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History Of Internet by Gizeeto1(m): 11:03pm On May 11

Research has it that January 1, 1983 is considered the official birthday of the Internet. Prior to this, the various computer networks did not have a standard way to communicate with each other. A new communications protocol was established called Transfer Control Protocol/Internetwork Protocol (TCP/IP).

The history of the Internet has its origin in information theory, the efforts to build and interconnected computer networks that arose from research and development in the United States and involved international collaboration, particularly with researchers in the United Kingdom & France.

Theoretical work on information theory was developed by Harry Nyquist and Ralph Hartley in the 1920s. Information theory, as enunciated by Claude Shannon in the 1940s, provided a firm fundamentall underpinning to understand the tradeoffs between signal-to-noise ratios, bandwidth and error-free transmission in the presence of noise in telecommunications technology. This was one of the three key developments, along with advances in transistor technology (specifically MOS transistors) and laser technology, that made possible the rapid growth of telecommunication bandwidth over the next half-century.

Computer science was an emerging discipline in the late 1950s that began to consider time-sharing between computer users, and later, the possibility of achieving this over wide area networks. Independently, Paul Baran proposed a distributed network based on data in message blocks in the early 1960s, and Donald Davies conceived of packet switching in 1965 at the National Physical Laboratory (NPL), proposing a national commercial data network in the UK.

The Advanced Research Projects Agency (ARPA) of the U.S. Department of Defense awarded contracts in 1969 for the development of the ARPANET project, directed by Robert Taylor and managed by Lawrence Roberts. ARPANET adopted the packet switching technology proposed by Davies and Baran, underpinned by mathematical work in the early 1970s by Leonard Kleinrock at UCLA. The network was built by Bolt, Beranek, and Newman.

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