How to classifiy the computer network?

three types of networks include:
         
1. LOCAL AREA NETWORK(LAN)
2.METROPOLITAN AREA NETWORK(MAN)

3.WIDE AREA NETWORK(WAN)

     

LOCAL AREA NETWORK(LAN)

•  LAN is a network which is designed to operate over a small physical area such as an office, factory or a group of buildings. 
•  LAN’s are easy to design and troubleshoot 
•  Exchange of information and sharing of resources becomes easy because of LAN.  In LAN all machines are connected to a single cable. 
•  Different types of topologies such as star, tree, bus, ring, etc Can be used
•  It is usually a privately owned network.

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METROPOLITAN AREA NETWORK(MAN)

•  It is in between LAN & WAN technology that covers the entire city.
•   It uses similar technology as LAN.
•   It can be a single network such as cable TV network, or a measure of connecting a number of LAN’s o a large network so that resources can be shared LAN to LAN as well as device to device.

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WIDE AREA NETWORK(WAN)

•  When network spans over a large distance or when the computers to be connected to each other are at widely separated locations a local area network cannot be used. A wide area network(WAN) is installed.
•  The communication between different users of WAN is established using leased telephone lines, satellite links and similar channels. 
•  It is cheaper and more efficient to use the phone network for the link.
•  Most WAN networks are used to transfer large blocks of data between its users.