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An ARPANET host address, therefore, consisted of both the port index on its IMP and the identifier of the IMP, which was written with either port/IMP notation or as a single byte; for example, the address of MIT-DMG (notable for hosting development of Zork) could be written as either 1/6 or 70. An upgrade in early 1976 extended the host and IMP ...
Larry Roberts (December 21, 1937 – December 26, 2018) was an American computer scientist and Internet pioneer.. As a program manager and later office director at the Advanced Research Projects Agency, Roberts and his team created the ARPANET using packet switching techniques invented by British computer scientist Donald Davies and American engineer Paul Baran.
[nb 2] After approval by Barry Wessler at ARPA, [11] who had ordered certain more exotic elements to be dropped, [12] it was finalized in RFC 33 in early 1970, [13] and deployed to all nodes on the ARPANET in December 1970. [14] [15] NCP codified the ARPANET network interface, making it easier to establish, and enabling more sites to join the ...
Leonard Kleinrock was born in New York City on June 13, 1934, to a Jewish family, [3] and graduated from the noted Bronx High School of Science in 1951. He received a Bachelor of Electrical Engineering degree in 1957 from the City College of New York, and a master's degree and a doctorate (Ph.D.) in electrical engineering and computer science from the Massachusetts Institute of Technology (MIT ...
He wrote a file transfer program called CPYNET to transfer files through the ARPANET. [19] Tomlinson was asked to change a program called SNDMSG, which sent messages to other users of a time-sharing computer, to run on TENEX. [20] He added code he took from CPYNET to SNDMSG so messages could be sent to users on other computers—the first email ...
In 1967, he became a program manager in the ARPA Information Processing Techniques Office (IPTO), where he managed the development of the ARPANET, the first wide area packet switching network. Roberts applied Donald Davies' concepts of packet switching in the ARPANET, and sought input from Paul Baran and other researchers on network design.
David Corydon Walden (June 7, 1942 – April 27, 2022) was an American computer scientist and Internet pioneer who contributed to the engineering development of the ARPANET, a precursor of the modern Internet. He specifically contributed to the Interface Message Processor, which was the packet switching node for the ARPANET.
Joseph Carl Robnett Licklider (/ ˈ l ɪ k l aɪ d ər /; March 11, 1915 – June 26, 1990), known simply as J. C. R. or "Lick", was an American psychologist [3] and computer scientist who is considered to be among the most prominent figures in computer science development and general computing history.