- test-drb@ccmp.vtda.org - classiccmp.org

by imp＠bsdimp.com

Greetings I'm looking for any and all information I can find on the DEC Rainbow ethernet cards. I know for sure that two exist, both plugged into the communications slot that most rainbows have filled with a hard disk controller. DEC made one, and Univation made the other. Univation also advertised a ARCnet card, but I found that only in one issue of Digital Review and the next issue moved up to Ethernet. So far all I've been able to find is DECnet DOS/Rainbow 1.0 which might have drivers for the former on it. I've seen no trace of the latter. Also, is there a convenient way to extract teledisk disks these days to something like an image file on Linux/FreeBSD? MAME almost can do this (I can read it in with the Rainbow emulator and diskcopy to a flat file that I can then examine), but I was hoping there was a tar-like tool to do the deed. Warner

4 years, 7 months

1
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Linearizing PDF scans

by jdbryan＠acm.org

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

4 years, 7 months

1
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IBM PC diagnostics disks

by rsmilward＠frontier.com

I have these 5-1/4" diagnostics disks but no need for them. If you're interested, I'll send them to you for the cost of the postage from Durham, NC. * Diagnostics for IBM Personal Computer AT, ver. 2.03 copyright 1981, 1986 maroon disk label, p/n 6183111 * Advanced Diagnostics, ver. 2.20, copyright 1981, 1986 dark blue label, p/n 6139804 They are in excellent physical condition. Sorry, I don't have the manuals. (I used to work for a ComputerLand store in '81-'82 and probably acquired them there.) They might be available for download somewhere, but these are the physical, displayable versions. **Richard

4 years, 7 months

4
5
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WTB: Amiga 3000 front/floppy

by ethan＠757.org

Scored an A3000. Prior owner cut a hole where the floppy goes and mounted a PC floppy in there. Looking for an original front plate and the matching floppy drive to restore machine to original look. - Ethan

4 years, 7 months

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30 yrs. ago

by c.murray.mccullough＠gmail.com

30 years ago this month the IBM PC debuted at $1565. Some say this began the era of mass-computing and it is now what classiccmp.org <cctalk at classiccmp.org> is all about! For those interested in the OS world LINUX is 30 years old. Time has passed but this is what classic computing is all about. Happy computing. Murray ?

4 years, 7 months

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VT101 free to good home, pick up in w. Oregon

by invi＠vivaldi.net

It was sitting in the trash. No keyboard, no power cord. Case was open and some of the bundles of wires inside are disconnected, so I doubt it's in working condition. I'm not much of a hardware collector, so I was hoping to put it in the hands of someone who would like it.

4 years, 7 months

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30 yrs. ago

by c.murray.mccullough＠gmail.com

My apologies. ? It was 40 years ago that the IBM PC became a retail computer this month. Murray ?

4 years, 7 months

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How do CRT's age?

by healyzh＠avanthar.com

Odd question, how well do CRT?s age? Just the CRT, if what I think exists, is actually there, they?ve never been in Oscilloscopes. Zane

4 years, 7 months

3
3
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ISO Laserjet I/II/III firmware

by charlesmorris800＠centurytel.net

On 8/13/21 7:00 PM, cctalk-request at classiccmp.org wrote: > Message: 1 > Date: Thu, 12 Aug 2021 13:10:43 -0400 > From: Ethan Dicks<ethan.dicks at gmail.com> > To: Al Kossow<aek at bitsavers.org>, "General Discussion: On-Topic and > Off-Topic Posts"<cctalk at classiccmp.org> > Subject: Re: ISO Laserjet I/II/III firmware > Message-ID: > <CAALmimnjndcx5G0mPoP7sPb-c+Aocibms_RfCDQFW7aA5bPs3A at mail.gmail.com> > Content-Type: text/plain; charset="UTF-8" > > On Thu, Aug 12, 2021 at 10:48 AM Al Kossow via cctalk > <cctalk at classiccmp.org> wrote: >> I suspect interest in emulating them will die out once they get past the 68000 models. > I may still have a II, and I definitely still have at least one > (functional) III and a 4Si > > I still use my 4M/L all the time - Postscript + LocalTalk + IEEE1284. > It's a great little printer. > > -ethan I have a IIp+ that I got for $2 at a hamfest around 15 years ago... I have repaired it several times (most recently, visibly bad electrolytics in the switching PS startup circuit). In fact that's the second time the power supply has failed - the first time was years ago and I just replaced the board. Now it's crinkling the bottom of pages... there used to be a kit to fix that. I love those old "bricks". Although mine is like my grandfather's axe (new head and new handle but it's still my grandpa's axe) :) The trick nowadays is finding toner cartridges that weren't just refilled, but actually rebuilt (with a new wiper blade). -Charles

4 years, 7 months

1
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Early '80s Motorola Semiconductor Reference - anyone?

by bear＠typewritten.org

Anyone have an early ?80s Motorola semiconductor reference manual? I am attempting to repair a Boschert power supply from ~1983 that is full of Motorola parts marked as 1027 (DO-42ish), 1077 (TO-3ish), 1078 (DO-5ish), etc. It would be extremely helpful to know their specifications, or ideally how to cross-ref them to ?standard? parts. ok bear.

