Computer Network : A collection of computers and other devices that are connected together
by communication channels for sharing information and resources is
called computer network.
The main benefits or uses of computer network are:
- Communication
- Sharing Resources
- Sharing Software
- Data Sharing
Communication :
Using a network, different people can communicate with each other all over the world. People can communicate at very low cost via e-mail, chatting, telephone, video telephone, video conferencing, groupware, and SMS services etc.
Sharing Resources :
In a computer network, resources such as, printers, scanners, fax machines and modems can be shared among different users. Suppose several personals computers and a laser printer are connected to a network. Each users can access the printer.
Sharing Software :
In a computer network, usually application programs and other software are stored on the central computer. Users connected to a network can access these programs or software.
Data Sharing :
In a network environment, any authorized user can access data stored on other computers on the network. For example, on the Internet, a large number of Internet users can access same database.