Background /Versions of O.S.

[Tim Pointing]

How do I tell which revision of the O.S. is running on my 4D/20. All it
says is "4D1-3.14711181642". I can see the 4D in there as well as the "3.1"
but is the rev in there too? People have been talking about Rev C and Rev D
but I can't tell what I have (except that a number of the programs which
have appeared in this mailing-list/newsgroup don't work!)

Thanks in advance,
Tim Pointing, DCIEM

tim at zorac.dciem.dnd.ca / uunet!zorac.dciem.dnd.ca!tim / uunet!mnetor!dciem!tim