3.1 Computer Networks Overview

3.1 What is a Computer Network? – Overview

A computer network or data network is a telecommunications network which allows computers to exchange data. In computer networks, networked computing devices pass data to each other along data connections (network links). Data is transferred in the form of packets.

The computers on a network may be linked through cables, telephone lines, radio waves, optical fiber, satellites, or infrared light beams.

Types of Computer network:

  • PAN
  • LAN
  • MAN
  • WAN