LAN or WAN?

Link to us : http://sn.im/u6g42

Hi readers...here we are again. My friend Mr Ducky talked of disadvantages of going to the internet cafe.

Do you know what is Local Area Network(LAN) and Wide Area Network(WAN)?? I believe i do because i am learning about it in my class...hahaha
Okay...Local Area Network used for a small geographical area like our own Internet Cafe. LAN is computers and devices that share the same line or wireless link. This LAN can serve a few like two or three computers for example a home network or serve hundreds of computers like an internet cafe. However,internet cafes uses mainframes,high-performance computers to handle the server so do not compare the home network with the one the internet cafes use.

WAN is not like LAN as WAN covers a larger geographical area like province,state or country and this WAN often connects smaller networks like LAN for example. I got one question for you people.
Do you think the internet cafe you always visit to uses a wired LAN or wireless LAN? I believe every single internet cafe out there operating is using the wireless LAN because wireless LAN is cheaper to install and easier to maintain rather than the wired LAN.

source of reference ( Wireless/Networking accessed on 26 January 2010) : http://compnetworking.about.com/cs/lanvlanwan/g/bldef_wan.htm