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Take Off                                                          Century   #Critical Thinking
                                                                                              21 st
                                                                                              Skills  #Media Literacy
                 Write any four methods of communication that you can think of.

                 1.                                         2.

                 3.                                         4.






            The process of connecting computers and peripheral devices with each other, so that they can exchange
            data is called computer networking. Various hardware devices, protocols and software are required
            for networking. In this chapter, you are going to learn about networking and the concepts related to
            computer networking.


                 COMPUTER NETWORK


            A computer network is a group of interconnected computer systems and other computing devices.
            There are different kinds of computer networks that work in different ways. Networks may be very
            small and simple or they may be complex as a global network like the Internet. There may be wired or
            wireless connection between computers on the network.




















                                                      Computer Network


            The computers on the network can communicate with each other as well as work independently. Each
            computer in a network is called a node. The computers in the network maybe linked through a cable,
            hub, switch, NIC (Network Interface Card), modem or router.


                 NEED FOR COMPUTER NETWORK


            Computers and other devices connected on a network help in:
                 Resource Sharing: It helps the users to share files and hardware devices such as printers, scanners, etc.

                 Communication: It helps us to communicate with others through e-mail, video conference, instant

               messaging, etc.


                                                                                         #Computer Networking  11
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