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LAN (Local Area Network)   PAN (Personal Area Network)

 LAN is a short form of Local Area Network. It is a digital communication   PAN is used to establish communication among the computers within the range of an individual. It can
 system that interconnects a large number of computers and other   be wired or wireless. It connects devices such as a computer, smartphone, tablet, printer, etc.
 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 an easy and
 fast way. Cables, Wireless Access Points (WAPs), and communication
 devices are used to connect computers to the LAN.

 MAN (Metropolitan Area Network)

 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.




                          Factbot
 LAN  LAN                                                                        Like rivers flowing through landscapes,
                                                                                   data on the Internet travels across
                   The  concept  of  a  PAN  first  was  introduced  by            networks in streams of information.
                   Thomas Zimmerman at M.I.T.'s Media Lab. It was
                   later supported by IBM's Almaden research lab.

 WAN (Wide Area Network)

 WAN  is  a  digital  communication  system interconnects  a  large  number  of  computers  over  a  wide   CAN (Campus Area Network)
 geographical area.  This network may operate on a worldwide  or nationwide  basis. In such a type
 of network, there may not be a physical connection between computers. In WAN, telephone lines,   CAN, also known as Cluster Area Network, connects two or more LANs   Hostel
 microwave, satellite links, etc. can be used as transmission medium.  that are limited to specific geographical areas.  For example, college
                 campus, office building, etc. A campus area network is larger than LAN                              Lab
                 since it may span in multiple buildings within a specified area.            College


                 TOPOLOGY                                                                                 Library
 LAN  LAN  LAN  LAN
                 Topology refers to the geometric arrangement of computers or nodes in a network. The factors that
                 determine the type of topology  are cost, flexibility, and reliability. There are five different  types of
                 topologies. Let us learn about them.

                 Bus Topology


 LAN  LAN        This  topology  connects  all nodes  to a single
                 common path. It is simple and easy to maintain.
                 You  can  connect  additional  nodes  at  any  point
                 along its length. The major disadvantage of this
                 topology is that fault detection is very difficult.
 Imagine computer networks as highways in the sky. What vehicles would travel on these
 highways, and what destinations would they reach?






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