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

by k7kt＠yahoo.com

Hi Mark ! Ran across your 2016 note at ( http://www.classiccmp.org/pipermail/cctalk/2016-July/025530.html ) while looking for info on the HP9885M Disk Drive. I have one of these old drives in what appears to be near mint condition. I can't fully test it, don't have any disks, but it powers up without any magic smoke leaking out. LEDs lit up, capstan drive is working, belt is in pristine condition, ventilation fan is working, boards are powered. Certainly looks like it's ready to go. I've carried the thing all over the country as I've moved between jobs, intending to use the chassis in construction of a different electronic device. It has spent a lot of time in closets. I don't have an HP9825A or HP9845 computer and I'm getting too old to acquire such toys. If you have interest, I would like for someone who understands and appreciates such things to have it. I can share pictures. It would be a shame to disassemble such a well-built old beast. Please let me know. Have a great week! Ernie K7KT at yahoo.com

7 years, 7 months

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Free: DDS-1 tapes, unused (new-old stock)

by sieler＠allegro.com

The DDS cleaning tapes have been claimed. I may have more unused cleaning tapes in storage, but I won't know for a few months. If I find any, I'll post. Stan

7 years, 7 months

2
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What platform can run m68k COFF binaries?

by blstuart＠bellsouth.net

On Wed, 9/5/18, Ethan Dicks via cctalk <cctalk at classiccmp.org> wrote: > The part that puzzles me is the collection of object files and > binaries in the directory above that.? 'file' tells me that they are > "m68k COFF" files.? From what I've read so far, COFF binaries are from > System V Release 2-4.? What I can't reconcile is what they might have > been compiled on.? Is it possible these were made for A/UX?? The > relevant file dates (late-1988 through mid-1989) do overlap > availability of A/UX version 1. I'm pretty sure the AT&T UNIX PC (7300/3b1) used COFF. I remember messing around with it when porting an old version of gcc to the machine. At that time, GNU was playing around with something called robotusin (COFF medicine). BLS

7 years, 7 months

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VMS Mosaic 4.2

by spectre＠floodgap.com

I'm worried that VMS Mosaic 4.2 is lost since WVNET's VAX systems are no longer operational, and it was stored on their FTP server (not somewhere that the Wayback Machine got to). I only have an old version of 3.6 and a diff of 4.2. Does anyone have the original copy of 4.2? It was named MOSAIC4_2.ZIP. What I've got is here: gopher://gopher.floodgap.com/1/gopher/clients/vms/ -- ------------------------------------ personal: http://www.cameronkaiser.com/ -- Cameron Kaiser * Floodgap Systems * www.floodgap.com * ckaiser at floodgap.com -- The world is coming to an end. Log off now. --------------------------------

7 years, 7 months

7
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AlphaWindows - Protocol Information?

by Martin.Hepperle＠MH-AeroTools.de

In the 1990s a computer terminal standard "AlphaWindows" was proposed by the Display Industry Association (DIA). Sort of X-Windows for the poor. A few terminals appeared which supported multiple text windows following the this standard. Some limited global facts can be found in Wikipedia. I learned that for example the TeleVideo 995 and 9089 or the HP 700/70 terminals supported AlphaWindows. Obviously there were several implementation levels like: (1) Basic AlphaWindow (2) Mouse Operations (3) Decorations (4) AlphaWindow Credits Flow Control Unfortunately I cannot find any information on the protocol resp. escape sequences and the DIA is long gone. Does anyone have a manual with escape sequences for one of the terminals mentioned? Or other material describing this protocol? Note that other terminals of the similar types (e.g. HP 700/71) do not support this feature. Martin

7 years, 7 months

3
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LSSM - Large IBM haul

by jnc＠mercury.lcs.mit.edu

> From: Anders Nelson > https://www.facebook.com/503408869821526/posts/1084448565050884/ This is an incredibly cool thing, and my hat is off to the LSSM for undertaking this. How's the fund-raising going? If money is still needed, I'll head off to Paypal and send a goodly chunk. Noel

7 years, 7 months

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AlphaWindows - Protocol Information?

