NETWORK

A computer network is a system in which multiple computers are connected to each other to share information and resources.

• Characteristics of a computer network
• Share Resources from one computer to another
• Create files and store them in one computer, access those files from the other computer(s) connected over the network 
• Connect a printer, scanner, or a fax machine to one computer within the network and let other computers of the network use the machines available over network.

TYPES OF NETWORK

Local Area Network
A computer network spanned inside a building and operated under single administrative system is generally termed as Local Area Network (LAN).

Metropolitan Area Network

The Metropolitan Area Network (MAN) generally expands throughout a city such as cable TV network.

Wide Area Network

As the name suggests,the Wide Area Network (WAN) covers a wide area which may span across provinces and even a whole country