4 years, 7 months

7
12
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ISO Laserjet I/II/III firmware

by aek＠bitsavers.org

There has been some work going on emulating early Laserwriters in MAME and I was wondering if anyone still has boards or firmware dumps from Laserjets. It seems most have been scrapped. "nobody collects printers"

4 years, 7 months

15
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howto bitsavers BASIC-11 v2 disk image under simh

by fritzm＠fritzm.org

Hi folks, Could anybody spare a clue or some suggestions on how to access the contents of: http://bitsavers.trailing-edge.com/bits/DEC/pdp11/floppyimages/rx02/BASIC-1… under simh? I haven't had any luck mounting the contained BASIC.DSK e.g. on simh RY under RT-11. Looking through a dump of the image, there seems to be an "RT11A" signature. Tried putr under dosbox as well, but it seems to hang mounting the image. Suggestions appreciated! --FritzM.

4 years, 7 months

3
6
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DQ11 prints needed

by jnc＠mercury.lcs.mit.edu

> From: Jay Jaeger > BTW, I have only the sales brochure for the DM11, near as I can tell. > 114X-00871-1715/J . If you want me to drag the box of sales lit from > the garage, and scan it, me know - could do it next week. No major need for it; I found the DM11-AA Tech Manual in my PDP-11 fiche set. So I doubt the brochure would answer any of the remaining questions; we'd probably need the Engineering Drawings for that. But there's so little on the DM11, it might be interesting to see the brochure. The big issue with the TM is that it has the same erroneous diagram for i) the boards in the DM11-A, and ii) their locations in the backplane, as the one in DEC-11-HDMBA-A-D, "DM11-BB modem control option manual", on pg. 1-5. The diagram there lists: M7245 Transmitter E M7244 Transmitter D M7245 Receiver M7242 Control C M7241 Control B M7240 Control A So two 'M7245's, with different functions listed! And no M7243... The DEC "Spare Module Handbook" shows: M7243 "DM11 transmitter D" M7244 "DM11 transmitter E" M7245 "DM11 receiver" so the M7245 probably _is_ the receiver; but this list shows that the 'transmitter E' card is the M7244, not the M7243 (as would be if the top line >from the module diagram had a typo '5' for '3'. Hence my observation that it would probably take takethe ED tostraighten thins out. But as I said recently, no real need; the thing is a total canine, and I doubt very much that there are any left in the world. Noel

4 years, 7 months

1
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MTI MXV22M

by glitch＠glitchwrks.com

Does anyone have experience running the MTI MXV22M? It's a dual-height QBus card that emulates RX02 but uses a 5.25" 96 TPI drive. I've got a small heap of them and we're trying to get them going. When trying to format diskettes using the process documented in the manual, the drive selects for maybe a second then deselects, and we get a drive not ready error. The controller isn't using the ready line, as the SA-460 for which it is designed doesn't supply it. No traces physically connect to pin 34. Since we're close to out of ideas, we've also plugged in a pair of Shugart SA-800s, on the idea that maybe the MXV22M is close enough to the MXV22 to show some signs of life. It doesn't give a drive not ready error, and it will step the heads like it's really formatting, but never loads the heads. Happy for any input on this one! Thanks, Jonathan

4 years, 7 months

3
2
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CPU Tests

by david＠thecoolbears.org

My KA655 CPU is freezing during the power up sequence, after test number 04: KA655-B V5.3, VMB 2.7 Performing normal system tests. 40..39..38..37..36..35..34..33..32..31..30..29..28..27..26..25.. 24..23..22..21..20..19..18..17..16..15..14..13..12..11..10..09.. 08..07..06..05..04.. Any suggestions as to what might be wrong?

