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3                        Computer Networking

















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                          Computer Network                                Need for Computer Network
                          Advantages of Computer Network                  Components of a Network
                          Network Terminologies                           Devices Required for a Network
                          Types of Networks                               Network Architecture
                          Wireless Networking Technology                  Protocol






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                     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.

                  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.






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