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Gateway
                                                 A gateway is a network device that allows the data to flow between two
                                                 different networks which may use different protocols. It collects data
                                                 that is to be sent from one computer, converts it into small packets

                                                 and then sends them to another computer.
                            Gateway



                         TYPES OF NETWORKS


                  Different types of networks can be classified on the basis of geographical area they cover. There are
                  five types of networks as follows:


                       LAN (Local Area Network)
                  LAN is a short form of Local Area Network. It is a digital communication system that interconnects a
                  large number of computers and other peripheral devices within a radius of less than 1 km. This type
                  of network is usually preferred for a smaller area such as a residence, school, laboratory, university
                  campus or office building. By using the LAN network, users can exchange data and messages in the
                  easy and fast way. Cables and communication devices are used to connect computers to the LAN.




                                                                          Workstation





                                                                                      Server



















                                                         Local Area Network




                       MAN (Metropolitan Area Network)

                  This network consists of  two or more local area networks or campus area networks together that
                  usually spans several buildings in the same city or town.



                  12    Premium Edition-VIII
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