4 years, 7 months

4
4
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Atari 800 to C64

by kl＠2k.ca

https://redd.it/p24fo8 Turns ur 800 in a c64. Cool

4 years, 7 months

5
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Xerox 820/II 8/16 Prom/Eproms ( Masters ) on e-bay

by Mark＠Misty.com

Hi, I'm not prepared to lay out $200 for these Xerox ROMs, but if I do manage to get them, I'll read and share them. I did not know there were 5.0 ROMs for the 820-II, but it appears there were, and they are included. https://www.ebay.com/itm/184980603844 Mark -- Mark G. Thomas <Mark at Misty.com>, KC3DRE

4 years, 7 months

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Xerox 820/II 8/16 Prom/Eproms ( Masters ) on e-bay

by Mark＠Misty.com

Hi, I'm not prepared to lay out $200 for these Xerox ROMs, but if I do manage to get them, I'll read and share them. I did not know there were 5.0 ROMs for the 820-II, but it appears there were, and they are included. https://www.ebay.com/itm/184980603844 Mark -- Mark G. Thomas <Mark at Misty.com>, KC3DRE

4 years, 7 months

1
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DQ11 prints needed

by jnc＠mercury.lcs.mit.edu

> From: Jay Jaeger > ROTFL - especially given the earlier case, and since Noel knows about > you folks quite well.. The joke's actually on you: DQ11_RevL_Engineering_Drawings_Aug75.pdf 2021-08-09 14:05 ^^^^^^^^^^^^^^^^ I'd actually looked in http://bitsavers.org/pdf/dec/unibus earlier that morning (before I sent my request), and by chance I still had that browser window open. I suppose I could have done a screen-shot... > From: Al Kossow >> You aren't by any chance sitting any DM11-AA manuals, are you? :-) > probably. there are still quite a few drawings to go through That was mostly a joke. I mean, there are no DM11-AA documents of any kind online, so it would be interesting to get some (there are still a few un-answered questions); but there's a good DM11 entry in "pdp11 peripherals and interfacing handbook", 1972 edition, that enabled me to produce a decent entry: https://gunkies.org/wiki/DM11_asynchronous_serial_line_interface which is probably more than good enough - the interface is actually a dog, I doubt any still exist. Noel

4 years, 7 months

2
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PC floppy disk sets avaialble free

by mike_t_norris＠hotmail.com

Hello, During a clear out I found the following floppy disk sets, I am not sure if they are of any use to anyone: Pathworks V5.1 (35 disks) plus LAN Mgr Setup - these are copies not originals Mastering Windows Programming with Borland C++4 (Sams - don't have the book though!) Borland SQL Link for Windows for Interbase 3.3 (3 disk) Paradox for Windows V 4.5 (2 disk) Paradox for Windows Object Converters for Forms (1 disk) Turbo C++ for Windows 3.1 (7 disks) Proto Gen V2.2 (1 disk) Adaptec 7800 Family Manager Set for Win NT 3.5 or Win 95/98 (3 disks) CDs - Adaptec EZ-SCSI Deluxe Edition V5 Easy CD Creator & DirectCD All are untried and I have no means to read them, but have been stored in a clean environment, some still in their original wrapping, free except for the cost of postage (I am in the UK). Regards Mike Norris

4 years, 7 months

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DQ11 prints needed

by jnc＠mercury.lcs.mit.edu

> From: Al Kossow > Date: Mon Aug 9 14:05:07 CDT 2021 Wow! That was _amazing_ speed, to get that uploaded so quickly (even if you had already scanned it in), considering I only posted my request at 14:32 EDT! Thank you very, very much: that allowed me to complete the DQ11 page on the CHWiki: https://gunkies.org/wiki/DQ11_NPR_Synchronous_Line_Interface The MM was unclear on many points (including the backplanes; the MM says, in 2.3.1.2, "double-system unit", making it sound like the option version uses a 9-slot backplane, but it's actually two 4-slot units). You aren't by any chance sitting any DM11-AA manuals, are you? :-) (The weirdest interface I've ever seen; the shift registers are kept in main memory, resulting in many DMA cycles _per character_.) Noel

4 years, 8 months

2
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DQ11 prints needed

by jnc＠mercury.lcs.mit.edu

Anyone have a set of DQ11 prints? The DQ11 MM is missing some important info, which is apparently only on the prints. Noel

4 years, 8 months

3
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r.stricklin: regarding SysV/68 and SysV/88 tapes

by matti.nummi＠hotmail.fi

I have tried to reach You Raymond. Presumably You have following tape images: Sys V/68 Graphic Services Extension R3V6 XW02.10(IR06) Sys V/88 R3.2V1.2C BOS Obj UZ88.01 We are trying to build a X environment with some success already for Motorola MVME unix computers. These tapes could help. Can You comment on this (privately). BR Matti Nummi matti dot-char nummi at-char hotmail dot-char fi

4 years, 8 months

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Bell vs gray. The Telephone wars and invention.of telephone etc. History chan. tonight check your TV schedule.

by couryhouse＠aol.com

Bell vs gray. The Telephone wars and invention.of telephone etc. History chan. tonight check your TV schedule. Sent from the all new AOL app for Android