by blstuart＠bellsouth.net

On Wed, 9/5/18, Martin Hepperle via cctalk <cctalk at classiccmp.org> wrote: > In the 1990s a computer terminal standard "AlphaWindows" was proposed by the > Display Industry Association (DIA). Sort of X-Windows for the poor. > > Does anyone have a manual with escape sequences for one of the terminals > mentioned? Or other material describing this protocol? It so happens that I do have a copy of the standard. I suppose I'm one of only a few who paid the $99 to DIA to get a copy. Back in the early '90s I started writing an implementation for the Mac, but ended up not getting very far before other projects pushed it down onto the stack. I'll see what I can do about scanning it for you. BLS

7 years, 7 months

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Milwaukee Computers MC-1200

by aek＠bitsavers.org

Another small project off my plate. Ethan had asked me years ago to make copies of the software for this machine. It is pretty obscure, one full page add in Byte, and it sank without a trace. 6502, p-System, totally custom MFM-encoded floppy interface based on a Moto 6852 synchronous serial interface chip. I had bought a Supercard Pro a while ago, and set it up to do some hard-sectored floppy imaging. Figured this would be a good test case, since it didn't have the problems with dealing with out of sync data streams (the SCP doesn't grok more than one sector hole so you have to turn off index synchronization). Made images, dragged my machine out of storage, cleaned it up, made a clone from the SCP image, and it booted! yay! SCP images are up under http://bitsavers.org/bits/MilwaukeeComputers I also put up cleaner images of the schematic and board layout, and annotated a disassembly of the boot prom from a scanned listing i've had for a while under http://bitsavers.org/pdf/milwaukeeComputers One thing I noticed that made me nervous is looking at the code there is no checksum on either the sector address or data fields on the floppy. I made an image of a floppy that I bulk-erased and initialized this morning, and all you see are the sync bytes and data, no trailing data where a crc would be.

7 years, 7 months

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VAX 11/785 "Superstar" Backplanes

by pbirkel＠gmail.com

On the 'bay: 183405165416 and 183405165414 "Scrap / Gold Recovery" Six total. One wonders what the scrappers did with the rest, and where they came from given that the location is Goffstown, New Hampshire. paul

7 years, 7 months

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Dilog DQ604 RL01 / RL02 emulation on ST506/ST412 disk.

by mattislind＠gmail.com

I unearthed some old TU58 tapes that luckily was readable (after carefully replacing the tension band) It resulted in two RT11 V4 images with two versions of the formatter program. One is bootable and the other not. http://storage.datormuseum.se/u/96935524/Datormusuem/Dilog/DQ604/sq604c.dsk http://storage.datormuseum.se/u/96935524/Datormusuem/Dilog/DQ604/sq604d.dsk I tried to run the formatter program in Simh: .run sq604C.sav TEST AND FORMAT DQ604 DISK SYSTEM (REV C.) DRIVE FORMATS AS RL01 UNIT (5.24 MB) SWITCH 3 CLOSED ENABLES BOOTSTRAP THERE ARE 17 PHYSICAL SECTORS PER TRACK (2) ALTERNATE CYLINDERS MAY BE ASSIGNED PER UNIT THE INTERLACE FACTORS ARE TWO OR THREE TO ONE DATA BUFFER ERROR USE PROCEED (P) TO REPEAT TEST HALT instruction, PC: 006312 (BR 6202) .RUN SQ604D TEST AND FORMAT DQ604 DISK SYSTEM (REV C.) DRIVE FORMATS AS RL02 UNIT (10.48 MB) SWITCH 3 CLOSED ENABLES BOOTSTRAP THERE ARE 17 PHYSICAL SECTORS PER TRACK (4) ALTERNATE CYLINDERS MAY BE ASSIGNED PER UNIT THE INTERLACE FACTORS ARE TWO OR THREE TO ONE DATA BUFFER ERROR USE PROCEED (P) TO REPEAT TEST HALT instruction, PC: 006312 (BR 6202) So it appears to be runnable. I also found the manual for the board and scanned it: http://storage.datormuseum.se/u/96935524/Datormusuem/Dilog/DQ604/DQ604.pdf Now the next step is to see if this can make the DQ604 board I have working with David Gessweins MFM emulator.

7 years, 7 months

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IOCCC 2018 Best of show

by pontus＠Update.UU.SE

Hi Sorry if this has been posted already. But some of you might get a kick out of this years "Best of show" winner of IOCCC: https://www.ioccc.org/2018/mills/ Cheers, Pontus.

