On Wednesday, May 7, 2025 at 20:37, Holm Tiffe via cctalk wrote:
> Dave a Z80 has an 4 Bit ALU, but isn't essentially a 4-bit processor.
I'm not familiar with the Z80 internals. However, the 2200 theory of
operation manual states, "The eight 4-bit File Registers are used as
general purpose reg
On Wednesday, May 7, 2025 at 0:50, Steve Lewis via cctalk wrote:
> But back on the original Wang question: I still can't find high
> resolution images of it's CPU board. According to 1991 discussion here
> on the 2200B, there is also mention of the system not really having an
> instruction set, B
On Tuesday, April 22, 2025 at 8:34, Christian Corti via cctalk wrote:
> Are you shure that this is not a multi-page TIFF file?
It is indeed, and to save anyone else the trouble of downloading it, the
file contains only every other page of the spec (i.e., pages 1, 3, 5...).
So only about half a
Kurt,
On Saturday, June 3, 2023 at 9:33, Kurt Nowak via cctalk wrote:
> Does anyone have any tips on how to get at it since it's buried in the
> VME chassis. I was thinking of having an extension card made but
> thought I'd ask here and see what others have done first.
I don't know anything ab
On Tuesday, November 15, 2022 at 23:15, Ali via cctalk wrote:
> Does anyone have a REASONABLY priced source for 6" x 14" anti-static
> bags with zip lock tops?
I bought a few dozen in several sizes, with zip-lock and plain tops, a
couple of years ago from McMaster-Carr. Search their site for "
On Tuesday, April 5, 2022 at 17:52, Daniel Moniz via cctech wrote:
> This is a long shot, but on the off chance anyone else on the list
> shares some of my particular weirdnesses, anyone got a line on the
> *patches* for Embarcadero (nee Borland (nee Starbase (nee Premia)
> CodeWright?
>
> I hav
On Tuesday, January 11, 2022 at 17:56, Stan Sieler via cctalk wrote:
> I *think* it was some kind of authentication failure (e.g.,
> incorrectly reporting "ok"), but I'm not sure.
>
> I do know I wrote a several page article about it, and how certain
> coding practices led to it, but I can't *fi
On Saturday, September 11, 2021 at 21:31, Chris Zach via cctech wrote:
> Ok, thanks!
You're welcome.
> I just tried mine again, it's a dud so I am going to have to figure it
> out. First step was to see if the rectifier had any voltage so I
> disconnected the + side and checked it with a voltme
On Wednesday, September 15, 2021 at 9:00, Al Kossow via cctalk wrote:
> PFT made MOD-U-LINE MCLS modular aluminum enclosures (sides, top and
> front/back).
>
> The only information on the web is
> https://www.ceitron.com/passive/pft.html
>
> Does anyone still have a copy of their brochure?
I do
On Thursday, September 9, 2021 at 21:30, Chris Zach via cctech wrote:
> Quick question: I've been cleaning out and repairing an HP5061 supply
> for a 1000 computer. However I didn't take a picture of the 4 boards
> when I pulled them and I want to make sure they go in the right places.
>
> Fro
On Thursday, September 2, 2021 at 8:16, Gavin Scott via cctech wrote:
> P.S. The HP Museum has the CE handbook for the 37 and Micro 3000, but
> it's in the 3000 Micro XE section. You can find it by searching within
> the Documents page linked at the bottom of the left side navigation
> bar.
>
>
On Monday, August 16, 2021 at 22:46, Wayne S wrote:
> I asked because i was curious if what you wanted to do could not be
> done in Acrobat.
Never having used Acrobat, I cannot say.
-- Dave
On Monday, August 16, 2021 at 14:20, Wayne Sudol wrote:
> Out of curiosity, is there a reason you do not use Acrobat for
> creating pdfs?
Primarily because I have not purchased a license for Acrobat. Also, when I
started scanning manuals ten years ago, Al Kossow recommended tumble, which
work
On Sunday, August 15, 2021 at 1:20, Alexander Schreiber wrote:
> My current toolchain for that:
Thanks; that was quite helpful.
