ideal secure personal computer system

[Igor Chudov @ home]

Bill Frantz wrote:
> Protection against strangers walking up to your machine and using it is
> nice, and easy to do.  Protection against viruses which install Trojan
> horses in your system would also be nice, but is very hard to do in systems
> where programs run with all the privileges of their users.  Examples
> include (in alpha order): DOS, MacOS, Unix, and Windows (including NT).

I wonder what are the operating systems where programs may be run with
_less_ privileges than the user who starts them? Is VMS one of such 
systems?

thanks

	- Igor.