I&C SCI 11 Lecture Notes - Lecture 2: Packet Switching, Wide Area Network, Error Detection And Correction
15 Jan 2017
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Document Summary
1. 1. 3 the internet, computer networks, and packet switching. Internet protocol allows for the transfer of packets to multiple networks: packets information broken down or segmented based on size. The past: early computers were expensive; strive to achieve efficient techniques to share with many other users, terminal-oriented networks. Allowed the users to be linked to a single central shared computer: became necessary to have networks that would accommodate many connections through many computers. Arpanet: first major effort to connect computers in geographical area, users computers. Internet: later helped with creating communications between computers on differing networks. Aided in the allowance of information transfer as packets across networks. Used to make a global series of connected networks out of many. Terminal-oriented networks many diverse networks: used to provide the message transfer service, from message exchange with host computer, terminal could choose actions and obtain results, modems created to transmit digital info, medium access control.