One aspect that I find of great assistance in navigating large PDF manuals
is original page numbers. Often a manual will contain references, e.g., to
"page 4-13" or
On Sunday, August 15, 2021 at 12:55, Kevin Parker wrote:
> I think it used to be called Byte Range Serving i.e. it would only
> serve up the page requested so URL's like
> somewebsite.com/myfile.pdf#page=4 would only send page 4 to the browser
> - I think this is what you are talking about
That'
On Saturday, August 14, 2021 at 12:22, ben via cctech wrote:
> I tend to have my PDF's on portable device, so PDF's need to be easy
> to use on those devices.
Linearizing keeps PDFs as complete files but rearranges (and expands) them
internally so that individual pages can be rendered from a sub
On Saturday, August 14, 2021 at 11:04, Al Kossow via cctech wrote:
> Jay Jager is trying to deal with scanning manuals with colored text
> and backgrounds. Is your workflow for dealing with this around
> somewhere?
I'm still using the same set of programs that I sent to you in April 2016
(as im
On Friday, August 13, 2021 at 17:23, Alexandre Souza wrote:
> Is any kind of standard, recomendation, group, mail list, to discuss
> the subject?
I am not aware of any. I started with Al Kossow's basic recommendations,
modified slightly:
- scan at 600 dpi
- use TIFF G4 where feasible
-
Is it still useful to linearize PDFs?
I've been scanning and PDFing manuals for 16 years, and I've been
linearizing them regularly. My understanding is that this made them
accessible on a page-by-page basis in Web browsers without requiring a
complete file download first. But given the increa
On Wednesday, February 3, 2021 at 9:25, ED SHARPE via cctech wrote:
> Indeed this site is great for reference but alas are too lo-res for good
> museum display images.
They appear to be scanned at 150 dpi.
The ones here are scanned at 300 dpi:
http://hparchive.com/hp_journals
On Monday, October 5, 2020 at 8:25, Chuck Guzis via cctech wrote:
> So increasing the mask for block length wouldn't seem to be a problem,
> assuming that SIMH could support it.
SIMH could be written to support it (I'm the maintainer-by-default of the
tape handling portion of SIMH). I don't kno
On Sunday, October 4, 2020 at 16:00, Chuck Guzis via cctalk wrote:
> A 16MB tape block is impossibly large in any case.
The HP 3000 mag tape diagnostic attempts to write a single record from BOT
to EOT, which unfortunately fails under simulation due to the 16 MB
limitation. In hindsight, it w
On Friday, October 2, 2020 at 13:51, Al Kossow via cctech wrote:
> Those would already be broken with Bob's use of large negative numbers
> for physical end of tape and 'bad block is here' (you don't get to know
> how big that bad block was, so that is hell with tapes with
> variable-length record
On Wednesday, September 16, 2020 at 8:19, Lee Courtney via cctech wrote:
> Al - it would be a Very Good Thing to get those APL ROMS dumped when
> possible.
It would be good as well to dump the Series III main instruction set ROMs,
assuming they're socketed. Bitsavers has a Series II microcode l
On Thursday, July 2, 2020 at 11:06, Curious Marc wrote:
> Thanks a lot.
You're welcome.
> Anyone wants me to dump the DS/1000 rev 1826 ROMs or are these already
> available?
To my knowledge, they are not available.
> What´s the CBL ROM? The one that´s on the cable interface card?
No, it's a
On Sunday, June 28, 2020 at 22:20, CuriousMarc via cctech wrote:
> I also have a 91740-80033/34/35 set which I don't know what it is. Does
> anyone know?
Those are DS/1000 revision 1826.
Page 3-130 of the HP "Communicator/1000 for Software Update 6.0"
(5951-6201, December 1992) has a full list
On Saturday, June 27, 2020 at 14:48, grant--- via cctech wrote:
> 12992-80011
> 91740-80070
> 91740-80071
> 91740-80072
>
> there is a set of 91740 on bit savers but with a suffix of 67-69 ?
These are the original DS/1000 ROMs (date code 2003) without the 7974
loader extension. That was added
On Tuesday, April 28, 2020 at 17:56, Tony Duell via cctech wrote:
> The HP2748 is a common-ish example of this type of un[i]t.
David Collins of the HP Computer Museum and I just recently completed
reading some 200+ paper tapes from the museum collection. He used a 2748
coupled with a custom A
On Friday, April 17, 2020 at 9:02, Alan Perry via cctech wrote:
> But the really interesting thing is that the copyright date on the
> "primary" document is AFTER the date in the footers of the "inserted"
> pages.
