No, Xbox 360 games are specially designed for commercial Xbox 360 consoles. However downloadable Xbox live community games created in XNA are often available for Xbox 360 & PC.
But if you take your laptop and close it, then pick up your x box put your laptop under it you well be playing on your laptop
Theoretically, any game can be played on a PC. But it seems to take a fair amount of time before any console gets ported to the PC. Latter generation consoles are not as available on the internet, and so far, there is no PC substitute in existence for any "living" console. So Xbox 360 is out. If by Xbox, you mean the original, then sure! There exist emulators for the Xbox original. I don't know if they can play disks, but they can surely run ROMs, if you can find them. As the consoles get newer, ROMs get harder and harder to find. For example, NES ROMs are everywhere, but Nintendo Gamecube ROMs are almost nonexistent.
You are download Xbox 360 games on your computer yes but its illegal.
No, Xbox 360 games only work for the Xbox.
If you find an emulator that can emulate Xbox games.
No.
No.
No.
No, But some Xbox 360 games you can play with people on the computer like Shadowrun.
Generally yes computer games are less expensive than games for the Xbox even versions of the same game.
No.
no
As of 2008, there are no devices or programs you can install on your computer to allow it to play Xbox 360 games.
the same way as regular games in marketplace and download to xbox. it will then be in my games