Most Dell computers ship with a version of Windows installed. If this is the case then yes, the Sims will work on it. If you got a Dell with a version of Linux installed, you will still probably be able to play, but might have to do some extra work to get it to play.
no...
It should work.
No, Sims 2 is a completely different game, only expansion packs made specifically for Sims 3 will work.
All expansion packs work together on the sims 3 :)
No
no just like the sims expantion packs don't work on the sims 2
yes
no, expansion packs for the sims 2 won't work in the sims 3
you can follow your sims to their work but you can't actually go in the building with them and watch them work.
To get The Sims 3 to work on Windows 8 would be the same as getting it to work on Windows 7 or Vista.
No
No it does not