Why we need computer networks

Why we need computer networks?

Computer networks help users on the network to share the resources and in communication. Can you imagine a world now without emails, online newspapers, blogs, chat and the other services offered by the internet?

The following are the important uses and benefits of a computer network.

File sharing: Networking of computers helps the network users to share data files.

Hardware sharing: Users can share devices such as printers, scanners, CD-ROM drives, hard drives etc. Without computer networks, device sharing is not possible.

Application sharing: Applications can be shared over the network, and this allows to implement client/server applications

User communication: Networks allow users to communicate using e-mail, newsgroups, and video conferencing etc..

Network gaming: A lot of network games are available, which allow multi-users to play from different locations.

Voice over IP (VoIP): Voice over Internet Protocol (IP) is a revolutionary change in telecommunication which allows to send telephone calls (voice data) using standard Internet Protocol (IP) rather than by traditional PSTN.

Chapter 1 :- Introduction to Computer Networking

Chapter 2 :- What is a Computer Network

Chapter 3 :- Why we need computer networks

Chapter 4 :- Client Operating Systems

Chapter 5 :- Common Network Application Software

Chapter 6 :- LAN and WAN

Chapter 7 :- CAN and MAN

Chapter 8 :- Peer-to-Peer networks and Client-Server networks

Chapter 9 :- Centralized and Distributed Computer Networks

Chapter 10 :- Internetworks, Internet, Intranet and Extranet

Chapter 11 :- What is a Network Protocol

Chapter 12 :- Difference between Proprietary and Standard Protocols