Computer network

computer network

Computer network is the infrastructure that allows computers to communicate with each other. It allows the computer to share the resources such as documents, databases and software.

There are 2 ways:
1. Geography location
Have 3 type :
- LAN (local area network) - is a network that cover only in a small area. Such as office, school and collage.

-home small group building office school collage.
- MAN (metropolitan area network) - is a network that cover a large area than LAN. Such as city.
- WAN (wide area network) - is a biggest network covering in a big area. Such as Internet and bank.

Wireless Network

Good :

- Use Radio waves to transmit data

-Popular, as no wire required

-Cast effective

-Future Flexibility

Bad :

-Consume electricity

-less secure

Wireless network have 2 type:

Ad-hoc/Peer-to-peer Wireless network

-Each computer can connect directly to the other computers

-Share files and printers

Access Point Wireless Network

-Access of equipment[wireless router] or software.

-Wireless network interface card

Network Interface Card : NIC

-Used by PC systems to connect to either an Ethernet network or a wireless network.

-NIC are already installed on most PCs

-May need a outer to create a home office network.

-NICs are not used in laptops pr PDAs