4 years, 8 months

1
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Help reading a 9 track tape

by len＠shustek.com

> On Aug 5, 2021, at 8:39 AM, Jay Jaeger via cctech <cctech at classiccmp.org> wrote: > I know Paul well (we were contemporaries at U. WI). He does not do that very often. He did not indicate any issue with a fire at the building that contains his collection when I last spoke with him. > > He does not actually read "blocks". He reads the tape in an *analog* fashion, and then processes the results with software. That is how he recovered the IBM 1410 system tapes and diagnostics, for example. > > To be honest, I doubt that this content would be such that he would be likely to volunteer. Some years ago, inspired by Paul Pierce's earlier program in Java, I wrote similar software in C to decode the analog waveforms from tapes in a variety of formats: 7-track NRZI, 9-track NRZI, PE, and 6250 BPI GCR, and 6-track NRZI for Whirlwind. https://github.com/LenShustek/readtape As a one-time physics major, I *am* interested in the Schoonschip content. I've offered to James Liu to give it a go if he can't get someone like Chuck to read it in a more straightforward fashion.

4 years, 8 months

6
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VCF west is happening this weekend

by dkelvey＠hotmail.com

It will be at the CHM. The museum is still closed but VCF will be happening. To be consistent with current Santa Clara covid conditions, bring your mask. see: https://vcfed.org/wp/festivals/vintage-computer-festival-west/ I hope to see you all there. Dwight Vintage Computer Festival West 2021 ? Vintage Computer Federation - VCF<https://vcfed.org/wp/festivals/vintage-computer-festival-west/> Updated 2021-05-23. VCF West is for everyone! Computer geeks, families/children, students, collectors, IT professionals, curious onlookers? VCF West 2021 vcfed.org

4 years, 8 months

5
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Help reading a 9 track tape

by jimliu＠umich.edu

Thanks for feedback and offers to assist. I received the tape from one of the maintainers of Schoonship at CERN, and it was probably made around 1978 at SLAC. For some background, Tini Veltman developed Schoonship in the 1960's at CERN on the CDC 6600. My understanding is that he more or less insisted on coding in assembly since he thought FORTRAN or other high level languages would just get in the way and slow things down. The code was maintained by Veltman and Strubbe well into the 1970's, but its future was held back by being so closely tied to CDC hardware. In the mid 1970's, Strubbe began a conversion of Schoonschip to IBM S/360 and S/370. It was sort of a curious technique, as far as I gathered. The idea was to first translate CDC COMPASS source to an intermediate PL/I like language. But then, instead of using the IBM PL/I compiler, a bunch of macros were developed to implement the PL/I like language in IBM assembly. This conversion was never fully completed for reasons unknown to me. Later on, when Tini joined the University of Michigan (that's where I'm located), he realized that Schoonschip needed to be updated. But the update was ... instead of CDC assembly he decided on m68k assembly. (At this time, in the early 1980's, C probably would have been the natural language of choice.) Moreover, he insisted on developing his own toolchain (assembler, linker, etc). This was before my time at Michigan, but basically he ported Schoonschip to just about all the m68k machines of that era (Sun, Atari, Amiga, Mac, NeXT, and others I am not familiar with). We have a pretty good collection of m68k code (http://www-personal.umich.edu/~williams/Vsys/index.html), but nothing earlier. Getting back to the tape, I'm pretty sure it has Strubbe's PL/I like code as it is an archive of the PL/I conversion. It may also have CDC source, but that is less obvious until we can see the contents. The CDC source is historically the most relevant, and I am hoping it exists on the tape. - jim -- James T. Liu, Professor of Physics 3409 Randall Laboratory, 450 Church Street, Ann Arbor, MI 48109-1040 Tel: 734 763-4314 Fax: 734 763-2213 Email: jimliu at umich.edu

4 years, 8 months

14
36
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XENIX for Tandy 2000

by binarydinosaurs＠gmail.com

Hi folks, Does anyone happen to have any links for XENIX on a Tandy 2000? Cheers, -- Adrian Graham Owner of Binary Dinosaurs, the UK's biggest private home computer collection? t: @binarydinosaurs f: facebook.com/binarydinosaurs w: www.binarydinosaurs.co.uk

4 years, 8 months

1
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FTGH for pickup in So Cal v3: Power Macs, DuoDock, Compaq 486, ...