Sometimes an update contains a replacement title page (containing the
update date
On Friday, April 17, 2020 at 18:06, Antonio Carlini via cctech wrote:
> pdftk works well for managing pages and PDFs.
I'll second that. It's been invaluable for combining PDFs (such as when a
supplier insists on delivering its general catalog in individual sections),
as well as extracting subs
On Thursday, April 16, 2020 at 23:53, Frank McConnell wrote:
> The folks who did the 3000 manuals didn´t do that very often. What we
> got were almost always update packets that simply replaced pages in
> their manuals.
To be fair, the 1000 (DSD) manuals were updated by replacement pages also.
W
On Thursday, April 16, 2020 at 23:18, Frank McConnell wrote:
> Sometimes I have come across shrink-wrapped manuals and later updates,
> and scanned them as found. I wouldn´t want to deny other people the
> opportunity to apply updates to manuals, you know?
Oh yes, especially the ones that would
On Thursday, April 16, 2020 at 8:52, Alan Perry via cctech wrote:
> 1. One document is a software installation manual in a loose leaf
> binder with other documents. It has a title page, tables of contents,
> etc., several chapters, and then it gets interesting. It has several
> appendix sections (
On Wednesday, April 8, 2020 at 13:42, David Williams via cctalk wrote:
> I have some old tapes from my Honeywell 66/60 GCOS days that I
> sometimes wonder if I could still get dumped.
A number of folks have 800 NRZI/1600 PE/6250 GCR 1.2-inch tape drives
connected to PCs via SCSI interfaces that
On Tuesday, April 7, 2020 at 13:19, David Williams via cctech wrote:
> First I want to say again how much I appreciate your assistance.
You're very welcome.
> Up until now my only experience with this system was as a HS student
> first learning to program and never had any access to the system
On Tuesday, April 7, 2020 at 18:28, David Williams via cctalk wrote:
> Still have a box of paper tapes from back then that I suspect I'll
> never be able to do anything with again but the pack rat in me refuses
> to let go. Every so often I consider trying to decode them again.
Assuming that you
On Monday, April 6, 2020 at 13:47, David Williams via cctech wrote:
> The first few tries I didn't see any messages, it just went on to the
> enter date and time and start up but when I'd check the account's
> directory there was nothing there.
As I noted, I'm not that familiar with TSB (I'm an
On Monday, April 6, 2020 at 23:53, David Williams via cctalk wrote:
> Access is set up and running fine already so things should have already
> been configured for it I'd have thought.
The simulator executable always starts up with a default hardware
configuration (a 32K 2116 CPU, no extra firm
On Monday, April 6, 2020 at 20:39, David Williams via cctalk wrote:
> The problem I'm having is to load it I have to:
>
> [...]
>
> 2) Select the S-register and clear the display. Set bits 15 and 0. Set
> bits 11 through 6 to the low number (high priority) octal select code of
> the magnetic t
On Monday, April 6, 2020 at 9:20, ED SHARPE via cctech wrote:
> For some reason I do not remember having to enter each and every
> file name to load it in to a real 2000f but then again it has
> been 40 years!
You can enter just the account names, which will restore all of the dumpe
On Saturday, April 4, 2020 at 21:54, David Williams via cctech wrote:
> I've been able set up Simh with 2000F TSB and everything is working
> fine. Using the latest release I can find out there, HP2100 release
> 29. Now I'd like to be able to install some of the Contributed
> Software Library but
On Friday, September 13, 2019 at 18:31, Charles via cctalk wrote:
> I'm using a slightly older SIMH and user's guide (3.8 something). This
> SIMH will not allow Set Console Serial, apparently
Serial support is not present in versions prior to 4.0.
On Friday, September 13, 2019 at 20:56, Charle
On Friday, September 13, 2019 at 15:42, Charles via cctalk wrote:
> I could use a hint... I have a USB to current-loop (Volpe) interface
> board, and Windows 7 on my laptop does recognize it as COM4 at 110
> baud. So far so good. No problem hooking it up to my ASR-33 Teletype.
>
> Now I'd really
On Monday, August 12, 2019 at 15:48, Guy Sotomayor Jr via cctalk wrote:
> I´ll see about firing it up and if that goes well (anyone have
> suggestions for this type of mini?)
