Have added the explanation to the pmax FAQ :)

		David/absolute

                  -=-  and team B will be... Kenny.  -=-

On Sun, 28 Mar 1999, Simon Burge wrote:
> 
> A DECsystem is a machine with no graphics card and a DECstation is a
> machine with a graphics card.  Other than that, they're identical.  For
> example, when you buy a CPU upgrade from (in the past) Digital, you got
> the CPU board and two badges, one each with DECsystem and DECstation.
> 
> Simon.
>