yes the big difference between arcade and elite is memory
Yes it can you.
Yes, you can play regular xbox 360 games on an arcade unit. The difference in between the arcade unit and the pro system is the pro system comes with a hard drive to save game data/videos/etc.
the xbox 360 arcade can play the same games as the normal xbox 360
The Xbox 360 Arcade can play the Original Xbox games. Where the newer Xbox 360 can not. On the Arcade you can also download other old games. But sometimes you can do that on the other system.
Yes, there is a list of games that you can play on it.
If when you say regular Xbox, you mean the REALLY old one, then get the elite. It can play regular Xbox games, and has a lot of features. If your talking about getting the elite over the arcade, get the elite if you want a black Xbox that comes with a lot of memory, or if you want a white Xbox with little memory, get the arcade.
The Arcade console supports all xbox 360 games.
I think you can. I don't own an arcade but I believe that ALL types of Xbox 360's can play xbox games. Look it up on google.
NO
You can play many regular Xbox games on the Xbox 360.
obviously its an xbox 360
-.- The regular games... old xbox games (most of them), xbox 360 games.. buy games off the arcade... You can't download any from like a torrent site if that's what you're thinking...