what is network...????

Computer Network Model

Computer networks can be interpreted as a series of two or more computers. These computers will be connected to one another with a communications system. With computer networks is possible for each computer that it can be mutually netted in the exchange of data, programs, and other computer resources such as storage media, printers, and others. Computer network that connects computers located at different locations can also be used to send electronic mail (e-mail), sending data files (upload) and retrieve data files from other places (download), and various activities of access to information on the locations separately.

The main purpose of a computer network is resource sharing (read: resources), in which a computer can utilize the resources of other computers within the same network.

Development of data communication technology and computer networks today is no longer limited only to the computer. Various devices were present in communications technology is growing following the developments in computer technology, many of them integrate computer devices such as microprocessors, memory, displays, storage, and communication technology in it but once the technology is developed for a computer that can we meet this time have come to use the computer network technology.

A computer network comprising:

* A minimum of two computers
* Network card (network interface card / NIC) on each computer
* Medium of connection, network card that connects one computer to another, commonly referred to as a data transmission medium, may be a cable or wireless or non-wired (wireless such as radio, microwave, satellite, etc.).
* Network operating system software (network operating system software / NOSS), which serves to make the management of network systems, for example: Microsoft Windows 2000 Server, Microsoft Windows NT, Novell Netware, Linux, and so forth.
* Interconnection equipment such as Hub, Bridge, Switch, Router, Gateway, which was formed when the more extensive network reach.