Network+types

= What are the network types? =

= LAN: = A [|local Area Network] is a network restricted to one building or site e.g a school usually uses LAN. LAN is a private network usually belonging to an organization or business. A LAN usually consists of a number of computers and other devices connected to hubs or switches which are connected in turn each other. One of the hubs or switches is normally connected to a router in order to connect to the internet.

=WAN:=

( wide area network) : is a connection of LANs with a router or a modem.

It is extended in a bigger geographical area than a LAN, it can be created by companies to connect their LANs in different places by cables but it can be very expensive. This technology can be slower than LAN. A WAN has to use also some extra technologies not used in LAN for exemple a router and a proxy server.

Wireless Local Area Network. It uses WiFi signals to connect computer instead of cables. There is a switch for it. The small box with a sticking out antennas is used for sending and getting data to the computer. It is more easy to use it but it should be protect by a hard-guessing password so that people around won’t know it.
 * WLAN: **

It is also built into most laptop.