A computer network is a collection of computers and devices connected by communication channels.

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Presentation transcript:

A computer network is a collection of computers and devices connected by communication channels.

Share information: Network allows authorized user to share data and information stored on other computers of the network.

Share hardware and software: Computers connected to a network can share equipment like printers,modems etc. They also can share software.This helps to avoid high duplication costs

Share internet: Network can share a single internet conection.This facilities comunication.Pleo ple can communicate efficentlyand easily via , instnt message,chst rooms, and videoconferencing.

There are 3 main types of networks  LAN  MAN  WAN

Local area network: A computer network that physically links two or more computers computers within a geofraphic limited area such as a building.The linked computers are called workstations.

Metropolitan area network: A metropolitan area network covers larger geographic areas, such as cities.

Wide area network: Wide area network connect larger geographic areas, such as countries.

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