How do I set permissions so the other users on the computer can not INSTALL?

From: Abe (aabrah5_at_uic.edu)
Date: 06/30/04 

Date: Tue, 29 Jun 2004 19:27:37 -0700

I would like to set-up 5 accounts on our families
computer. Two adult accounts and 3 children. I do not
want anyone other than myself installing programs onto
the computer. How do I go about setting security measures
so that no one installs anything?

Thanks

Abe