A communication system provides the transfer or sharing of data and information between computers installed at different locations through connectivity is called computer network.
In a computer network, a large number of computers are interconnected with each other, through one or more transmission paths. The type and structure of a computer network depends upon different parameter, according to the needs of users. Networking of a computer allows direct access to any other computer, anywhere and anytime, and one can transmit the information in any part of the world.
Types of computer network
The network may be of a small group of computers, or a large number of computers connected with communication link at different locations.