Using Computer's Internet Connection on Mobile Phones

It's a common knowledge that we can use our mobile phone's internet connection for our computer.  Many guides are all over the internet showing us how to configure our mobile phone to act as a modem for our computer.  But only few people know that we can actually use our computer's internet connection to be able to browse the web on our cellphone. I know it sounds silly since one may ask who want to browse using their phones tiny screen when they already have their most reliable laptop with them.  Well, i'm one of those in search of this breakthrough. Why? Because i'm using  samsung sgh-u700.  Getting softwares to work for this phone is very hard and costly.  You can't just download a jad or jar file then transfer it to the sgh-u700 since it won't accept it.  I want to download games and applications for free so if anyone here knows how to use the computer's internet connection with their mobile phone feel free to leave a comment.