by spectre＠floodgap.com

A number of the prior systems were picked up or other arrangements made, and a couple more pulled from storage to make room. As before, these are FREE TO A GOOD HOME but you have to come PICK UP from various locations in the Riverside-San Bernardino, CA region. Contact me privately if interested. These remaining machines and peripherals will go to the scrapper on August 14 if not otherwise claimed. NOT WORKING: Network General Sniffer (Compaq 486 portable). Should "just work" with a new power supply, but I don't have any time to deal with it anymore and Wireshark has made it generally obsolete for what I used to use it for. NOT WORKING: Macintosh DuoDock, with key. Doesn't feed; this is usually a capacitor problem. A bit yellowed but otherwise physically intact. I use a different dock with my 2300 so I don't really need this either. PARTIALLY WORKING: 500MHz iBook G3 laptop (snow, not colour) M6497 with tray loader optical drive and power supply. Does boot OS X, but needs a new LCD backlight (mini VGA port works and you can see the display in bright light) and battery is of course toast. Otherwise physically intact except that ex-bro-in-law put grotty stickers on it. PARTIALLY WORKING: Sawtooth Power Mac G4 450MHz. No RAM, no video card, no hard disk. Used to be my file server but had issues with one of the PCI slots. Has optical drive and ZIP with matching Apple bezels. Does power on, but obviously without RAM or a video card (AGP) will not pass POST. Add your own USB keyboard and mouse. Various other items: Apple II Super Serial card with DB-25 670-0020-? (uses 6551 ACIA) and Apple IIe 80 column 64K memory expansion 607-0103-K. Can't test them but both look intact. Kurta Penmouse. Serial and PS/2 connectors. Seems to have a power supply jack (9V) but I don't have the power supply and I don't know if it needs it. Can't test it, no drivers, physically intact. Sun model 411 SCSI CD-ROM. Requires caddy. Won't mount discs, might need a recap. UMAX Astra 2100U flatbed USB scanner with power supply. Powers on. Works with classic Mac OS but probably most systems. No driver disc. Pair of Telular SX5 GSM terminals. These were the server room's backup communication system. They work, but no GSM network to connect to anymore. Might be fun if you set one up. Real serial ports! Real GSM modem! Full kits with power supply. Visual UpTime Select T1 CSU/DSU. Has a Cisco V.35 cable connected and jacks for Ethernet, serial, DSX-1 and T1. Powers on, obviously goes right into Red Alarm since there's no network. You telco nerds will love it. Samsung 17" SyncMaster CRT. Works fine, great shape, just too big to keep around anymore. -- ------------------------------------ personal: http://www.cameronkaiser.com/ -- Cameron Kaiser * Floodgap Systems * www.floodgap.com * ckaiser at floodgap.com -- Never say never again. -----------------------------------------------------

4 years, 8 months

1
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For Sale: FANUC A860 papertape reader with DOSTEK BTR (adapter)

by billdegnan＠gmail.com

FANUC A860-0056-T020 Papertape Reader and DOSTEK 440A BTR https://www.ebay.com/itm/274883740917 Ebay listing includes my project notes. Hopefully someone here will want it. Bill

4 years, 8 months

2
2
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Compilers and languages (Was: Help reading a 9 track tape

by cclist＠sydex.com

On 8/3/21 1:12 PM, Paul Koning wrote: > > >> On Aug 3, 2021, at 3:28 PM, Chuck Guzis <cclist at sydex.com> wrote: >> >> ... >> One of my favorite 6000 bits of code was the register save and restore >> routines (not using CEJ). It was a favorite interview question for >> those job seekers claiming to be proficient in COMPASS. > > ALL the registers, right? I remember seeing that problem description. And later I saw the code, don't remember it but now I know how it is done. Yup, the trick is getting the first 18 bit register saved. Not obvious since normal stores are done through the (A6,X6 and A7,X7) registers. The trick is using RJ instructions to store an indication of each bit of a B-register. After you get one register saved this way, the rest falls out like a stacked deck in Solitaire. --Chuck

4 years, 8 months

1
0
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Europe-based restorer of old mechanical keyboards?

by lproven＠gmail.com

I am not a collector exactly -- I just salvaged a bunch when they were being sent to recycling. My Model Ms are going strong, no bolt mod needed, but I also have 2 Apple Extended II and an Extended I and both, sadly, need some attention. I am almost devoid of electronics skills. Does anyone know of anywhere in Europe that does this kind of repair/refurb work? I do not want to do intercontinental shipping... -- Liam Proven ? Profile: https://about.me/liamproven Email: lproven at cix.co.uk ? gMail/gTalk/gHangouts: lproven at gmail.com Twitter/Facebook/LinkedIn/Flickr: lproven ? Skype: liamproven UK: +44 7939-087884 ? ?R (+ WhatsApp/Telegram/Signal): +420 702 829 053

4 years, 8 months

1
0
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Skew vs. interleave

by mhs.stein＠gmail.com

There's a small discussion on S100computers about the terms 'skew' and 'interleave'. In CP/M documentation 'skew' refers to what's usually called interleave these days, i.e. offsetting sectors on a track to compensate for the fact that by the time the computer has processed a given sector the next one has already passed by, so that the computer has to wait an entire revolution for it to pass by the head again; in other documentation as in Chuck's 22disk for example this is also called 'interleave'. However, in later documentation the meaning of 'skew' seems to have changed to refer to the offset of sectors between adjacent tracks to compensate for the time required to step the head. Can anyone (Fred, Chuck?) shed some light on this apparent double meaning of 'skew'? And if skew was used to describe sector interleave then what was the offsetting of sectors between tracks called? Inquiring minds need to know ;-) m

