Computer networks are the basis of communication in IT. They are used in a huge variety of ways and can include many different types of network. A computer network is a set of computers that are connected together so that they can share information. The earliest examples of computer networks are from the 1960s, but they have come a long way in the half-century since then.
What Do Networks Do?
Computer networks are used to carry out a large number of tasks through the sharing of information.
Some of the things that networks are used for include:
Communicating using email, video, instant messaging and other methods
Sharing devices such as printers, scanners and photocopiers
Sharing software and operating programs on remote systems
Allowing network users to easily access and maintain information