Subject: Re: Don't buy a vax, but the vax (was Re: RIP, VAX)
To: J.S. Havard <enigma@sevensages.org>
From: Matt Thomas <matt@3am-software.com>
List: port-vax
Date: 08/28/1999 16:25:49
At 03:53 PM 8/28/99 , J.S. Havard wrote:

>One thing we should do on these macines.  Use SCSI for everything!  And
>while we are at it, use the Qbus.  I think there is enough documentation
>out there that one can figure out how it works.  :-)  What's the
>speed/bandwidth limitations on the Qbus?  Might have to change it, make it
>SuperQ or something.

SCSI yes.  Q-bus no.  Get real.  No one is going to produce cards for this
beast since the market is so small.  You are going to have to use a commodity
bus such as PCI to get peripherals.  If Compaq were to make a new VAX, you
can be use it would be PCI based with no ISA.  


>And speaking of Qbus cards, definitely need to make multi-function cards,
>if possible.  Save space, save energy, save a bunch of chemicals need for
>extra cards, etc.

Q-Bus is asynchronous bus.  There is little or no timing.  That makes it
hard to speed up.

-- 
Matt Thomas               Internet:   matt@3am-software.com
3am Software Foundry      WWW URL:    http://www.3am-software.com/bio/matt/
Cupertino, CA             Disclaimer: I avow all knowledge of this message