This room is not well appointed or organized yet, but its purpose is to collect information about my computer collection and provide helpful links for myself and others who are restoring or maintaining similar systems.
Warren Toomey says:
If you're prepared to spend US$100, then you can obtain
a personal-use license for all the PDP-11 Unixes as well as the 4BSD Unixes
for the Vax. Details at:
The FAQ is available at:
Share and enjoy.
a new site is born
for finding obsolete and tested products.a new site is born
www.digital-equipment.com for finding obsolete and tested products.
Eric Smith says:
In a press release dated April 18, 2000, SCO has announced
that they have dropped the $100 processing fee for an "Ancient" Unix License:
They say that it will be possible to download code directly from their site.
As far as I can tell, they haven't yet made it available. Once one has an
Ancient Unix License, one can also get other Unix code derived from Unix
editions through 7th Edition, and 32V, from PUPS, the PDP Unix Preservation
And Marshall Kirk McKusick's CSRG Archive CD-ROM set (four discs, $99.00),
which contains all of the BSD releases:
Jerome Fine says:
FREE E11 emulator (Thank you John Wilson
While surfing for info on the 11/60 WCS I came across the CMU
"Universal Library" with on-line versions of Gordon Bell et al's excellent
Enjoy. Note, if you work off their web index then you may need to replace "beta.ulib.org" with "www.ulib.org".
Paul Webster says:
David Gesswein says:
The former pay IHS Caps datasheet service is now
available for free from
It has a good collection of datasheets for obsolete components not available
from manufacturer sites. You do have to register and enter a company name.
I used the pay CD based system when my work had it but have not done much
with the online version.
Zane Healy says:
You'll want to take a look at the following document.
It should tell you what 1.2MB floppy drives you should be able to use as
an RX33 if you've got a new enough revision RQDX3 disk
ftp://sunsite.unc.edu/pub/academic/computer-science/history/pdp-11/hardware/third-party-disks.txt Finding a 5.25" floppy drive that will work will be a little tricky probably and require hunting through a bunch of old PC's. I dug a couple up at a local scrappers. For information on what numbers such as M7555 on the boards correspond to see the following list: http://world.std.com/~mbg/pdp11-field-guide.txt Look for a program called putr.com on ftp.dbit.com It works for RT-11 floppies at least. See: http://minnie.cs.adfa.oz.au/PUPS/
Chris Doran says:
Bernhard Baehr says:
You can download the PDP-8/E Simulator from
The simulator is published under the GNU General Public License, and the
source code is available at http://www.han.de/~bb/pdp8e/pdp8e.html, too.
Jerome Fine says:
While trying to track down information on a particular
peripheral, I ran across "Preserving Computing's Past: Restoration and
Simulation", a paper from 1996. I, and most of the long-time members of the
list, have no doubt seen this before, but there's enough membership turnover
that I thought it worth another mention. The simulator will look very familiar
to many folks here....
Will Kranz says:
What I know about XXDP (including how to download it
from the internet) is at
The document has some big holes in it, and contributions would be gratefully
accepted. However it is a starting point.
Ian King says:
That Shannon Hoskins guy who posts here is, in my experience,
reputable, and he has tons of old PDP-11 stuff. Here's his contact
Pacific Data Systems
Chris Doran says:
Look them up on the "Field Guide" at
Roman Mazi says:
Searching for PDP related books I've found interesting
Nicholas Zymaris says:
My DEC page has been moved for the same reason;
the new URL is