Wifi LAN Mobile internet wireless internet

im a newbie in technology......im not a techno geek ....i have lots of questions..
as of now i use airtel broadband connection ......plan rs 649 , speed 512 kbps...
today i bought nokia x6......(it has wi-fi,3-G everything)
i have heard a lot of dis term wi-fi/WLAN???? wat exactlly is it???? wat is mobile internet ??????? wat is 3G???
im a download buff n love watching videos on youtube etc. cn i do it in the same way on my mobile nokia x6 without much charges......i m also buying a laptop in a few days n joining a college where campus will be wi-fi enabled....so please guide me wat exactly are wi-fi and mobile internet and 3-G used for??
wat is the use of wi-fi in mobile????i want to download and surf in the same way on my laptop and mobile as i do at my desktop comp......as im heading to clge please guide will i be able to download using torrents in the same way using my laptop?? cn i watch videos n download stuff n my mobile widout much charges???? please help me ......i willlllllllll be highly grateful.....

if your modem/router is Beetel 450 Bxi
see the link below wa 3002-g4.
Or
Beetel 450TCI check Wa 3002-G1 in calcutta phones web site.
Most links have screen shots for newbies.
What is your budget for BB connection every month ?
You will need an unlimited plan for all your requirements !

i m already having unlimted broadband plan of airtel ....rs 649 speed 512 kbps.......wat r the plans in wi-fi?????is it limited usage or der is unlimted usage plan also in wi-fi?

Make wireless settings in your router 450 BXI
and check whether the wifi name you had given appears in your Nokia.
or any error message you get.
( when you get a laptop with wlan card also you can surf in wifi manner )
At home you can stick to landline based broadband, which can be used in wifi mode.
In college , laptop with Wlan card will work.
( also the Nokia Mobile phone if permitted by college authorities ).
Mention the O.S you have.

Originally Posted by deepanshu sethi

i m already having unlimted broadband plan of airtel ....rs 649 speed 512 kbps.......wat r the plans in wi-fi?????is it limited usage or der is unlimted usage plan also in wi-fi?

Please do not use SMS language.