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01                                              COMPUTER NETWORKING














                              Your Aim

                              to learn about:

                                    Computer Network                        Need for Computer Network
                                     Advantages of Computer Network           Network Terminology
                                      Components Required for a Network          Types of Network
                                       Topology                                   Network Architecture
                                        Wireless Networking Technology              Protocol


                 The process of connecting computers and peripheral devices with each other, so that they can
                 exchange data and resources is called computer networking. To do networking, various types
                 of hardware devices, protocols and software are required.

                     COMPUTER NETWORK

                 The computer network is a system of interconnected computers which
                 can communicate with each other. It allows us to share the resources
                 such as computers and peripherals.
                 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
                                                                                                  Computer Network
                 computers in the network maybe linked through the cable, hub, switch,
                 NIC (Network Interface Card), modem or router. There are different kinds of computer networks
                 that work in different ways. Networks may be very small and simple as in a room or they may
                 be complex as a global network like the Internet. There may be wired or wireless connection
                 between computers on the network.

                     NEED FOR COMPUTER NETWORK
                 Computers and other devices connected on a network help in:

                     Resource Sharing: It help the users share files and hardware devices such as printers, scanners, etc.
                     Communication: It helps us communicate with others through e-mail, video conference,
                    instant messaging, etc.
                     Data Security: Networks enable the implementation of security measures such as firewalls,

                    encryption, and access controls to protect sensitive information from unauthorised access,
                    interception, and tampering.


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