IST 233 Lecture Notes - Lecture 1: Circuit Switching, Bob Kahn, Computer Network
27 Jan 2017
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Document Summary
Concerns about national security after russian launches first rocket, drove the us government to fund scientific research (arpa and nasa) Arpanet network used message or packet switching as an alternative to the circuit switching used on the telephone system. The goal was to provide access to mainframe computer systems, but email emerges as the dominant application. Bob kahn and vint cerf invented a standard universal network language , tcp/ip in. A computer network without all the details. A service for storing and sharing files: cloud storage. A service for hosting applications: cloud apps. A platform providing access to software services: cloud infrastructure. Netflix is amazon"s largest cloud services customer hut the companies are also competitors in streaming video services. Netflix: streamed videos but lacked the infrastructure to deliver this service to a massive user base. Amazon: developed data centers with virtual servers to support their entail operations and decided to commercialize these services.
