COMPSCI 1JC3 Lecture Notes - Lecture 7: .Int, Top-Level Domain, The Sender
7 Dec 2017
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Document Summary
Physical network - a physical medium for a set of computers to exchange digital information. The computers are connected to a physical network through a network interface. Connection-oriented means a channel of communication between a and b. Connectionless means communicating without a channel (e. g radio, because the radio is broadcasting data to people) (e. g postal system, there is no connection between you and the person you"re sending it to) Local area network - physical network set up in a building (e. g wi-fi, ethernet) Structure of a physical network can be different : bus, ring, star, point to point topologies. Examples of physical network technologies: ethernet, wi-fi, asynchronous transfer mode (atm), fiber distributed data. How can communication be performed across different computer networks possibly based on different network technologies. There is a universal virtual network built on top of the physical networks. An internet is a universal virtual network based on.
