What is LAN (Local area network)?

A local area network is a computer network that interconnects PCs inside a restricted region like a home, school, research facility, college grounds or office building. The simplest Internet-connected LANs need just a router and a way for computing devices to associate with the router, for example, through Ethernet links or a WiFi hotspot. LANs without an Internet association need a switch for conveying information. Enormous LANs, for example, those in a huge place of business, may require extra switches or changes to all the more effectively forward information to the right gadgets.