7 years, 7 months

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Some late fifties HP measurement equipment available. ( Switzerland )

by jos.dreesen＠greenmail.ch

All, the following late fifties HP equipment is available in Switzerland. Stored in less than ideal conditions, but seem otherwise quite OK. Feel free to forward to more fitting mailing list / fora. Not my equipment, my only interest in this is saving these from the scrapheap. HEWLETT PACKARD TIME INTERVAL UNIT 526B HEWLETT PACKARD ELECTRONIC COUNTER 524C HEWLETT PACKARD DIGITAL RECORDER 560A ( Possibly a second HP524(b) , unsure of this ) I will forward email adresses tio the seller, up to you to complete. He expects to raise some money, unsure if realistic or not. Jos Dreesen

7 years, 7 months

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LSSM - Large IBM haul

by anders.k.nelson＠gmail.com

Hi all, In case others haven't seen this, the Large Scale Systems Museum has been given an opportunity to acquire a "near-mint" condition IBM System/370 and ES/9000 collection that has been maintained by a former field service tech since new: https://www.facebook.com/503408869821526/posts/1084448565050884/ Might be worth saving? =] -- -- Anders Nelson +1 (517) 775-6129 www.erogear.com

7 years, 7 months

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Free: DDS-1 tapes, unused (new-old stock)

by sieler＠allegro.com

They've been claimed, and I have someone in line, too. BTW, I may have a large number of unused cleaning DDS cartridges, too. thanks. Stan

7 years, 7 months

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Free: DDS-1 tapes, unused (new-old stock)

by sieler＠allegro.com

Hi, Anyone want 100 unopened/unused DDS-1 tapes? (60 from Sony, 40 from unknown) Still in original boxes :) Free for pickup in Redwood City, or negotiate with my office manager (to her benefit :) to ship them for you. thanks, Stan

7 years, 7 months

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3 really old keyboards

by sales＠elecplus.com

https://bit.ly/2PxonDk https://bit.ly/2wH38rA Cindy Croxton Electronics Plus 1613 Water Street Kerrville, TX 78028 830-370-3239 cell sales at elecplus.com --- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus

7 years, 7 months

1
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Free: Dell Poweredge 2950

by sieler＠allegro.com

Anyone interested in a free dell poweredge 2950? (Free for pickup in Redwood City, CA, USA) Two 73 (?) GB SAS drives, some amount of RAM. Worked the last time it was powered on, about 2 years ago. No idea how much memory or other features. It was bought (used) to be a spare for another Dell, but once we realized the original Dell used SATA drives, we never used this one. We're moving offices, and this has to find a home or a scrapheap. (It was introduced about 2006, so that makes the 10 year classic cutoff :) thanks, Stan

7 years, 7 months

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JLS Vidtek Big Board Xerox 820

by mso＠exoss.net

Hi, It was my company that produced that and I was one of the designers... JLS Computers (aka Vidtek). produced in Toronto similar to SBC BB1 Enrico Lazzerini enrico.lazzerini at email.it Mon Feb 9 16:30:06 CST 2015 Previous message: Memorex MRX IV 6250 BPI SuperReel Tape on sale - 4 reels maybe new Next message: begging drivers/docs for obscure old PC/Mac hardware Messages sorted by: [ date ] [ thread ] [ subject ] [ author ] Hi, I'm a bit curious on this old historical motherboard derived from original Ferguson Bigboard 1. Is there anybody who have it and he can send a pic of it? Or Is there anybody who can describe it? I not found anything on internet, just all I report below: Micro/Access ????????????? | Toronto, Ontario????? (1983-1993) ??????? SYSOP | Max Southall ???? SOFTWARE | Custom by Bob Kamins and Max Southall ???? COMMENTS | "The Micro/Access BBS system grew out of the need to ????????????? | service the product line of the JLS/Vidtek Big Board ????????????? | project. The JLS Big Board was a reincarnation with ????????????? | hardware and software enhancements of the original ????????????? | Ferguson Big Board Z80 single board computer system sold ????????????? | to hobbyists. Redesigned by Joe L. Sutherland, with input ????????????? | from Bob Kamins, with later hardware, firmware and ????????????? | software fixes by Max Southall, it was a solid CP/M-80 ????????????? | based system which also was the basis for the Xerox 820 ????????????? | series. Customers (or any others) of the Big Board were ????????????? | charged $50 a year for access, which eventually included ????????????? | email access to the then research-oriented internet. ????????????? | There were hundreds of paying customers.? The BBS ????????????? | software based on Bob Kamins' work was written in ????????????? | Microsoft's BASIC, and compilation was with Microsoft's ????????????? | M80 compiler. <p> "Eventually Max Southall completely ????????????? | rewrote Stuart Lynne's (yes, the later ICANN chairman) ????????????? | UUPC program and incorporated an email program interface, ????????????? | all in assembler, which connected the Micro/Access BBS ????????????? | users via UUCP to Unix-based internet-based ????????????? | communications. <p> "Prior to 1985, the system was known ????????????? | online as the Vidtek system, which grew out of ????????????? | manufacturing video and CP/M boards for the Apple ][ ????????????? | clone systems. SCSI hard disk subsystems were ????????????? | manufactured and sold for the Big Board and sold all over ????????????? | the world, and the BBS used the same hardware as was sold ????????????? | to customers." - Max Southall Regards Enrico

