard Stevens
William Richard (Rich) Stevens (February 5, 1951September 1, 1999) was a Northern Rhodesia-born American author of computer science books, in particular books on UNIX and TCP/IP. Biography Richard Stevens was born in 1951 in Luanshya, Northern Rhodesia (now Zambia), where his father worked for the copper industry. The family later moved to Salt Lake City, Hurley, New Mexico, Washington, D.C. and Phalaborwa, South Africa. Stevens attended Fishburne Military School in Waynesboro, Virginia. He received a bachelor's degree in Aerospace Engineering from the University of Michigan in 1973 and both a master's degree (in 1978) and PhD (in 1982) in Systems Engineering from the University of Arizona. He moved to Tucson in 1975 where he was employed at Kitt Peak National Observatory as a computer programmer until 1982. From 1982 until 1990 he was Vice President of Computing Services at Health Systems International in New Haven, Connecticut. Stevens moved back to Tucson in 1990 where he pur ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Luanshya
Luanshya is a town in Zambia, in the Copperbelt Province near Ndola. It has a population of 117,579 (2008 census). Luanshya was founded in the early part of the 20th century after two prospector/explorer, William Collier shot and killed a Roan Antelope on the banks of the Luanshya River, discovering a copper deposit in the process. The antelope fell to the ground, its head resting on a rock where an exposed seam of copper ore was visible. The mining company eventually formed to exploit Collier's find was named " Roan Antelope Copper Mines Ltd". For most of the 20th century, copper was mined in great quantities at Luanshya but towards the end of the century, mining there became increasingly uneconomic, causing a severe recession in the town. There is still a fair amount of copper underground. Whether the town sees a revival in its fortunes will depend on how efficiently the copper is extracted and sold. The city is the birthplace of folk singer, John Edmond, writer A. C. Graylin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hurley, New Mexico
Hurley is a town in Grant County, New Mexico, United States. The population was 1,297 at the 2010 census, down from 1,464 in 2000. Geography Hurley is located in east-central Grant County at (32.699594, -108.128629). U.S. Route 180 passes through the town, leading north to Bayard, and southeast to Deming and Interstate 10. The Grant County Airport and the hamlet and ranch of Apache Tejo are approximately three miles south of Hurley. The large, open pit Chino Mine and its related facilities lie just to the east of Hurley. According to the United States Census Bureau, the town has a total area of , of which , or 0.36%, is water. Demographics As of the census of 2000, there were 1,464 people, 563 households, and 407 families residing in the town. The population density was 1,433.0 people per square mile (554.2/km2). There were 650 housing units at an average density of 636.2 per square mile (246.0/km2). The racial makeup of the town was 71.79% White, 0.14% African American ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Network News Transfer Protocol
The Network News Transfer Protocol (NNTP) is an application protocol used for transporting Usenet news articles (''netnews'') between news servers, and for reading/posting articles by the end user client applications. Brian Kantor of the University of California, San Diego, and Phil Lapsley of the University of California, Berkeley, wrote , the specification for the Network News Transfer Protocol, in March 1986. Other contributors included Stan O. Barber from the Baylor College of Medicine and Erik Fair of Apple Computer. Usenet was originally designed based on the UUCP network, with most article transfers taking place over direct point-to-point telephone links between news servers, which were powerful time-sharing systems. Readers and posters logged into these computers reading the articles directly from the local disk. As local area networks and Internet participation proliferated, it became desirable to allow newsreaders to be run on personal computers connected to local n ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
HTTP
The Hypertext Transfer Protocol (HTTP) is an application layer protocol in the Internet protocol suite model for distributed, collaborative, hypermedia information systems. HTTP is the foundation of data communication for the World Wide Web, where hypertext documents include hyperlinks to other resources that the user can easily access, for example by a mouse click or by tapping the screen in a web browser. Development of HTTP was initiated by Tim Berners-Lee at CERN in 1989 and summarized in a simple document describing the behavior of a client and a server using the first HTTP protocol version that was named 0.9. That first version of HTTP protocol soon evolved into a more elaborated version that was the first draft toward a far future version 1.0. Development of early HTTP Requests for Comments (RFCs) started a few years later and it was a coordinated effort by the Internet Engineering Task Force (IETF) and the World Wide Web Consortium (W3C), with work later moving to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
T/TCP
T/TCP (Transactional Transmission Control Protocol) was a variant of the Transmission Control Protocol (TCP). It was an experimental TCP extension for efficient transaction-oriented (request/response) service. It was developed to fill the gap between TCP and UDP, by Bob Braden in 1994. Its definition can be found in RFC 1644 (that obsoletes RFC 1379). It is faster than TCP and delivery reliability is comparable to that of TCP. T/TCP suffers from several major security problems as described by Charles Hannum in September 1996. It has not gained widespread popularity. RFC 1379 and RFC 1644 that define T/TCP were moved tHistoric Statusin May 2011 by RFC 6247 for security reasons. Alternatives TCP Fast Open is a more recent alternative. See also * TCP Cookie Transactions Further reading * Richard Stevens, Gary Wright, "TCP/IP Illustrated: TCP for transactions, HTTP, NNTP, and the UNIX domain protocols" (Volume 3 of TCP/IP Illustrated ''TCP/IP Illustrated'' is the name of a s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gary R
