The term computer network means an interconnected collection of autonomous computers.
Computers can be linked by networks to share data and resources. Computer networking began in early 1980.
In its simplest form, a network consists of computers connected together using network interface cards (NIC), networking software and network cabling. An individual computer connected to a network is a workstation, and any individual device such as workstation, printer, scanner or fax connected to a network is a node.
The main utility of a computer networks is involved in sharing resources between users shraring of resources of common needs can help companies reduce cost.
People use different types of networks every day :
- Mail delivery system
- Telephone system
- Public transportation system
- Corporate computer network
- The Internet
Different types of network media:
- Copper cabling
- Fiber-optic cabling
- Wireless connection
* Fewer peripherals needed
* Increased communication capabilities
* Avoid file duplication and corruption
* Lower cost licensing
* Centralized administration
* Conserve resources
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