The evolution of packet switching

  title={The evolution of packet switching},
  author={Lawrence G. Roberts},
  journal={Proceedings of the IEEE},
  • L. Roberts
  • Published 1 November 1978
  • Computer Science
  • Proceedings of the IEEE
Over the past decade data communications has been revolutionized by a radically new technology called packet switching. In 1968 virtually all interactive data communication networks were circuit switched, the same as the telephone network. Circuit switching networks preallocate transmission bandwidth for an entire call or session. However, since interactive data traffic occurs in short bursts 90 percent or more of this bandwidth is wasted. Thus, as digital electronics became inexpensive enough… 

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