Gary may refer to: *Gary (given name), a common masculine given name, including a list of people and fictional characters with the name *Gary, Indiana, the largest city named Gary Places ;Iran *Gary, Iran, Sistan and Baluchestan Province ;United States *Gary (Tampa), Florida * Gary, Maryland *Gary, Minnesota *Gary, South Dakota *Gary, West Virginia *Gary – New Duluth, a neighborhood in Duluth, Minnesota *Gary Air Force Base, San Marcos, Texas * Gary City, Texas Ships * USS ''Gary'' (DE-61), a destroyer escort launched in 1943 * USS ''Gary'' (CL-147), scheduled to be a light cruiser, but canceled prior to construction in 1945 * USS ''Gary'' (FFG-51), a frigate, commissioned in 1984 * USS ''Thomas J. Gary'' (DE-326), a destroyer escort commissioned in 1943 People and fictional characters *Gary (surname), including a list of people with the name *Gary (rapper), South Korean rapper and entertainer *Gary (Argentine singer), Argentine singer of cuarteto songs Other uses *'' Gary: ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
New Haven
New Haven is a city in the U.S. state of Connecticut. It is located on New Haven Harbor on the northern shore of Long Island Sound in New Haven County, Connecticut and is part of the New York City metropolitan area. With a population of 134,023 as determined by the 2020 U.S. census, New Haven is the third largest city in Connecticut after Bridgeport and Stamford and the principal municipality of Greater New Haven, which had a total 2020 population of 864,835. New Haven was one of the first planned cities in the U.S. A year after its founding by English Puritans in 1638, eight streets were laid out in a four-by-four grid, creating the "Nine Square Plan". The central common block is the New Haven Green, a square at the center of Downtown New Haven. The Green is now a National Historic Landmark, and the "Nine Square Plan" is recognized by the American Planning Association as a National Planning Landmark. New Haven is the home of Yale University, New Haven's biggest taxpayer ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kitt Peak National Observatory
The Kitt Peak National Observatory (KPNO) is a United States astronomy, astronomical observatory located on Kitt Peak of the Quinlan Mountains in the Arizona-Sonoran Desert on the Tohono Oʼodham Nation, west-southwest of Tucson, Arizona. With more than twenty optical and two radio telescopes, it is one of the largest gatherings of astronomical instruments in the Earth's northern hemisphere. Kitt Peak National Observatory was founded in 1958. It is home to what was the largest solar telescope in the world, and many large astronomical telescopes of the late 20th century in the United States. The observatory was administered by the National Optical Astronomy Observatory (NOAO) from the early 1980s until 2019, after which it was overseen by NOIRLab. In June 2022, the Contreras Fire led to the evacuation of Kitt Peak. The fire reached the summit at 2 a.m. on Friday, June 17. Four non-scientific buildings, including a dormitory, were lost in the fire. As of Monday, June 20, the e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aerospace Engineering
Aerospace engineering is the primary field of engineering concerned with the development of aircraft and spacecraft. It has two major and overlapping branches: aeronautical engineering and astronautical engineering. Avionics engineering is similar, but deals with the electronics side of aerospace engineering. "Aeronautical engineering" was the original term for the field. As flight technology advanced to include vehicles operating in outer space, the broader term "aerospace engineering" has come into use. Aerospace engineering, particularly the astronautics branch, is often colloquially referred to as "rocket science". Overview Flight vehicles are subjected to demanding conditions such as those caused by changes in atmospheric pressure and temperature, with structural loads applied upon vehicle components. Consequently, they are usually the products of various technological and engineering disciplines including aerodynamics, Air propulsion, avionics, materials science, stru ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Virginia
Virginia, officially the Commonwealth of Virginia, is a state in the Mid-Atlantic and Southeastern regions of the United States, between the Atlantic Coast and the Appalachian Mountains. The geography and climate of the Commonwealth are shaped by the Blue Ridge Mountains and the Chesapeake Bay, which provide habitat for much of its flora and fauna. The capital of the Commonwealth is Richmond; Virginia Beach is the most-populous city, and Fairfax County is the most-populous political subdivision. The Commonwealth's population was over 8.65million, with 36% of them living in the Baltimore–Washington metropolitan area. The area's history begins with several indigenous groups, including the Powhatan. In 1607, the London Company established the Colony of Virginia as the first permanent English colony in the New World. Virginia's state nickname, the Old Dominion, is a reference to this status. Slave labor and land acquired from displaced native tribes fueled the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Waynesboro, Virginia
Waynesboro (formerly Flack) is an independent city in the Commonwealth of Virginia. It is a principal city of the Staunton-Waynesboro Metropolitan Statistical Area. Waynesboro is located in the Shenandoah Valley and is surrounded by Augusta County. As of the 2020 census, the population was 22,196. History Located in the British Colony of Virginia, even after the American Revolution and independence and statehood for the Commonwealth of Virginia, the areas west of the Appalachian and Blue Ridge Mountains were known as the frontier. Travel by wagon over the mountains was considered to be nearly impossible except where nature afforded some gap between them. Until after the Civil War, Jarmans Gap, only some six miles northeast of Waynesboro, was the major crossing of the Blue Ridge Mountains in that area, making Waynesboro a convenient location for a stop for many who sought to travel west. In the mid-18th century, the Waynesboro area was commonly referred to as Teasville (or ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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