4 years, 8 months

5
5
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For sale: FANUC Tape Reader and Adapter

by billdegnan＠gmail.com

I put my FANUC tape reader for sale on Ebay, if anyone might be interested:

4 years, 8 months

1
0
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Branching the thread away from Compaq deskpro boards: "What We Have Lost"

by lproven＠gmail.com

This was a talk at a recent Chaos Computer Club congress: https://media.ccc.de/v/rc3-525180-what_have_we_lost#t=1707 ? We have ended up in a world where UNIX and Windows have taken over, and most people have never experienced anything else. Over the years, though, many other system designs have come and gone, and some of those systems have had neat ideas that were nevertheless not enough to achieve commercial success. We will take you on a tour of a variety of those systems, talking about what makes them special. In particular, we'll discuss IBM i, with emphasis on the Single Level Store, TIMI, and block terminals Interlisp, the Lisp Machine with the interface of Smalltalk OpenGenera, with a unique approach to UI design TRON, Japan's ambitious OS standard More may be added as time permits. ? It talks about Lisp Machine OSes, which interest me, but I especially liked that there's a demo of Interlisp as well as the better-known Symbolics OpenGenera. Unlike Genera, Interlisp is now FOSS and there is an effort afoot to port it to modern OSes and hardware and revive it as a Lisp IDE. There's also a not-very-inspiring but all too rare demo of IBM i. It's not pretty but this descendant of OS/400 is the last living single-level store in active maintenance and production. But the big thing that made me link to this after the discussion of DOS/V, Chinese Windows 3.2 and Japanese DR-DOS and DR GEM, was the demo of the final version of Japan's TRON OS. Most people have never heard of TRON but it was extraordinarily widely-used, embedded in billions of consumer electronics products. Well, there was also a desktop-PC version, with its own very rich object-oriented GUI, and this talk contains the only demo of it I've ever seen. -- Liam Proven ? Profile: https://about.me/liamproven Email: lproven at cix.co.uk ? gMail/gTalk/gHangouts: lproven at gmail.com Twitter/Facebook/LinkedIn/Flickr: lproven ? Skype: liamproven UK: +44 7939-087884 ? ?R (+ WhatsApp/Telegram/Signal): +420 702 829 053

4 years, 8 months

13
20
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Reading MT/ST tapes

by len＠shustek.com

>Date: Wed, 28 Jul 2021 18:37:17 -0500 >From: Cory Heisterkamp <coryheisterkamp at gmail.com> > This is a bit of a long shot, but is anyone aware of a successful > method to read IBM Selectric MT/ST tapes? > A museum in Australia has a box of them and are interested in the contents. At the Computer History Museum we sometimes use a software technique to recover data from the analog waveforms on mag tapes. https://github.com/LenShustek/readtape I'd like to try that on MT/ST tapes. Does anyone have a couple of MT/ST tape cartridges with data that I can experiment with?

4 years, 8 months

1
0
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Unidentified IBM Module / Package

by coryheisterkamp＠gmail.com

Does anyone recognize these IBM modules? My gut says late 50?s based on the transistor packages and font. Perhaps for a contract or military system? Thanks- Cory https://www.dropbox.com/s/izitf1lmjqwcbuo/IBM1.jpg?dl=0 https://www.dropbox.com/s/dq8macaubrechkz/IBM2.jpg?dl=0

4 years, 8 months

2
2
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Help reading a 9 track tape

by jimliu＠umich.edu

Hi, I have been lurking for a few years, but thought I'd finally speak up as I just received a 9 track tape purportedly containing the source code to Schoonschip (https://en.wikipedia.org/wiki/Schoonschip). This is a 2400' reel recorded at 1600 bpi based on the labels, and a cursory examination suggests that it is still in pretty good shape (although I am not sure how it was stored over the years). Here is a picture of the tape: https://drive.google.com/file/d/1JgY8QdVDchxubUz39jYn86gEczSvFhcZ/view?usp=… We no longer have any equipment that can read the tape, so I was wondering if anyone may be willing to help or if anyone had suggestions on where to go to get it read. Thanks! - jim -- James T. Liu, Professor of Physics 3409 Randall Laboratory, 450 Church Street, Ann Arbor, MI 48109-1040 Tel: 734 763-4314 Fax: 734 763-2213 Email: jimliu at umich.edu

