LESSON 73
WIDE AREA NETWORK (WAN)
Wide Area Network (WAN) is the largest network of all network types. The Internet is the largest WAN in the world. WAN generally covers large distances such as states, countries or continents.
An example in the society using WAN is the banking organisation. Local banks have always maintained their business online by connecting all computers of their branches in the countries. International banks also use WAN to connect their computers all over the world.
Actually, WAN is a group of MANs or LANs or the mixture of both networks.
A device called a router is needed to connect the MANs and LANs all over a large physical area. A router is a special networking device that connects two or more different networks and keeps data flowing between them.
A router makes all the different networks communicate, such as connecting LAN to LAN, LAN to WAN or WAN to WAN.
