It has become necessary to know each and everything in comp science as otherwise we would be fooling ourselves struggling all along in life without having enjoyed the good benefits of equipments like a computer. Though I am not an engr, I can guide you from my experience.
WiFi is a provision, a software already inside the windows xp and w 7 etc. It cannot work without a hardware called WiFi Modem. You have to demand your service provider BSNL OR AIRTEL to supply to you the wifi modem against an amount of about Rs1400/- or you may get it from your relatives or friends who may not need it and might have thrown it aside. The service technician from BSNL OR AIRTEL will configure your wifi lan network and other necessary formalities and issue a user name and pw for the same. Once set right, your desk top computer will get a high value rank.
How? Your relatives may have laptops, android mobiles, or nokia mobiles which can have internet enabled all at the same time from your desktop without wire connections. IT IS WIRELESS ACCESS TO CELLPHONE AND LAPTOP. Many peopel can access it all at the same time and use their emails etc HOW CONVENIENT IT IS, WA WA!! You can still be on your desk top PC without getting hurt or disturbed in any way. That is the best partof it. The bad sides, if there are fellows or guys outthere nearer to your house, they may get access to your wifi network, IF YOU DID NOT INSIST ON PASSWORD PROTECTION for your wifi. They can access and send wrong messages to Govts etc. And your IP no will be pciked up for punishment by the authorities. So, like any other thing be careful about it. DO NOT KEEP IT SWITCHED ON 24/7
INSIST ON PW PROTECTION AND DONT GIVE IT TO ALL AROUND YOUR HOUSE. KEEP IT A SECRET.
LET NOT MANY PEOPLE KNOW THAT YOU HAVE WIFI ENABLE PC AT HOME.
BECAUSE PEOPLE CAN HACK AND GET ACCESS TO THENET.
OK, these are the warnings part of it.
Now wishing you all the best,
D PARAMESWARAN 60yrs comp science is my favourite topic besides curing all diseases by naturopathy, yoga etc.
visit my site for knowing me
www.sunflowerdance.com - go tocomp sci pages in there.