Networking - Connecting The World

Networking A network is defined as a group of two or more computer systems linked together. There are many types of computer networks, including the following:

Computer Network:      A computer network   is a network which allows computers to exchange data. In computer networks, networked computing devices exchange data with each other along network links . The connections between nodes are established using either cable media or wireless media. The best-known computer network is the Internet.

Advantage of Computer Network

File Sharing: Networks offer a quick and easy way to share files directly. Instead of using a disk or USB key to carry files from one computer or office to another, you can share files directly using a network.

Security: Specific directories can be password protected to limit access to authorized users

Resource Sharing: All computers in the network can share resources such as printers, fax machines, modems, and scanners.

Communication: Even outside of the internet, those on the network can communicate with each other via electronic mail over the network system. When connected to the internet, network users can communicate with people around the world via the network.

Flexible Access: Networks allow their users to access files from computers throughout the network. This means that a user can begin work on a project on one computer and finish up on another. Multiple users can also collaborate on the same project through the network.

Cost: As user can share the recourses such as printers that reduces the cost

 Difference between Peer to Peer Network and Client Server Model:

Peer-to-peer (P2P) is a decentralized communications model in which each party has the same capabilities and either party can initiate a communication session. Unlike the client/server model, in which the client makes a service request and the server fulfills the request, the P2P network model allows each node to function as both a client and server.

Various Type of Network:  There are basically 3 types of networks

1.      LAN:  Local area network.

2.      MAN: Metropolitan area network

3.      WAN: Wide area network.