From: Pontus Pihlgren
Sent: Monday, March 07, 2011 1:26 AM
On Sun, Mar 06, 2011 at 11:09:09PM -0700, Richard wrote:
> On a trip to Seattle last week, Rich Alderson was
nice enough to show
> me around the Living Computer Museum's hardware collection. Here are
> captioned photos from my trip.
>
<https://picasaweb.google.com/legalize.slc/LivingComputerMuseum#>
Nice! The custom flipchip storage and PDP-12 look
familiar. Is this
where Robert Krtens collection went?
Indeed, those came to us from Robert.
Also, I can't wait for the MASSBUSS to PC
converter to become available!
Perhaps I can then help bring another PDP-10 back to life.
Rich: Is there anything about the converter that is
specific to the
PDP-10 ? Or can it be used with an 11 as well?
Hi, Pontus,
The MDE (Massbus Disk Emulator) is in theory agnostic about what lives at
the other end of the Massbus cable. The prototype board is not quite fast
enough to keep up with an 11/40's 2-instruction spin loop on disk transfers
(2.2 microseconds)--the status register update can get lost. Rev B uses
faster processors (both the Rabbit handling data transfer functions between
the MDE and the disk server, and the SX48 control register update processor)
and larger dual-port RAMs, and will get past that bump easily.
We are about to start system tests of Rev B, so watch this space. (Or our
web site. :-)
Thanks,
Rich
Rich Alderson
Vintage Computing Sr. Server Engineer
Vulcan, Inc.
505 5th Avenue S, Suite 900
Seattle, WA 98104
mailto:RichA at
vulcan.com
mailto:RichA at
LivingComputerMuseum.org
http://www.LivingComputerMuseum.org/