Computer network is a system that consist of computer and another network device which work together to achieve a common goal. The purpose of network computer is:

  • Sharing of resources: example: sharing printer, CPU, Memory, etc.
  • Communication: example: e-mail, chatting
  • Information access: example: web browsing

In order to achieve a common goal, each part of network ask and give service. The receiver is called client and the service provider called server. This architecture is called client-server system, and it’s used in almost whole network computer application.

Classification based on scale:

  • Local Area Network (LAN)
  • Mentropolitan Area Network (MAN)
  • Wide Area Network (WAN)

Classification Based on Function:

Essentially each computer network there’s serves as client and also server. But there’s network that have special computer which is dedicated as server whereas the other as client. Because it is based on function then there are two types of computer networks:

  • Client-Server

Is computer network with special computer which is dedicated as server. A service can be given by a computer or more. Example: a domain like is served by a lot of web server computer. Or it could be a lot of service / services rendered by the computer. Examples are server which is a multi-service computer with the mail server, web server, file server, database server, and others.

  • Peer-to-Peer

Is computer networks in which each host can be a server and a client simultaneously. For example in file sharing between computers on the Windows Network Neighbourhood Network there are 5 computers (we named A, B, C, D and E) are granted access to the files they have. At a point A access file share from B that named data_nilai.xls and give file access soal_uas.doc to C. When A accessing file from B, then A is client and when A give access to C then A is a server. Both function is done by A at the same time, and that is called peer-to-peer.



Muhammad Wildan – 125150300111033


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