What is a Computer Network

What is a Computer Network 

Computer networks are changing the life style of a common person. Computer networks is an interconnection of various computers to share software ,  hardware,resources and data through a communication medium between them. A Computer Networking is a set of autonomous computers that permits distributed processing of the information and data and increased Communication of resources. 

Any Computer Networking communication need a sender, a receiver and a communication medium to transfer signal or Data from sender to the receiver. We need sender, receiver, communication channel, protocols and operating system to establish a computer networking. A networks model describes the organization of various computers in a network for using resources.

What is a Computer Network Model

A computer networks communication can be based on centralized, distributed or collaborative computing. Centralized computing involves many workstations or terminals, connected to one central mainframe or other powerful computer. Distributed computing interconnects one or more personal computers and allows various services like Data sharing, hardware sharing resources Sharing or network sharing. The collaborative computing is the combination of centralized and distributed computing.

What is a Computer Network Classification

The local area network communication can be constructed by using server based model or peer to peer model. In peer to peer networks, the individual clients share data and resources but no one computer is treated as server.

Networks can be classified into local area Networks, metropolitan area Networks and wide area networks. Local area network is the small network that cover a small area of Network. Metropolitan area networks are created by combining various local area networks. Wide area networks are the biggest networks that provide connectivity across the globe.

Networks provide the benefits of exchanging information or Data, sharing resources, reducing system costs, increased reliability and flexible working environment.

What is a Computer Network topology

The physical arrangement of computers in a communication network is called as topology. In star topology, every system on the network is connected to a central controller called Hub and all the data is transmitted through this. Star topology is very easy to install and configure. In bus topology, a single cable acts as a backbone of the communication network and all the nodes or computers are attached to it by using T connectors.

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