4 years, 8 months

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Ian Hirschsohn - DISSPLA, Superset Inc. and sad news

by rdawson16＠hotmail.com

As some here know, I collect some dusty deck fortran graphics. We have MOVIE.BYU up and running! (Thanks Douglas Taylor and Emanuel Steibler). Ian built AMD 2901 bit slice hardware to run his graphics, it was called SuperSet, and was very quick for the 1980s. Architecture was 48 bit, A=B op C, similar to DSPs. Compiler processed fortran to this 48 bit 2900 hardware (he wrote the compiler too). Small package, a dormitory size refrigerator with all I/O to drive plotters and graphics terminals. I went to look him up today, as he is not far from me in LA, San Diego, and a fellow R/C flier, and chat about the old Superset days, we did SIGGRAPH many times together. Well, he is dead I find out, killed last year in Mexico is what the news says, buried in a well with his wife. They went often, many times a year. Randy

4 years, 8 months

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Reading MT/ST Tapes

by coryheisterkamp＠gmail.com

This is a bit of a long shot, but is anyone aware of a successful method to read IBM Selectric MT/ST tapes? A museum in Australia has a box of them and are interested in the contents. I'm fairly involved in the global Selectric community and while 1 or 2 MT/ST?s exist, they?re non-functional. I know IBM offered a 2495 Tape Reader for the IBM 360, which could be a starting point with modification, but I suspect those are even scarcer than the MT/ST itself. Even the encoding format appears to be a bit of a secret. Recording is character-by-character, tape spacing controlled by sprocket holes along one edge. https://obsoletemedia.org/ibm-mtst/ <https://obsoletemedia.org/ibm-mtst/?fbclid=IwAR28c5ej69AlF0os1PcykpHCh0Q_yz…> Thanks- Cory

4 years, 8 months

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LSSM quick update

by mloewen＠cpumagic.scol.pa.us

The A/C is in and running! Tomorrow and Sunday we reassemble the exhibit floor and clean up the mess, just in time for the 60-person group tour on Monday. -- Dave McGuire, AK4HZ New Kensington, PA Thanks to all who contributed to the new A/C!

4 years, 8 months

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Reading MT/ST Tapes

by cisin＠xenosoft.com

Yep. And, it was not appreciated when I suggested an interim release between the MT/ST emulator and "Full-ST" to be called "Half Full ST" On Fri, 30 Jul 2021, grif615 at mindspring.com wrote: > Scope Creep.. no telling how many projects died in stalled development. > > On Jul 30, 2021 16:36, Fred Cisin via cctalk <cctalk at classiccmp.org> > wrote: > > On Fri, 30 Jul 2021, Chuck Guzis via cctalk wrote: > > Not really--it's very old technology, (1964), of limited > capacity (about > > 20 KB per tape), was a hideously expensive way to buy a > typewriter > > (about USD$7000 in 1964, or about USD$61,000 today), used > almost > > exclusively in large corporate offices to create form > letters and > > documents. In other words, it was not intended as an > archival medium. > > The effort required in preparing a document was > considerable (one used > > the mini-keypad for various functions). For a memo, it was > easiest to > > use the typewriter as a typewriter. > > There are more interesting things to look at. > > Well, form letters are "important". > But, once microcomputer word processing matured, they could > be done easily > and much better. > > An acquaintance was working on creating an emulation of the > MT/ST, as a > way for those who were familiar with the MT/ST and/or > actually liked it, > to be able to continue unchanged on a microcomputer. > > But, then he started adding features. Besides delaying the > completion > until it was no longer relevant, it was suggested that he > change the name > from "MT/ST" (pronounced "empty ST") to "FULL ST".

4 years, 8 months

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Rich Alderson on-list?

by rich.cini＠gmail.com

Is RichA still on-list? If so, could you drop me a note off-list. Thanks! Rich -- Rich Cini http://cini.classiccmp.org http://altair32.classiccmp.org

4 years, 8 months

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VCF - west?

by cisin＠xenosoft.com

I heard a rumor that VCF is going to happen again! But, I have seen NO MENTION of that on this mailing list. Is it happening? Will everybody be there? It is now relatively short notice, and between that, not having a station wagon or van, and health issues, I won't be able to pack up and bring a suitable mass of stuff to peddle on consignment. -- Grumpy Ol' Fred cisin at xenosoft.com

4 years, 8 months

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Wanted: Windows Driver for Lexar PC Card Reader

by r_a_feldman＠hotmail.com

Does anyone have the Windows (preferably Windows 10) drivers for the Lexar Media GS-UFD-20SA-TP PC card reader? I found a driver online, lexar_card_34806.zip at admirestore.top, but Malwarebytes gives a warning about the download site, so I am hesitant to download that driver. I want to get my old Lexar PC card reader working again so I can read some cards that I used with my Poqet PQ-181. Bob

