On Tue, 15 May 2001, Carl Lowenstein wrote:

> > Date: Tue, 15 May 2001 18:45:14 -0400 (EDT)
> > From: der Mouse <mouse@Rodents.Montreal.QC.CA>
> > To: saad mogren <s_mogren@yahoo.com>
> > Cc: port-vax@netbsd.org
> > Subject: Re: VAX magtape TU81
> > 
> > > Qbus is a DEC proprietary bus.  [...]  You'll have to get your hands
> > > on a DEC machine if you want to use that tape drive.
> > 
> > What's proprietary about the Qbus?  It's certainly well enough
> > documented; I once was one of a pair of people who built a Qbus board
> > out of discrete logic.  (And in the process learned something about
> > proper power supply bypassing. :-/)
> 
> Proprietary in this context means "only DEC computers used the Qbus".
> Just line the Sbus is proprietary to Sun.

Actually, I know that there were processor cards using the Motorola 68000
CPU build for the Qbus by some other vendor.
Fairly popular bus for lab work and embedded systems in the '80s. (If
anything can be said to have been popular in the '80s.)

	Johnny

Johnny Billquist                  || "I'm on a bus
                                  ||  on a psychedelic trip
email: bqt@update.uu.se           ||  Reading murder books
pdp is alive!                     ||  tryin' to stay hip" - B. Idol