on The Sims 3 u can only save one at a time if u get sick or if your family dies u go to edit neighboorhood then click change active houshold and u get a new family u can do it even if your family is alive all in all have fun with the sims :)
start/my documents/EA games/The sims 2 and in the sims 2 file you have others that keep the neighborhood and saved sims and other very important things. don't mess with the files unless you know what you are doing.
When your sims move out they go to the family bar in the neighborhood screen
Twinbrook
The code 'int prop max num of visiting sims' code does that you can decide how many sims you can invite over at the time or how many sims can come to a store or something like that :) you have to write this code in the neighborhood. examle: int prop max num of visiting sims 100
You can make them or choose an already made sim in the neighborhood or in the sims bin.
no you cannot move sims to another neighborhood
Yes...in my opinion. The sims 2 is a virtual human game. You control their hunger, emotions, and familys! its really fun, and its almost too realistic. but you need to be dedicated, and if you want sims 2, you have to have sims 1, but whatever you do, youll have fun, Im addicted!
without getting died
Stop playing
I'm not sure about sims two, but when you un-install it should ask if you wanna remove saved data - say 'no'. If not then move the Sims files to a different location (probably do that in case it doesn't ask if you wanna keep the saved data)
the only thing you can do is look for the files on your computer and recycle bin, and if you cant find it then you have to start over.
It's which ever family you played and saved before exiting the game.