OK, its really a CP/M box with some PLATO software, but it *does* have
the PLATO specific keyboard. Maybe I could write something in Tutor!
After investigating all the options, UPS still was the cheapest to get
it out of the UK though. Unless someone wants to check it as baggage
when flying back from the UK to the US for me?
--
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Pete Turnbull <pete at dunnington.plus.com> skrev:
> On 19/05/2007 11:35, Johnny Billquist wrote:
> > > "Glen Slick" <glen.slick at gmail.com> skrev:
>
> > > >>> > >PMI memory goes in slots 1 and 2, CPU goes in 3
>
> > > > From my understanding of this after looking at various manuals
this is
> > > > true for an 11/73 or 11/83 with an H9872 backplane in a BA23
box, but
> > > > not for an 11/84.
>
> BA23 is H9278, actually.
Doh! The numbers keep getting twisted around. :-)
> > > Correct. So if people could stop assuming that an 11/84 have a
q-bus, we
> > > would get a long way towards clearing this up.
>
> Except that it does have a (short) QBus :-)
Wire-wise, yes. Protocol wise the manuals imply that some signals don't
behave the same, even though they are named the same.
I haven't had time to really analyze this to see what signals actually
change, and in which way, so I'm mostly quoting the manual on this.
> OK, we're agreed that the standard config for an 11/83 puts the memeory
> before the processor, and the standard config for an 11/84 puts the
> memory after the processor :-)
Yes. That we agree on, and that is probably the most important piece.
> The P-series 11/84 which I've found described in one of the later 11/84
> manuals used an MSV11-R, which is a normal QBus memory, not PMI.
Well, according to the field guide, that *is* PMI memory. :-) But not
ECC memory like the MSV11-J.
Johnny
--
Johnny Billquist || "I'm on a bus
|| on a psychedelic trip
email: bqt at softjar.se || Reading murder books
pdp is alive! || tryin' to stay hip" - B. Idol
Did you ever find a service manual or schematic? I am looking for the
same thing.
Philip "Scott" Haun
Senior Instrumentation Specialist
Indyne (KICS) Photo & Media Services KICS-700
Phone 321.853.7842
Fax 321.853.7750
http://kics.ksc.nasa.gov/services/video/index_photo.cfm
*** Please reply to me directly. I'm way behind on my ClassicCMP reading...
For various reasons, none of them good, I have a couple of computers,
and some cables & parts, that _must_ disappear from my house ASAP. At
this point, I'm not worried if I get anything for them. But I won't turn
it down cash (or good beer) in return. I'd rather not have to ship them,
having lack of time.
Here's a quick list of the machines. IIRC, they don't have HDDs. More
info available upon request.
- Mac SE/30, with network card not installed.
- Cardinal PC10. 386 CPU, looks like a Mac SE, with a 10"(?) color screen.
- Digital Multia.
- Digital Alpha 200MHz? with plans on how to adapt an ATX power supply
for it. IIRC, there might even be a ready made adapter.
- Dell Optiplex P4 1GHz, 512MB RAM. Spare MB w/CPU, PCI riser & power
suppply.
- Compaq PIII 600(?) small desktop, 256MB RAM (?)
- SuperMicro P4DP6 server class system, 1GB RAM, 2GHz Xeon (can take 2).
Full tower case, power supply.
- Box o cables - power, SCSI, serial, paralell.
- random parts.
--
--- Dave Woyciesjes
--- ICQ# 905818
--- AIM - woyciesjes
"From there to here,
From here to there,
Funny things
are everywhere."
--- Dr. Seuss
> RARE EXTERNAL HARD DRIVE & 8" FLOPPY SYSTEM RARE (#330121685672)
Chrislin OEMed AED Qbus disc/floppy controllers.
You need an AED card to make this work (with the correct configuration prom).
There is a breakout board in the back to take the 50 pin cable that comes in
and fans it out to the 34/20 and 50 pin cables needed by the drives.
I just verified that M8637-Ex cards works fine in both 11/83 and 11/84
systems. The same goes for M8637-Dx cards.
I don't think I have any M8637-Bx or -Cx cards, so I can't try that.
So to make it clear: MSV11-JD and MSV11-JE works fine in both Q-bus and
Unibus systems.
Johnny
--
Johnny Billquist || "I'm on a bus
|| on a psychedelic trip
email: bqt at softjar.se || Reading murder books
pdp is alive! || tryin' to stay hip" - B. Idol
It's in decent shape, but far from perfect. That hinge
things has probably seen better days, but it's still
holding on. I hate to throw this thing out, but I'm a
gonna if no one claims it.
____________________________________________________________________________________
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> On 19 May 2007 at 21:52, r.stricklin wrote:
>
> > I wondered if anybody could help me identify what it might be. Parts
> > have date codes in 1985; chips of note are 32k in 70ns 4Kx4 SRAM;
> > intel 8086, 8259, and 8254; and a pair of 12-bit monolithic DACs. I/O
> > is by one DE9m and one DB25m.
>
> There's a possibility that this is a Wavepak Data Acquisition board
> from Computational Systems, Inc. (CSI). It came out around 1984 and
> was very popular for those needing FFT-type data acquisition. It
> could also be a similar unit from Data Physics--both CSI and DPC were
> early players in PC FFT data acquisition. Their boards were
> freakishly expensive, if memory serves--in excess of $5K.
If it were a data acquisition board surely it would have ADC's not DAC's?
The use of DAC's surely implies an output board of some kind. The use of
standard DB type connectors and lack of trim-pots etc. would seem to support
this.
Jim
>From: ard at p850ug1.demon.co.uk (Tony Duell)
>
> >
> > You know, with a 8086 onboard, that thing has to have a ROM/PROM on
> > it somewhere with firmware for the 8086. Why not dump it and see if
>
>Why?
>
>It would be entirely possible to have the software for the 8086 in the
>RAM that's on that board. Load the RAM from the ISA bus, then enable the
>8086 (say by de-assertign the reset pin) and let it run.
>
>I have at least one DSP card for the ISA bus that had no ROM on it. Just
>the (ROMless, I hasetn to add) DSP, a lot of high-speed RAM, the analogue
>interface chip and buffer amplifiers and an ISA interface circuit.
>
Hi
I have a Modem board with a DSP that has no ROM. It loads from
the system. If there is a ROM it would most likely have such a name.
Do remember that the 8086 was a full 16 bit bus. There would most likely
be 2 ROMs and the ascii may be split across the two to read as on contiguous
text from the bus.
Dwight
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