OK, I just picked up a PDT-11/150 today for $5 at a local junk store. I
know that it is some sort of PDP-11, but that is about the extent of my
knowledge. Main thing I'm wondering at the moment is what was its intended
use?
Also what OS's run on it? I would guess RT-11 will run on it, but not much
else.
Zane
| Zane H. Healy | UNIX Systems Adminstrator |
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| healyzh(a)holonet.net (alternate) | Classic Computer Collector |
+----------------------------------+----------------------------+
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>>Also what OS's run on it? I would guess RT-11 will run on it, but not much
>>else.
>I don't know of anything else which ever ran on it... (I would be
>interested to know if there ever was).
There is support for running tasks on PDT's via RSX-11S. While
that's an operating system, it *isn't* a development environment :-).
Tim.
>1) A quad-height Qbus?? (Unibus?) Emulex TU03. I first thought this
>might be a SCSI controller, but a closer look indicates that it probably
>isn't. This board is populated with mostly 14 and 16 pin DIPs, a couple
>PALs, 40 pin DIPs, and 28 pin PROMs. My next guess would be a tape
>drive interface.....
This is a TC13. A Unibus Pertec-Formatted tape controller,
emulating TS11/TU80.
>2) A couple of Seagate hard drives, complete with a power supply on a
>mounting channel. These are labelled: Equipment No.: PA4B2A, and on the
>drive itself: 975002-001. What are these?? I'm pretty sure there not
>SCSI, but other than that, I'm puzzled....
What sort of connector? If a 60-pin and a 26-pin, then they're SMD.
The "9750" part of the part number sounds like a CDC part number -
Seagate bought out CDC's disk drive business many years ago.
Tim.
In my scrounging trips, I've managed to pick up the following mysteries:
1) A quad-height Qbus?? (Unibus?) Emulex TU03. I first thought this
might be a SCSI controller, but a closer look indicates that it probably
isn't. This board is populated with mostly 14 and 16 pin DIPs, a couple
PALs, 40 pin DIPs, and 28 pin PROMs. My next guess would be a tape
drive interface.....
2) A couple of Seagate hard drives, complete with a power supply on a
mounting channel. These are labelled: Equipment No.: PA4B2A, and on the
drive itself: 975002-001. What are these?? I'm pretty sure there not
SCSI, but other than that, I'm puzzled....
Stan
>OK, I just picked up a PDT-11/150 today for $5 at a local junk store. I
>know that it is some sort of PDP-11, but that is about the extent of my
>knowledge. Main thing I'm wondering at the moment is what was its intended
>use?
It is a PDP-11, using the LSI-11/2 (and 11/03) chip set. It can have up
to 60kb of user-available memory, a console line (programmed like a DL),
3 other serial lines, an asynch/sync line and a printer port.
The floppy disks are 8" RX01 compatible drives. The interesting thing is
that this device can format the disks, not by some special format command
procedure... it formats a sector when it writes it...
The on-board ROMs know about RT-11 Queue elements, so the RT driver
simply calls the ROM to handle the I/O, and the ROM returns if there
was an error, or when the request is complete.
>Also what OS's run on it? I would guess RT-11 will run on it, but not much
>else.
I don't know of anything else which ever ran on it... (I would be
interested to know if there ever was).
When you put in a PDT-bootable diskette, you type '@@' (two at-signs)
at the console terminal to cause it to boot.
I have heard from some that a version with EIS/FIS is called a
Mini-Minc... I have several PDTs that I have upgraded myself.
Otheriwse, if you locate a EIS/FIS emulator written years ago
by Ian Hammond, you can get EIS/FIS programs to run on it.
Megan Gentry
Former RT-11 Developer
+--------------------------------+-------------------------------------+
| Megan Gentry, EMT/B, PP-ASEL | Internet (work): gentry!zk3.dec.com |
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| Compaq Computer Corporation | addresses need '@' in place of '!' |
| 110 Spitbrook Rd. ZK03-2/T43 | URL: http://world.std.com/~mbg/ |
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+--------------------------------+-------------------------------------+
Hi again,
More of yesterdays finds. Picked up a pile of AIM 65 computers with the
keyboards and power supplies all mounted on sheets of plywood. I found one
Motorola "Educational Computer" in the pile. It says "Copywrite 1981 by
Motorola, Inc." on it and has a 68000L8 CPU. Unlike the AIMs, it does not
have a display or keyboard. How did you interface to one of these? Does
anyone have the pinouts and/or the instructions for this?
Joe
ARe MINC-11 parts scarce?
Anybody out there with one of these?
Also: Whazza 'FSD' disk drive?
Jeff
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Naw, no docs, just the thing. :^P
On Sat, 08 May 1999 15:48:07 Joe <rigdonj(a)intellistar.net> writes:
>Kewl! Did you get any manuals or pinouts for it?
>
>
> Joe
>
>At 02:11 PM 5/8/99 -0500, you wrote:
>>Yeah, There's one just like it living in the 68000 trainer
>>I got from wirehead last fall. Too kewl.
>>
>>On Sat, 08 May 1999 12:48:10 Joe <rigdonj(a)intellistar.net> writes:
>>>At 06:01 PM 5/8/99 +1, Derek wrote:
>>>
>>>>Motorola used this term for several 68K and 68xx SBC systems.
>>>>A good information is at
>>>>http://people.delphi.com/paulrsm/68k/mecb/mecb.htm
>>>
>>> Bingo! That's it. The picture matches it exactly. Thanks for the
>
>>>URLs.
>>>
>>> Joe
>>>
>>
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sorry about the mistitled post sent earlier . . .
Dick
-----Original Message-----
From: Richard Erlacher <edick(a)idcomm.com>
To: Discussion re-collecting of classic computers
<classiccmp(a)u.washington.edu>
Date: Saturday, May 08, 1999 3:57 PM
Subject: Re: manuals available
>I've run into Intersil's ICM7228 once again and find my data book doesn't
>cover that number. It's date coded '87, so It's probably in the last book
I
>got from Intersil before they were acquired by GE.
>
>Has anyone got a complete sheet on this part? I believe it is a
>multi-decade counter/display driver, or maybe just a display driver.
>
>thanx
>
>Dick
>
Yeah, There's one just like it living in the 68000 trainer
I got from wirehead last fall. Too kewl.
On Sat, 08 May 1999 12:48:10 Joe <rigdonj(a)intellistar.net> writes:
>At 06:01 PM 5/8/99 +1, Derek wrote:
>
>>Motorola used this term for several 68K and 68xx SBC systems.
>>A good information is at
>>http://people.delphi.com/paulrsm/68k/mecb/mecb.htm
>
> Bingo! That's it. The picture matches it exactly. Thanks for the
>URLs.
>
> Joe
>
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