A Computer Networks is made of multiple computers connected together to communicate with each other and share data resources.
Networks vary in types and size. A home computer network may have two or more computers that shares files and a printer, while the Internet is a network which spans the entire globe and has millions of users.
There are three types of Networks :-
- Local Area Network (LAN) :- LAN is aa local network covering a small geographic area such as a Home building or Office. LANs are mostly based on Wi-Fi and the Ethernet technology. The Local Area Network is used in your Schools, Banks, Laboratory and University campus. It is less costly as it is built with inexpensive hardware such as hubs, network adapters, and ethernet cables.
- Metropolitan Area Network (MAN) :- MAN is a local metro network that connects two or more Geographical Area Network within a Town, City or Metropolitan area. The network of ATM in your city or the Networked offices of an organization in a city are examples of Metropolitan Area Network. It has a higher range than Local Area Network(LAN).
- Wide Area Network (WAN) :- WAN covers a large Geographical Area across Countries or even Continents and users transmission facilities provided by Telephone Companies and ISP (Internet Service Provider) . Banks and E-Banking Networked Offices of Multinational Companies and the Internet are examples of WAN.