Classification of computer networks!

Clasification of computer network

Computer communication, information sharing, electronic mail, electronic libraries, bulletin boards, etc. using computer networks are increasing in prevalence and spread. As a result, different types of networks are used in different countries of the world today. That is why the computer networks used in the world are classified from different points of view: namely--

(a) Classification of Networks by Ownership :

(i) Private Networks and

(ii) Public network.

(b) Computer network according to type of work According to the type of work computer network can be mainly divided into three parts. These are-

(i) Peer-to-peer network

(ii) Client-server network

(iii) Hybrid network

(c) Classification of networks according to geographical extent :

(i) Personal Area Network (PAN)

(ii) Local Area Network (Local Area Network-LAN)

(iii) Metropolitan Area Network (MAN)

(iv) Wide Area Network (Wide Area Network-WAN)

In general, network segmentation refers to the classification according to geographical distribution.

Peer-to-peer network:

The literal meaning of the word peer is peer. In the network, such PCs act as clients and servers, i.e. all computers work in the same class. In this type of network, each computer plays an equal role in resource sharing. There is no specific server, so there is no ranking of computers in terms of importance. In other words, each computer in this type of network is simultaneously a server and a workstation. Here each computer is decentralized or scattered. Plays an equal role in resource sharing. There are no dedicated servers, so there is no hierarchy between computers. Each computer is responsible for its own data security. The computer user determines which of his files or data will be open for use by others on the network. In a peer to peer network each user can share their resources with others.

Features of Peer to Peer Network:

Some of the features of peer to peer network are --

(i) Users can share various resources of their computer, such as file-folders, printers, CD-ROM drives, etc.

(ii) Such network is convenient for 10 or less users.

(iii) Files or resources are not stored in one location.

(iv) Here each user administers his own computer, no need for a dedicated administrator.

(v) It does not require any special software or operating system to create it. It is not possible to centrally control the users and security of the entire network.