WHAT IS COMPUTER NETWORK?
When two or more computers are connected together with the objective of communicating with each other and sharing their resources then they form a computer network.
For example,when sales executives of an organisation work together to sell the product of the company they form company’s sales network.
To form a computer network and establish coordination among the computers of the network ,certain hardware and software elements need to be present in the network. For proper communication among them certain rules of communication,called protocol need to be established.
Protocol is a system of rules that allow two or more entities of a communication system to transmit information via any kind of variation of a physical quantity.
NEED FOR NETWORKING
Following are the requirements that lead for networking:-
BASIC COMPONENTS OF NETWORK
COMMON TYPES OF NETWORKS
1)Local Area Networks (LAN)
2)Wide Area Networks(WAN)
1)Local Area Network
Local area networks are the networks that spread within a short distance of a kilometer or to a building or campus.It is short range network.
Wide area networks are the networks in which computers are spread over a long distances.
It is wide range networks could either be in different countries ,cities or localities.