16 Jan
2017
16 Jan
'17
3:21 p.m.
From: Al Kossow <aek at bitsavers.org>
On 1/15/17 10:02 AM, Jay West wrote:
Was it possible to configure an Access system with a mix of a 21MX and 2100?
(I'm not challenging the assertion; it just never occurred to me...)
Actually, the thing I'm calling a 21MX is listed in the components list as a
"1000". Perhaps this implies that it (or they) was running one of the RTE
operating systems.
~~
Mark Moulding
I'd have to say my HP-2000 systems that are
running are the rarest that
I'm aware of.
So I fairly strongly suspect that my running HP-2000's are the only ones
left, anywhere.
probably true.
http://www.computerhistory.org/collections/catalog/102682887
is probably an Access system, I never looked to see if it has the
interprocessor comm link 
16 Jan
16 Jan
8:23 p.m.
Mark wrote...
--------------------
Was it possible to configure an Access system with a mix of a 21MX and 2100?
(I'm not challenging the assertion; it just never occurred to me...)
--------------------
According to the documentation - specifically "no". Both processors must be
the same type.
However, after digging in to it year ago, I see no reason that it shouldn't
work and others on the list said they were fairly certain that it did work.
--------------------------
Actually, the thing I'm calling a 21MX is listed in the components list as a
"1000". Perhaps this implies that it (or they) was running one of the RTE
operating systems.
------------
Most of the designations were pure marketingspeak, and on top of that who
knows what happened in shops out in the field. Operators often did things
that were perfectly ok but not sold that way.
In the end.... HP1000 meant a 21MX M, E, K, or F - which was 2105, 2108,
2112, 2109, 2113, 2111, 2117. I think some later AXXX systems were also
considered HP1000's, but that's out of my area (too new).
Hard to tell just by looking if that machine is an HP2000 system. Some
indicators to look for:
Dual Processors
12920/21 (or the older mux set) boards and the processor interconnect cables
(+4x12566)
By studying what boards are in which slots in both processors
IOP firmware on a FAB (can't be in a FEM I don't believe, due to hard coded
I/O addresses)
Must have mag tape, cannot run without it.
Any HP-IB devices is a certain clue that it's NOT an access system (nor any
Hp2000 system).
But the above is just best guess (other than the IOP microcode)... because
there are plenty of examples of those items in non-Access HP2000 systems and
even NON-hp2000 systems. 2000E used only one cpu (and I think another prior
system as well) for example. Dual cpus was written up by HP as "heres how
you can slave an additional cpu for special applications", etc.
So the best way is to take a snapshot of both rear card cages showing the
extractor handles and I can then most likely determine with a fair (but not
conclusive) amount of certainty.
J
10:32 p.m.
On Mon, Jan 16, 2017 at 5:23 PM, Jay West <jwest at classiccmp.org> wrote:
In the end.... HP1000 meant a 21MX M, E, K, or F - which was 2105, 2108,
2112, 2109, 2113, 2111, 2117. I think some later AXXX systems were also
considered HP1000's, but that's out of my area (too new).
The L-Series 2103L and the A-Series A400, A600, A600+, A700, A900,
A990 were all called HP 1000 systems. They maintained software
compatibility with previous generation HP 1000 computers, although the
I/O interfaces used by the L-Series and A-Series were incompatible
with the previous generation HP 1000 computers.
I have a couple of A900 boxes that I need to get RTE-A running on them someday.
17 Jan
17 Jan
9:43 a.m.
-----Oorspronkelijk bericht-----
Van: cctech [mailto:cctech-bounces at classiccmp.org] Namens Glen Slick
Verzonden: dinsdag 17 januari 2017 4:32
Aan: General Discussion: On-Topic and Off-Topic Posts
Onderwerp: Re: What's the rarest or most unusual computer-related item
On Mon, Jan 16, 2017 at 5:23 PM, Jay West <jwest at classiccmp.org> wrote:
I've an A600 in a 'cooler box' and a A990 with a 7912 drive combination.
If you need a pre-installed RTE hpi-image let me know.
-Rik
In the end.... HP1000 meant a 21MX M, E, K, or F - which was 2105,
2108, 2112, 2109, 2113, 2111, 2117. I think some later AXXX systems
were also considered HP1000's, but that's out of my area (too new).
The L-Series 2103L and the A-Series A400, A600, A600+, A700, A900,
A990 were all called HP 1000 systems. They maintained software compatibility
with previous generation HP 1000 computers, although the I/O interfaces used
by the L-Series and A-Series were incompatible with the previous generation HP
1000 computers.
I have a couple of A900 boxes that I need to get RTE-A running on them
someday.
9:58 a.m.
My rarest item is a Diehl Alphatronics a very rare combination of computer/calculator
it's a same kind machine as the HP 9820A or some Wang calculators from the era (early
70ties).
I also have the service manuals for this machine and some spares to keep it running.
Other rare items in my collection are the HP 9821A actually a HP 9820A with a cassette
drive like the HP 9830.
And a HP 9831A which is basically a HP 9825A with firmware to run HP 9830 basic and a
different keyboard, but the firmware also works 1n the HP 9825A.
I also have part of a memory core module(6 layers) from an IBM 1401.
-Rik
11:33 a.m.
I wouldnt be surprised if I were the only one with a Philips PTS mini, or
rather a set of spares that can be combined into one. The PTS series is a
swedish development, based on Philips P800 hardware, but with a lot of extra
adapters so it could be used for banks, airlines, etc.
BTW : I'm still looking for a 5 MB drive, called PTS 6876. It is also known
under other (Philips) names.
/Nico
----- Original Message -----
From: Rik Bos
To: 'General Discussion: On-Topic Posts'
Sent: Tuesday, January 17, 2017 3:58 PM
Subject: RE: What's the rarest or most unusual computer-related item
My rarest item is a Diehl Alphatronics a very rare combination of
computer/calculator it's a same kind machine as the HP 9820A or some Wang
calculators from the era (early 70ties).
I also have the service manuals for this machine and some spares to keep
it running.
Other rare items in my collection are the HP 9821A actually a HP 9820A
with a cassette drive like the HP 9830.
And a HP 9831A which is basically a HP 9825A with firmware to run HP 9830
basic and a different keyboard, but the firmware also works 1n the HP 9825A.
I also have part of a memory core module(6 layers) from an IBM 1401.
-Rik
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5 comments
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participants (5)
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glen.slick＠gmail.com -
hp-fix＠xs4all.nl -
jwest＠classiccmp.org -
mark＠markesystems.com -
nico＠farumdata.dk