Discuss the following types of networks in brief :

(i) LAN

(ii) MAN

(iii) WAN

(i) LAN — LANs (Local Area Network) are small computer networks confined to a localised area like an office, a building or a factory. They facilitate resource sharing among users, including data, programs, printers, hard-disks, modems etc.

(ii) MAN — MANs (Metropolitan Area Network) are the networks spread over a city. For example, cable TV networks that are spread over a city. The purpose of a MAN is also the sharing of hardware and software resources among its users.

(iii) WAN — WANs (Wide Area Network) connect computers across countries, spanning large distances. They can link LANs from different locations, acting as a unified network for efficient, cost-effective and high speed information exchange.