Computer Networks

Computer network is to combine several computers that are interconnected with each other. Given that computer networks allow the computers to each other can communicate and share use (sharing) either hardware or software. Every computer connected to the network called a node. A computer network can have two, tens, thousands or even millions of nodes.

Here are some benefits of computer networks:

1. With computer networks, we can access our files or files of other people who have been granted permission to access rights, wherever and whenever.
2. With a computer network can transmit data quickly and efficiently.
3. With a network of computers can share hardware among its clients, for example using the printer simultaneously.
4. With a computer network can communicate with each other between countries by using various communication technologies such as audio and video in real time.
5. With computer networks can save operational costs such as office delivery of letters, which were replaced with e-mail.

In connecting computers in a network would require a media or equipment. Broadly speaking the media use to connect your computer can be distinguished as follows:

1. Wired (cable)
- Coaxial
- STP (shielded Twisted Pair)
- UTP (unshielded Twisted Pair)
- Fiber Optic

2. Unwired
- Satellite
- Microwave
- Infrared
- Bluetooth
- Wi-Fi
- WiMax