What is Xbox and how will it perform with downloading movies or video of any
brand??
How does it function or work with your pc and your tv ??
Thank you

Are you refering to microsoft's Xbox? If so, it is simply a video-game console. There is an underground following of people who physically mod the motherboards and turn it from a console into basically a low price computer. Then there are people who do pirating and other illegal stuff, but that's a sore subject to talk about. Once moded, you can do everything from surfing the internet to playing movies from your xbox to your tv. Check out http://xboxscene.com/ to learn more.