LAN MAN WAN:-
1. LAN :
§ A local area network (LAN) is usually privately owned and links the devices in a single office, building, or campus.
§ Currently, LAN size is limited to a few kilometers.
2. MAN :
§ A metropolitan area network (MAN) is a network with a size between a LAN and a WAN.
§ It normally covers the area inside a town or a city.
3. WAN :
§ A wide area network (WAN) provides long-distance transmission of data, image, audio, and video information over large geographic areas that may comprise a country, a continent, or even the whole world.