MCC-UE 3 Lecture Notes - Lecture 20: Arpanet, National Science Foundation Network, Cnet
27 Apr 2016
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Document Summary
1960s: remote access to computers via telephone. Multiple users share single machine with maximum efficiency. Airline reservation systems: single mainframe linked to many distant terminals (1960s) Paul baran, us airfare, problem of secure communications in event of nuclear attack (1960s) Proposed breaking up messages and sending in packages around network (instead of continuous point-to-point phone messages) Advanced research projects agency of us department of defense. Leased telephone lines connect via modems (data-to-audio) 1969: launched connection between ucla, stanford, ucsb, university of utah. 1980s nsf took over from arpa (nsfnet, cnet, eventually internet) Abate: internet design favored military blues such as survivability, flexibility, and high performance . At the same time, academic scientists incorporated values like decentralization of authority and open exchange of information . Typically, users are portrayed as consumers acting through the market it is generally assumed that users become involved only after a technology has already been developed.
