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Bandwidth is generally in bits per second (bps) or Bytes per second (Bps), Kilobytes per second
            (Kbps) and Megabytes per second (Mbps). There can be various types of bandwidths, which are
            network bandwidth, data bandwidth, or digital bandwidth.




                   TYPES OF NETWORKS

            Networks can be classified based on their size, complexity and the geographical area covered by

            them. Let us understand these categories in detail.

            PERSONAL AREA NETWORK (PAN)

            PAN refers to the privately owned network. Pan is used to
            establish communication amongst the computers within the
            range of 20 to 30 feet. This type of network can be wired or

            wireless.



                                        LOCAL AREA NETWORK (LAN)
                           Workstation
                                        LAN  is a digital communication system that interconnects a larger
                                Server
                                        number of computers and other peripheral devices within a radius of
                                        less than 1 km. This type of network is useful when you want to connect
                                        two different departments in a building (e.g. an office, a building or
                                        a factory). The hardware, as well as software resources, are shared
                                        through LANs. Your school lab is an example of LAN.



            CAMPUS AREA NETWORK (CAN)

            CAN connects two or more LANs that are limited to                             Campus
            specific geographical areas. For example, college                          Network
                                                                                          Area
            campus, office building, etc. A campus area network is
            larger than LAN since it may span in multiple buildings
            within a specified area.




                                                  METROPOLITAN AREA NETWORK (MAN)

                 LAN                 LAN          MAN consists of two or more local area networks or campus
                                                  area networks together that usually spans several buildings

                                                  in the same city or town. It covers an area ranging from 10
                                                  to 100 km. For example, the Internet services provided to
                                                  users in a city or the ATM network of any area falls under
                            LAN
                                                  MAN.





                                                                                         Networking Concepts  13
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