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It helps in reducing the cost of hardware.
                Store information on one centralised location.
                Reliability  implies  backing up of information. If a system  crashes, then the information is
               accessible on another workstation for future use.

                Reduction in installation cost.
                User authentication process to secure the data.

                NETWORK TERMINOLOGY

            Server

            A server is also called as host computer. It controls the access to the hardware and software on
            the network. It provides a centralised storage area for the programs, data and information.
                The computer which performs a specific task is called the dedicated server.

                The computer which manages the printers and documents being printed is called the print
               server.
                The computer which stores and provides the access to a database is called a database server.
                The server which manages the network traffic is called a network server.
                The  computer  which  delivers the  requested  web  pages  to  our  computer  is called  a  web
               server.
            Client

            It is a computer which depends on the server for all the resources. For example, a server might

            store a network version of Excel program.  Every client on the network  can access the Excel
            program from the server.
                COMPONENTS REQUIRED FOR A NETWORK

            The components needed for a network are:












                   NIC          Ethernet cable          Hub or Switch         Modem             Router

                Network Interface Card (NIC): It is an expansion card which provides the network access
               to a computer. It allows the computer to connect to a network through a wired or wireless
               medium.

                Hub or Switch:  It  is  hardware  device  that  has  various  boxes  to  which  the  computers,
               printers and other networking devices are connected. The main function of a hub is to direct
               information around the network and facilitate communication between all the connected
               devices.



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