Page 114 - Webapplication11_C11_Flipbook
P. 114

1.3 BASIC CONCEPTS OF NETWORKING
              As we know, a group of people connected with each other through a social relation or similar interest. They can
              communicate with each other and share thoughts and ideas. This kind of group of people is known as a social network.
              Similarly, a group of computers that can communicate with one another across a shared medium is referred to as
              a network. It is also known as a computer network. The overall process of connecting computers and exchanging
              information between them is called networking. Networking includes computers that are to be connected, networking
              protocols, software, and transmission media through which computers are connected and share information. Following
              figure shows a computer network:
                                                  Workstation
                                                    Client


                                                                                        Server
                                                                 Networking
                                                                   Device









                                                                            Workstation Client
                                          Workstation Client

              Need for Networking

              As we have learned, computer networking is mainly used for resource sharing and transferring information. Let us learn
              about some of the needs for computer networking.
              Share Resources

              We can share hardware and software resources by connecting computers through networking. Peripherals such as
              printers and scanners, the CPU, and RAM are some examples of hardware. Software resources may include system
              software and application software.























              Communication

              The  exchange  of  information  between  nodes  in  a  network  is  simplified  by  connecting
              computers through a network. A network requires a variety of network devices, including
              modems, routers, switches, and bridges, each of which serves a distinct purpose in the network.


                112     Touchpad Web Applications-XI
   109   110   111   112   113   114   115   116   117   118   119