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MAN (Metropolitan Area Network)

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





                                             LAN                                        LAN







                                                        Metropolitan Area Network
                  WAN (Wide Area Network)

                  It is a digital communication system that interconnects a large number of computers over a wide
                  geographical area. This network may operate on a worldwide or nationwide basis. In such type

                  of network, there may not be physical connection between computers. In WAN telephone lines,
                  microwave, satellite links, etc.; can be used as transmission medium.






                        LAN                      LAN                                 LAN                       LAN










                                                      LAN                        LAN



                                                            Wide Area Network
                  PAN (Personal Area Network)

                  These are privately owned networks. PAN is used to establish the communication amongst the
                  computers within the range of 20 to 30 feet. It can be wired or wireless.


















                                                          Personal Area Network

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