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Internet Exchange Point
Internet exchange points (IXes or IXPs) are common grounds of IP networking, allowing participant Internet service providers (ISPs) to exchange data destined for their respective networks. IXPs are generally located at places with preexisting connections to multiple distinct networks, ''i.e.'', datacenters, and operate physical infrastructure ( switches) to connect their participants. Organizationally, most IXPs are each independent not-for-profit associations of their constituent participating networks (that is, the set of ISPs which participate at that IXP). The primary alternative to IXPs is private peering, where ISPs directly connect their networks to each other. IXPs reduce the portion of an ISP's traffic that must be delivered via their upstream transit providers, thereby reducing the average per-bit delivery cost of their service. Furthermore, the increased number of paths available through the IXP improves routing efficiency (by allowing routers to select short ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Packet Clearing House
Packet Clearing House (PCH) is the international nonprofit organization responsible for providing operational support and security to critical internet infrastructure, including Internet exchange points and the core of the domain name system. The organization also works in the areas of cybersecurity coordination, regulatory policy and Internet governance. Overview Packet Clearing House (PCH) was formed in 1994 by Chris Alan and Mark Kent to provide efficient regional and local network interconnection alternatives for the West Coast of the United States. It has grown to become a leading proponent of neutral independent network interconnection and provider of route-servers at major exchange points worldwide. PCH provides equipment, training, data, and operational support to organizations and individual researchers seeking to improve the quality, robustness, and Internet accessibility. , major PCH projects include * Building and supporting nearly half of the wor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
MAE-East
The MAE (later, MAE-East) was the first Internet Exchange Point (IXP). It began in 1992 with four locations in Washington, D.C., quickly extended to Vienna, Reston, and Ashburn, Virginia; and then subsequently to New York and Miami. Its name stood for "Metropolitan Area Ethernet," and was subsequently backronymed to "Metropolitan Area Exchange, East" upon the establishment of MAE-West in 1994. The MAE predated the National Information Infrastructure plan, which called for the establishment of IXPs throughout the United States. Although it initially had no single central nexus, one eventually formed in the underground parking garage of an office building in Vienna, VA. History MAE-East was originally created in 1992, primarily by Scott Yeager of Metropolitan Fiber Systems (MFS) and Rick Adams of UUNET. "A group of network providers in the Virginia area got together over beer one night and decided to connect their networks", said principal MAE-East architect Steven Feldman (MF ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
National Science Foundation
The National Science Foundation (NSF) is an independent agency of the United States government that supports fundamental research and education in all the non-medical fields of science and engineering. Its medical counterpart is the National Institutes of Health. With an annual budget of about $8.3 billion (fiscal year 2020), the NSF funds approximately 25% of all federally supported basic research conducted by the United States' colleges and universities. In some fields, such as mathematics, computer science, economics, and the social sciences, the NSF is the major source of federal backing. The NSF's director and deputy director are appointed by the President of the United States and confirmed by the United States Senate, whereas the 24 president-appointed members of the National Science Board (NSB) do not require Senate confirmation. The director and deputy director are responsible for administration, planning, budgeting and day-to-day operations of the foundation, whil ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Latency (engineering)
Latency, from a general point of view, is a time delay between the cause and the effect of some physical change in the system being observed. Lag, as it is known in gaming circles, refers to the latency between the input to a simulation and the visual or auditory response, often occurring because of network delay in online games. Latency is physically a consequence of the limited velocity at which any physical interaction can propagate. The magnitude of this velocity is always less than or equal to the speed of light. Therefore, every physical system with any physical separation (distance) between cause and effect will experience some sort of latency, regardless of the nature of the stimulation at which it has been exposed to. The precise definition of latency depends on the system being observed or the nature of the simulation. In communications, the lower limit of latency is determined by the medium being used to transfer information. In reliable two-way communication s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Latin America
Latin America or * french: Amérique Latine, link=no * ht, Amerik Latin, link=no * pt, América Latina, link=no, name=a, sometimes referred to as LatAm is a large cultural region in the Americas where Romance languages — languages derived from Latin — are predominantly spoken. The term was coined in the nineteenth century, to refer to regions in the Americas that were ruled by the Spanish Empire, Spanish, Portuguese Empire, Portuguese and French colonial empire#The Americas, French empires. The term does not have a precise definition, but it is "commonly used to describe South America, Central America, Mexico, and the islands of the Caribbean." In a narrow sense, it refers to Spanish America plus Brazil (Portuguese America). The term "Latin America" is broader than categories such as ''Hispanic America'', which specifically refers to Spanish-speaking countries; and ''Ibero-America'', which specifically refers to both Spanish and Portuguese-speaking countries while leaving ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