4 years, 8 months

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Mounting ULTRIX CDROMs on Linux

by a.carlini＠ntlworld.com

I'm running Linux Mint (an ubuntu derivative) and I want to mount ULTRIX CDROM discs to see what I can see. (I'm eventually going to image these, but I presume that will "just work" with dd or ddrescue). They are supposed to be UFS format (according to the net) and that usually means you have to tell mount exactly which option to use (as not all UFS implementations are compatible). I've tried (all the options I can find) and failed: $ sudo mount -t ufs? -o ufstype=44bsd /dev/sr1 /tmp/mount mount: /tmp/mount: wrong fs type, bad option, bad superblock on /dev/sr1, missing codepage or helper program, or other error. The CDROM would appear to be readable 9and I've tried a few anyway): $ sudo file -s /dev/sr1 /dev/sr1: Unix Fast File system [v1] (little-endian), last mounted on /UPS_MOUNT_TAR_SOURCE, last written at Wed Sep 28 16:27:45 1994, clean flag 30, number of blocks 243648, number of data blocks 233295, number of cylinder groups 38, block size 8192, fragment size 1024, minimum percentage of free blocks 10, rotational delay 0ms, disk rotational speed 60rps, TIME optimization A later Digital Unix CDROM behaves the same way with mount and reports this with file: $ sudo file -s /dev/sr1 /dev/sr1: Unix Fast File system [v1] (little-endian), last mounted on /kits/tmp/gendisk17665/mnt, last written at Wed Nov 20 13:38:02 1996, clean flag 3, number of blocks 151168, number of data blocks 150383, number of cylinder groups 24, block size 8192, fragment size 1024, minimum percentage of free blocks 0, rotational delay 0ms, disk rotational speed 60rps, SPACE optimization I also have a few OSF/1 CDROMs, which I assume are also the same format. Any ideas? I can't be the first person to try to do this ... Antonio -- Antonio Carlini antonio at acarlini.com

4 years, 8 months

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RP/M2 by Micro Methods Inc

by dave＠661.org

I found a copy of RP/M2 for the IBM PC by Micro Methods Inc. with manual and some floppies, 8" and 5.25". According to the manual, this was a CP/M compatible operating system. Doing a web search doesn't tell me anything more than a couple offhand comments. Does anyone here know anything interesting about this? -- David Griffith dave at 661.org A: Because it fouls the order in which people normally read text. Q: Why is top-posting such a bad thing? A: Top-posting. Q: What is the most annoying thing in e-mail?

4 years, 8 months

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Compaq Deskpro boards/hard drives from the late 1990s

by kevin_anderson_dbq＠yahoo.com

For a time I had quite a few Compaq Deskpro towers that had acquired (for free) from my employer after they updated to a newer HP Compaq model. These Compaq Deskpros were the white-boxed variety with Pentium III the like processors that date to the later part of the 1990s and into the 2000s. They interested me because they were able to work with the flavors of Linux that were becoming plentiful and useful at the time (like Mandrake, etc.) Anyway, the desktops themselves are gone, as well as the PC keyboards and the monitors that went with them, with this paragraph just setting the scene.... But at the same time I also acquired (pulled) from these same computers and their siblings a whole bunch of wired Ethernet network cards, one or two video cards, a whole bunch of the IDE/PATA 5.25-inch desktop CD drives, and a whole bunch(!) of 10- and 20-GByte IDE/PATA 5.25-inch desktop hard drives. I believe the vintage makes them all PCI cards for the network and video cards. For some reason I must have had it in my head that I would all need these extra cards (and more) to keep these boxes (and other desktops) going into the future when the apocalypse came <grin> ! Now I have no need for any of these parts. I don't want to chuck them to a recycler either, but it is tempting just to get the stuff out of the house (as I need to seriously downsize prior to retirement). Is there a market for any of this that is worth pursing, or is this all too generic and plentiful to worry about? Giving shipping and that, I am not sure how much of this I'd care to deal with this through resale (eBay or privately) versus just dropping it all at the electronics recycling shop (which fortunately I have locally). Just starting to sort this out...I've been meaning to send this e-mail for awhile now. Your collective thoughts? I know most of this is too new for most of your interests... Kevin Anderson, Dubuque, Iowa

4 years, 8 months

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Floppy capacity.

by cctalk＠gtaylor.tnetconsulting.net

I wanted to take a moment to say thank you to everyone who has contributed to the recent threads related to floppy disk capacity. I have found the threads to be very insightful and have saved things off for re-reading when I update my personal notes on the subject. Thank you! -- Grant. . . . unix || die

4 years, 8 months

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OpenVMS Alpha V7.3-2

by mark.darvill＠mac.com

Hi, A plea, does anyone have a copy of OpenVMS Alpha V7.3-2? I have looked at all my archives and only have it for VAX. An upgrade would also work as I have V7.3. If someone has a copy in VMS so-called ISO format that would be great. Just got a Personal Workstation 500au fully working and would prefer to keep it on V7 VMS. Many thanks, Mark

4 years, 8 months

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