You didn't list the cards in the rear I/O cage (the IDs should be on the
card ejectors). However, if you have a 12821A HP
On 2/16/19 7:55 AM, Bill Gunshannon via cctalk wrote:
> So, I used SIMH to do an install of a complete OS on an RA81 disk. I
> would like to move this to a real disk and try it on a real PDP-11.
Note that SIMH always writes disc images in little-endian format,
regardless of host platform. If
On Wednesday, September 12, 2018 at 21:01, Comcast via cctalk wrote:
> It´s possible to run hp2000 access (or earlier versions) using simh.
>
> You´d just need an interface for your teletypes.
Specifically, SIMH's HP2100 simulator will run HP 2000E, F, and Access
Time-Shared BASIC with external t
On Friday, May 11, 2018 at 11:29, Al Kossow via cctalk wrote:
> scanned, and uploaded to
> http://bitsavers.org/pdf/hp/21xx/interfaces
Very much appreciated, thanks.
-- Dave
On Wednesday, May 9, 2018 at 16:51, Al Kossow via cctech wrote:
> https://www.ebay.com/itm/163039837440
This card also functions as the Privileged Interrupt Fence in RTE operating
systems to permit the use of privileged I/O drivers, such as the one for
the 12920A terminal multiplexer.
On Tuesday, May 8, 2018 at 0:36, Mike Loewen via cctech wrote:
> Does anyone know if a non-HP terminal will work as the console for
> a HP 3000 Series 37?
Page 3-7 ("Minimum Requirements for Terminals") of the "Series 37 System
Processing Unit Self-Paced Hardware Training Guide" (32450-90001
On Monday, April 30, 2018 at 10:22, Al Kossow via cctech wrote:
> If it doesn't turn up in what I have, I'll check with Jeff to see if he
> still has it.
If I'm not imposing, could you also please ask him for:
OPERATING AND SERVICE MANUAL
12653A LINE PRINTER INTERFACE KIT
FOR 2767A LINE PR
On Sunday, December 31, 2017 at 14:03, Mark J. Blair via cctalk wrote:
> That appears to work perfectly. I don't know what I did wrong when I tried
> that before.
You mentioned that you "tried putting the system console on a telnet port,"
so you might have used the "SET CONSOLE TELNET" command (
On Sunday, December 31, 2017 at 12:58, Mark J. Blair via cctalk wrote:
> Is there any way to attach/detach media images in SIMH without halting the
> simulation?
See section 3.15, "Remote Console" in the SIMH User's Guide. The "SET
REMOTE TELNET" command will allow you to attach and detach whil
Marc,
On Sunday, October 8, 2017 at 11:48, CuriousMarc wrote:
> Thanks, I wasn't aware of this subtlety.
You're welcome.
> But this is for the 7970E only, right?
Right.
> Can you boot a 21MX from a 7970B tape with the standard boot ROM?
Yes.
The boot ROM data transfer loop is just a ti
On Tuesday, October 3, 2017 at 20:58, Jay West via cctalk wrote:
> Wasn't there some deal where a M/E/F could drive it at 45ips but a 2100
> couldn't (next lower speed)??
You might be thinking of the limitation regarding the use of the 12992D
Magnetic Tape Loader ROM with a 1000 M-Series and a
Marc,
On Monday, July 10, 2017 at 22:24, CuriousMarc wrote:
> I thought I did, but what I have is the HP 12845B Line Printer interface
> card, for which I could find the documentation.
Thanks for checking. Yes, that does seem to be the more common card. As
far as I know, the 12653A was used
Does anyone have an HP 12653A line printer interface?
It is used to connect an HP 21xx/1000 CPU to an HP 2767A line printer. I
am unable to find a manual for this card, but the HP "General Purpose
Register Diagnostic" manual suggests that it is a modified HP 12566B
Microcircuit interface. I'm
The fourth release of the HP 3000 Series III simulator is now available
from the Computer History Simulation Project (SIMH) site:
https://github.com/simh/simh
This release adds the HP 32234A COBOL II Extended Instruction Set firmware,
enabling execution of programs produced by the COBOL II
The third release of the HP 3000 Series III simulator is now available from
the Computer History Simulation Project (SIMH) site:
https://github.com/simh/simh
This release adds the cold dump facility. Entering the DUMP command
simulates pressing the ENABLE and DUMP front panel buttons. The c
On Friday, July 22, 2016 at 17:43, Rodney Brown wrote:
> http://www.abc.net.au/news/2016-07-22/vintage-computer-museum-revives-hp21
> 16a-founder-dies/7638458
>
> A keen mountaineer who died trekking in Tibet has left a rare computer
> collection behind as his legacy.
