On Jan 6, 17:58, Tom Leffingwell wrote:
>
> Does anyone have a list of the function of the switch settings on
> the PDP DRV11-B / M7950 card? Also, is there an easy way to tell whether
> the device is at least recognized by the system? Something like a "show
> dev" on an alpha would be nice.
If you know its address, try to access the CSR from ODT. For example, if
the CSR is at 772410 (which is the default) then if you type that address
at the ODT prompt, followed by a '/' (without the quotes), you should see
the contents of the CSR. If there's nothing at that address, trying to
read it will cause a bus timeout, and all you'll get is a question mark and
a new prompt.
> Also, can anyone point me to a document that gives a good overview
> of the LSI-11 bus, so that I can understand what I'm doing when I change
> these settings (such as base and vector settings)?
Probably the Microcomputer and Memories Handbook 1982 is your best bet, as
it covers the 11/23, LSI-11 and 11/2, various memory boards (including your
MSV11-D and MSV11-L), and has sections on the processors, architecture, and
so on. You sometimes see them on EBay. I think that was the last (or
2nd-last) QBus CPU/memory handbook. There are at least one or two earlier
editions that would have the same general infomation, but not the specific
bits about 11/23 and contemporary memory, or 22-bit operation.
There's a companion volume, PDP-11 Microcomputer Interfaces 1983-84, which
you'd find useful. It has all the information about the BA11-M/N/S
backplanes and many peripherals, including your DRV11-B.
Apart from that, have you looked at the Micronotes at
http://www.ibiblio.org/pub/academic/computer-science/history/pdp-11/hardwar…
?
--
Pete Peter Turnbull
Network Manager
University of York
On Jan 6, 11:26, Jerome Fine wrote:
> (a) My experience with upgrading the backplane is VERY satisfactory. It
> was done by someone with sufficient skills with a soldering iron. And
yes,
> wire-wrap wire was used. The specific model was the VT103 which was
> a 4 * quad backplane, i.e. 4 quad boards or 8 dual boards. And
terminating
> resistors did not seem to be needed - perhaps because of so few boards.
Many of the QBus processors have a set of terminators on the CPU card, and
the QBus spec allows for the use of short bus length with light loads and
no extra terminators. The definitions of "short" and "light" are subject
to variation at short notice :-)
> (b) With regard to the use of the M8044 and M8045 memory boards, at
> one time I did that mod as well - using only 4096 bytes for the IOPAGE
> addresses (from 170000 to 177776). However, if I remember correctly
> (perhaps Megan can help with this aspect), it ONLY worked with either
> the RT11SJ or RT11FB monitors - i.e. UNMAPPED. As soon as I
> use the 11/23 board WITH the MMU activated, the MMU hardware under
> RT11XM forced the full 8192 bytes of the IOPAGE to be used - there
> was no other option. In addition, with the 11/73, it was NOT possible to
> use a 4096 Byte IOPAGE AT ALL
This sounds familiar. And to be honest, if you are running anything other
than RT11SJ, you probably have a lot more than 28KW of memory anyway, so
the saving is minimal. My advice would be not to bother trying to squeeze
another 2KW out of the system.
--
Pete Peter Turnbull
Network Manager
University of York
Is $200 a reasonable price for a PDP-11 KDJ11-BF CPU board?
--
Bruce Robertson, President/CEO +1-775-348-7299
Great Basin Internet Services, Inc. fax: +1-775-348-9412
http://www.greatbasin.net
On Jan 7, 16:05, Dan Wright wrote:
> real problem is that outlook is brain-dead... The message is sent as
> mulipart/MIME, with the first part being the text of the message and the
other
> part being the signature. Clearly outlook doesn't understand how to
process
> MIME the right way; it should recognize that part 1 is plain text and
display
> it, and that part 2 is something it doesn't know about. I've talked to
others
> (not on this list) about it, and the only mailers that seem to have this
> problem are 1) outlook, and 2) some e-mail appliances.
Nope, zmail and MediaMail both see it as multipart but don't see the first
part as the main text part, so they don't show the text straight off, just
a multipart attachment.
--
Pete Peter Turnbull
Network Manager
University of York
I've found info in the micronotes about upgrading a Micro/PDP-11 to use
the KDJ11-A CPU, but I've been unable to find out anything regarding the
new versions of this board. In particular, will a KDJ11-BF drop into
a Micro/PDP-11 that currently has a KDF11B-BH CPU? The box also has a
Clearpoint 1 MB RAM board; any idea of this will work as well?
Any help is appreciated!
--
Bruce Robertson, President/CEO +1-775-348-7299
Great Basin Internet Services, Inc. fax: +1-775-348-9412
http://www.greatbasin.net
this may help
i am 38 years old, so there is nothing about my typing style
where i am trying to be cute.
i collect any computer i can get my hands on.
i am developing an operating system and a multimedia program
to create movies.
i use a newer computer to produce records.
i am also working out, as i was talking about
in the original thread that got off track, a distributed
os to control robots and also a custom computer
to do the same.
i guess thats it.
joee
Howdy,
Is there anyone here that would be interested in rescuing an
Astronautics ZS-1, or maybe a couple?