MAE-West
MAE-West was an Internet exchange point located on the west coast of the United States in Silicon Valley, in the South San Francisco Bay Area in California. It was established in November, 1994. Its name officially stands for "Metropolitan Area Exchange, West", although it was a humorous reference to the name of the actress Mae West and to the original MAE in the Washington DC metro area, which was thereafter known as "MAE-East." The exchange was a dual FDDI ring, bridged between two locations, one in downtown San Jose, operated by Metropolitan Fiber Systems (MFS) and catering principally to smaller networks, and the second operated by NASA at Moffett Field, to the northwest, and catering principally to larger networks, since it had annual terms (rather than the monthly terms and Service level agreement available at the MFS location) and more restrictive access policies. The MFS side was constructed by Steven Feldman, and the NASA side by Bobby Cates and Lance Tatman. Its San J ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rick Boucher
Frederick Carlyle Boucher (; born August 1, 1946) is an American politician who was the U.S. representative for from 1983 to 2011. He is a member of the Democratic Party. He was defeated in his bid for a 15th term by Republican Morgan Griffith in the 2010 elections. Early life, education and career Boucher is a native of Abingdon, Virginia, where he currently lives. He earned his BA from Roanoke College where he was a member of Kappa Alpha Order fraternity. He received his J.D. degree from the University of Virginia School of Law. He has practiced law on Wall Street initially as an associate at Milbank Tweed in the firm's New York City office, and later in Virginia. Prior to his election to Congress, he served for seven years as a member of the Senate of Virginia. He is a former member of the Law and Justice Committee of the National Conference of State Legislatures, the Board of Directors of the First Virginia Bank of Damascus, Virginia, and the Board of Directors of C ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
One Hundred Second Congress
The 102nd United States Congress was a meeting of the legislative branch of the United States federal government, composed of the United States Senate and the United States House of Representatives. It met in Washington, DC from January 3, 1991, to January 3, 1993, during the last two years of the administration of U.S. President George H. W. Bush. This is the most recent Congress where Republicans held a Senate Seat from California. The apportionment of seats in this House of Representatives was based on the 1980 United States Census. Both chambers maintained a Democratic majority. Notable events * January 17, 1991 – February 28, 1991: Persian Gulf War * May 16, 1991: Queen Elizabeth II of the United Kingdom addresses a Joint Meeting of Congress * October 15, 1991: Confirmation of Clarence Thomas Supreme Court nomination at the Senate * December 26, 1991: End of Cold War * November 3, 1992: Election of Bill Clinton as President of the United States Major legislation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Committee On Science, Space, And Technology
A committee or commission is a body of one or more persons subordinate to a deliberative assembly. A committee is not itself considered to be a form of assembly. Usually, the assembly sends matters into a committee as a way to explore them more fully than would be possible if the assembly itself were considering them. Committees may have different functions and their types of work differ depending on the type of the organization and its needs. A member of a legislature may be delegated a committee assignment, which gives them the right to serve on a certain committee. Purpose A deliberative assembly may form a committee (or "commission") consisting of one or more persons to assist with the work of the assembly. For larger organizations, much work is done in committees. Committees can be a way to formally draw together people of relevant expertise from different parts of an organization who otherwise would not have a good way to share information and coordinate actions. They may ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pennsauken, New Jersey
Pennsauken Township is a township in Camden County in the U.S. state of New Jersey. It is a suburb of Philadelphia. As of the 2020 U.S. census, the township's population was 37,074, reflecting an increase of 1,189 (+3.3%) from the 35,885 counted in the 2010 census. The township is part of the South Jersey region of the state. History Pennsauken Township was incorporated as a township by an act of the New Jersey Legislature on February 18, 1892, from portions of the now-defunct Stockton Township.Snyder, John P''The Story of New Jersey's Civil Boundaries: 1606-1968'' Bureau of Geology and Topography; Trenton, New Jersey; 1969. p. 108. Accessed July 24, 2012. The exact origin of the name Pennsauken is unclear, but it probably derives from the language of the Lenni Lenape Native Americans, who once occupied the area from "", the Lenape language term for tobacco pouch. Alternatively, the "Penn" in the township's name refers to William Penn, while "sauk" is a water inlet or outl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pacific Bell
The Pacific Bell Telephone Company (Pacific Bell or Pac Bell) is a telephone company that provides telephone service in California. The company is owned by AT&T through AT&T Teleholdings, and, though separate, is now marketed as “AT&T”. The company has been known by a number of names during which its service area has changed. The formal name of the company from the 1910s through the 1984 Bell System divestiture was The Pacific Telephone and Telegraph Company. As of 2002, the name “Pacific Bell” is no longer used in marketing, Pacific Bell is still the holder of record for the infrastructure of cables and fiber through much of California. History The Pacific Telephone and Telegraph Company, or "PacTel" for short, managed the Bell System's telephone operations in California. It grew by acquiring smaller telephone companies along the Pacific coast. It built and occupied San Francisco's Pacific Telephone Building on New Montgomery Street which has been described as a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
