On Thu, 25 May 2000, Tony Duell wrote:
> 4 rows of 32 64Kbit RAM chips is 4 rows, each of 4*64K bytes. Or a total
> of 16 * 64K bytes, or 1 Mbyte.
>
> These boards are larger than you thought, I think (!).
Thanks very much for this correction; someone was definitely right
about mentioning that I got up on the wrong side of the bed today.
> Are you sure they're Unibus? The reason I ask is that I've seen similar
I meant to say that they appear to be Unibus.
> boards (hex height, NatSemi) made for VAX11/730 (and I would guess
> 11/750) systems. They may look like Unibus boards, but the pinouts of the
> A and B edge connectors is totally different!
How do I tell the difference? I guess I should dig up my 11/7xx handbook
and one of the PDP-11 handbooks and make some comparisons.
--
R. D. Davis
rdd_at_perqlogic.com
http://www.perqlogic.com/rdd
410-744-4900
Received on Thu May 25 2000 - 21:27:12 BST