I am currently the Systems Admin for the Astronautics Technology Center
in Madison Wisconsin. Our facility has been sold and our staff may, or
may not, be relocated. Either way, the plan is to scrap the several ZS-1
mini-supercompters that we designed and built here. If I can find
someone who has the resources to pick up these machines, I may be able
to persuade our management to OK it.
Unfortunately, the time window for doing this is very limited. Our
headquarters wants to come dismantle these machines ASAP.
These machines are are large, they require a lot of power, and will
_NOT_ be supported in any way by this company. Each machine is a tall
double-wide rack with a third rack for a Storagetek 9-track tape drive.
If you need more information on what these machines are, or are capable
of, I suggest searching Google. If you have any specific questions,
please feel free to e-mail me.
Later,
Jon
Jon Auringer
auringer(a)tds.net
> -----Original Message-----
> From: SP [mailto:spedraja@ono.com]
> Hi, Christopher. Mine is one Sequent Symmetry 2000
> with four 486 processors and 256 Mb of memory.
> I comes with one extension box with over 10 Gb of
> SCSI disks. It uses Dynix like OS.
I believe all Sequent machines use Dynix. It's all a question of which version you need.
I suppose some of them will run windows nt too, but why waste a perfectly good computer?
> I'm in treats to get one Sequent Symmetry 5000, with
> 4 Pentium processors, 1Gb of memory and 10 Gb
> of disk.
I'd like to see how a Sequent that new will handle, say, 16 or 32 cpus. They may very well be capable of it.
> The best of all os the possibility to get another one Sequent 5000
> same than the other but... with one 65 Gb storage Extension box
> of 180 cm high.
> Good find if reliable. Don't think so ?
Certainly, and I've never heard that they are unreliable.
Regards,
Chris
Christopher Smith, Perl Developer
Amdocs - Champaign, IL
/usr/bin/perl -e '
print((~"\x95\xc4\xe3"^"Just Another Perl Hacker.")."\x08!\n");
'
> -----Original Message-----
> From: Zach Malone [mailto:Diff@Mac.com]
> > > > If it doesn't have wheels, it isn't really a computer.
>
> What about rackmount gear?
Generally counts since the rack would have wheels, I guess. :)
Regards,
Chris
Christopher Smith, Perl Developer
Amdocs - Champaign, IL
/usr/bin/perl -e '
print((~"\x95\xc4\xe3"^"Just Another Perl Hacker.")."\x08!\n");
'
Hi, Christopher. Mine is one Sequent Symmetry 2000
with four 486 processors and 256 Mb of memory.
I comes with one extension box with over 10 Gb of
SCSI disks. It uses Dynix like OS.
I'm in treats to get one Sequent Symmetry 5000, with
4 Pentium processors, 1Gb of memory and 10 Gb
of disk.
Both systems can be take with OS, Tapes, Documentation
and so.
The best of all os the possibility to get another one Sequent 5000
same than the other but... with one 65 Gb storage Extension box
of 180 cm high.
Good find if reliable. Don't think so ?
Greetings
Sergio
-----Mensaje original-----
De: Christopher Smith <csmith(a)amdocs.com>
Para: 'classiccmp(a)classiccmp.org' <classiccmp(a)classiccmp.org>
Fecha: lunes, 07 de enero de 2002 17:58
Asunto: RE: Sequent Symmetry S2000-450
>Hi Sergio,
>
>Sequent was/is relatively stingy with information. They are now owned by
IBM, who wouldn't even talk to me about my old machine.
>
>That said, the Symmetry series may be the closest thing to a real parallel
computer that was ever done with Intel CPUs. They're very cool machines. I
don't know the exact models you're seeing. Mine is a Symmetry S81, which
accepts up to 30 386/16Mhz CPUs and accompanying Weitek co-processors. It
is in a coke-machine sized cabinet, and impresses people even without the
CPU cards ;)
>
>Regards,
>
>Chris
>
>Christopher Smith, Perl Developer
>Amdocs - Champaign, IL
>
>/usr/bin/perl -e '
>print((~"\x95\xc4\xe3"^"Just Another Perl Hacker.")."\x08!\n");
>'
>
>-----Original Message-----
>From: SP [mailto:spedraja@ono.com]
>
>
>It's possible I could obtain one Sequent Symmetry S2000-450
>in a relatively short place. A similar system can be viewed in
>this eBay address:
>
>http://cgi.ebay.de/aw-cgi/eBayISAPI.dll?ViewItem&item=1311505028&ed=1009557
004
>
>The system comes complete, with software, hardware and documentation.
>It need three pallets to be transported.
>
>There is another opportunity to get one Sequent Symmetry S5000
>that uses 4 Pentium processors and 1 Gb of memory, but this
>is in private negotiation.
>
>Do Somebody has information about these systems ?
>They appears to use Four processors 486, a Numa architecture
>to share memory, and one version of Unix named Dynix.
>
>Is there some porting of the Gnu utilities to it ?
