The internet allows computers from all around the world to connect to each other. They can also however be connected locally. A group of computers in a particular general area can be connected through a LAN (local area network). An NIC (network interface card) allows a computer to connect to a LAN by connecting to a modem through a hub.
These Lans are used mostly for businesses schools etc. Computers can also be connected across larger areas than an office building or a school, and can be connected in multiple buildings across a city or several buildings in a large area. This is called a MAN (Metropolitan area network). The step higher than a MAN is known as a WAN (wide area network) which is for businesses and such that have buildings in different far away areas that can all be connected over one WAN.
No comments:
Post a Comment