If your 360 drive is flashed then yes you can once the copied game is the same as the game you installed but you could just play from the copied disc.
Yes you can. All versions of the xbox 360 are compatible.
As of 2008, there are no devices or programs you can install on your computer to allow it to play Xbox 360 games.
No, but if you choose not to install them; it will not let you play xbox live.
No
No PS2 games do not play on the Xbox or Xbox 360
you need a upgrade
Unfortunately, no it can not.
Yes, but you won't be able to install the game or any DLC to your console.
In short: no. The Xbox 360 has to install an original Xbox emulator program to run the Xbox games. It stores this emulation software on the hard drive.
NO!!No, But you CAN play xbox games on the xbox 360
Jtag is a mod for the Xbox 360 which allows you to play downloaded games. You could play xbox live with this but you will get caught and banned (xbox and gamertag ban).