What i need for my pc to receive Wi-Fi?

My pc has xp pro on it. It can connect to the internet via ethernet cable but not Wi-Fi. I want to use my iphone as the Wi-Fi hub using personal hotspots. What do i need to get to make the pc able to connect to my iphones personal hotspots via Wi-Fi?

Added (1). I know for a fact my iphone can be tethered to a pc to use as a Wi-Fi hub using its personal hotspots. I used to do it with my laptop before it broke. What i'm asking is what do i need to make a pc able to receive Wi-Fi, wether from a phone or router or what ever. I've just ordered a Wi-Fi adaptor off ebay that plugs into the usb port. Is that what's required to make my pc able to connect wirelessly?

IPhone 4 iOS 7.0.6 jailbreak?

Hey c:
So, my little cousin dropped my iPhone 4 on the concrete. Now there's no sound. So, I reset it and plugged it into iTunes to see if that would work. It had sound only when connected to iTunes. THEN, I went online saw a bunch of comments saying 'jailbreak it' so I did. I downloaded envasi0n7, and when it finished downloading, I jailbroke my phone. There's no Cydia and the envasi0n 7 app is still there. What do I do?

thanks c:,
x Emerald

Added (1). No my screen isn't cracked. It's chipped on the back where it fell but it isn't cracked. Also, my microphone doesn't work anymore.

And I can't run envasi0n 7. It just stays a white screen with two black lines running across it. It takes a few minutes, then it will close and go to my normal home screen.

Does turning on Wi-Fi and using it on your mobile use my prepaid data?

Hi, I'm just curious does turning on Wi-Fi use my prepaid data. I turned on Wi-Fi on my mums phone and my mums on prepaid. I started watching youtube videos and in 1 day a text is sent to my mum that she has to recharge but she recharged 5 days ago but she usually recharges once or twice a month. My mum has the nokia lumia 520. I'm thinking of getting a 720 but i have plans to get an iphone 5c with a 4g or 3G plan. So does using internet affect my prepaid data?

IPhone 5 power button broken?

Lately my iphone 5 will often put itself in sleep mode, randomly take screenshots, bring up the "turn off phone" option and i recently updated it to the current software to see if it fixes the problem but no dice so is it the power button or something else ps what options do i have for fixing it?