A touching article; thanks
On Friday, July 8, 2016 at 8:57, SPC wrote:
> So I assume that we can make operative programs *only* with the COBOL
> 74 compiler, Isn't so ?
The software kit contains two COBOL compilers:
- a COBOL '68 compiler invoked with the :COBOL command
- a COBOL '74 compiler invoked with the :COBOLII
The second release of the HP 3000 Series III simulator is now available
from the Computer History Simulation Project (SIMH) site:
https://github.com/simh/simh
This release adds a simulation of the HP 2607, 2613, 2617, and 2618 line
printers and supports the use of custom VFU tape images, as w
I am pleased to announce the release of a simulator for the HP 3000 Series
III computer system. It is available from the Computer History Simulation
Project (SIMH) site:
https://github.com/simh/simh
The simulator runs the MPE-V/R operating system, supports a selection of
simulated disc and
On Monday, March 7, 2016 at 22:14, Mattis Lind wrote:
> I have been going to our HP 21MX paper tapes that come with a M-series
> system that we received many years ago:
>
> http://www.datormuseum.se/documentation-software/hp-paper-tapes
>
> I tried to check if they already were available online
On Sunday, September 13, 2015 at 8:42, Jay West wrote:
> 3) Any I/O instructions in the loader are automatically patched during
> the transfer (based on switch register bits 11 through 6) so that the
> correct I/O address (device) is referenced.
It's actually a bit more nuanced than this. What o
On Sunday, September 6, 2015 at 13:41, Jay West wrote:
> Here's a non-exhaustive but useful list of compatible parts for each:
>
> [...]
>
> 4K parts
> Signetics N82S141
> Harris 7641
> MMI 6341
Some additional part numbers:
- AMD Am27S31
- National DM87S474
> 8K parts
> Signetics N82S181
On Tuesday, June 23, 2015 at 22:14, jwsmobile wrote:
> Also I don't recall the Data Products ever scaling as fast by
> restricting columns. At least our 2230, 2260 and 2290 UC only and 96
> character set printers didn't. Got the same speed regardless of the
> columns on those Data Products print
On Tuesday, June 23, 2015 at 11:42, Marc Verdiell wrote:
> Thanks David.
You're welcome.
> I might put NiMH batteries instead
That may not be advisable, given the continuous constant-current trickle
charger in the CPU power supply. The Panasonic "Nickel Metal Hydride
Technical Handbook"
On Monday, June 22, 2015 at 15:39, Jay West wrote:
> The disc drives appear to be HP 7900A drives.
I agree. A few pictures for comparison here:
http://www.hpmuseum.net/display_item.php?hw=275
The printers appear to be Data Products 2310 drum printers, also sold as
the HP 2767A; photos:
h
On Monday, June 22, 2015 at 11:44, Marc Verdiell wrote:
> Now if I can find similar cells I will be able to reconstruct the pack
> inside the same shell.
Ni-Cds are still available from Allied Electronics, Mouser Electronics, and
others, although they are declining in availability compared to a
On Sunday, June 21, 2015 at 16:43, Marc Verdiell wrote:
> On this machine the battery connectors are just two pronged, + and -,
> so no thermistor connection apparently.
That marks it as an "A-version" power supply.
> I just need to find new small 12V lead batteries that fit.
Note that the "
On Saturday, May 23, 2015 at 17:48, Marc Verdiell wrote:
> I think I should retrace the path of technology evolution. Start
> getting it up with paper tape tests and BCS. That probably means working
> mostly in assembly and getting to know the most basic level of the
> machine. Which is just about
On Thursday, May 21, 2015 at 23:45, Marc Verdiell wrote:
> I took a quick look inside to confirm
>
> - there is a DCPC and a MEM protect card
Good. (To avoid confusion with the Memory Expansion Module, the latter
card is usually designated MP or Memory Protect.)
> - No MEM card in slot 112
On Tuesday, May 19, 2015 at 23:12, Marc Verdiell wrote:
> Thanks, very useful info, and the manual is indeed what I was missing.
You're welcome.
> But now where to find the DMS, with two cards in particular, that's not
> going easy to find both that match...
First, are you sure that the machin
73 matches
Mail list logo
