Wednesday, April 1, 2009

form 2: Network



COMPUTER NETWORKS :

A computer network is a system of interconnected computers and peripheral devices. For example, it may connect computers, printers, scanners and cameras.
Using hardware and software, these interconnected computing devices can communicate with each other through defined rules of data communications. In a network, computers can exchange and share information and resources.
A computer network may operate on wired connections or wireless connections.When two or more networks are linked or connected and are able to communicate with one another using suitable hardware and software, it is called an internetwork.
BENEFITS OF COMPUTER NETWORKS :
1. Computer network can share devices
2. Can share data and information
3. Can share internet access
4. Speed. Using a network is faster way for sharing and transferring files.
COMPUTER NETWORKS DEVICES :

1. Switch



2. Router

3. NIC (Network Interface Card)

4. Hub


5. UTP cable (wired)



6. Wireless



COMPUTER NETWORKS :



1. LAN




2. MAN
3. WAN




DIFFERENCE OF COMPUTER NETWORKS :