7 years, 7 months

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VWoCW - New Items Posted for Sale from Sellam's Collection

by sellam.ismail＠gmail.com

Hello Folks. I've got a new batch of stuff for your weekend perusing: A.R.T. Dutch Design EPP-1F E(E)Prom Programmer Radio Shack TRS-80 Twelve Meg Disk System Radio Shack TRS-80 Twelve Meg Disk System Radio Shack TRS-80 Color Computer Mini Disk Radio Shack TRS-80 Color Computer Mini Disk Radio Shack TRS-80 Color Computer Mini Disk Exatron Stringy Floppy Drive Exatron Stringy Floppy Drive Panasonic JR-200U Personal Computer Panasonic RK-P400C 4-color Graphic Penwriter Qume QumeTrak 842 8" floppy disk drive 1-800-FLOPPYS Smart Communications System MFJ MFJ-1278B Multi-mode Data Controller Suncom side-mount joystick controller TI PHP1200 Peripheral Expansion System Network Computing Devices NCD XploraPro XQ As always, an index of links to the specific items above is available for your convenience in the New Arrivals Niche: https://docs.google.com/spreadsheets/d/1I53wxarLHlNmlPVf_HJ5oMKuab4zrApI_hi… Thanks! Sellam

7 years, 7 months

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WTB: Altair 680, Any Condition, Any Configuration

by systems.glitch＠gmail.com

All, I'm looking for an Altair 680. I've been working with Jeff Albrecht's A680 during the RAM board design process, and would like to continue working on a few things for the 680, but I'd also like to send Jeff's machine back to him! Configuration is not particularly important to me. I'd like something with a non-rev 0 motherboard in it if possible -- the easiest way to tell is that there will be a slot for the expansion riser. Front panel vs. turnkey, branding, etc. are not important to me. I'd potentially be interested in even an empty case! Thanks, Jonathan

7 years, 7 months

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Unisys keyboards

by useddec＠gmail.com

Two Unisys PCK105-SKB look unused, but one is yellowed. Sorry, I forgot to describe them as keyboards. Thanks, Paul

7 years, 7 months

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Novapalooza in 2 months...

by Flash688＠flying-disk.com

> > Alan Frisbie via cctalk wrote: > > I always found it amusing that Data General's computers were > > named after transitory phenomena: Nova, Supernova, Eclipse. > Bruce Ray <Bruce at Wild-Hare.com> wrote: > > I see what you mean... sorta like the DEC "Rainbow"? Good one! I didn't see that coming. :-) Alan

7 years, 7 months

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Novapalooza in 2 months...

by Flash688＠flying-disk.com

Bruce Ray <Bruce at Wild-Hare.com> wrote: > Really, the Nova is 50? Yup - so join us in celebrating the personal and > technical impact of this youngster.. I always found it amusing that Data General's computers were named after transitory phenomena: Nova, Supernova, Eclipse. Of course, in the grand scale of things, we all are. :-( Alan

7 years, 7 months

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Thicknet/10base5 Test Segment: The Cable is In!

by systems.glitch＠gmail.com

All, A few months ago, I mentioned one of my suppliers had Belden 89880 thicknet Ethernet cable. Well, last week I finally made it down to his warehouse and picked it up! The final bits for a test segment came in today, so I set up a little link between my SPARCstation 10 and DEChub 90: https://imgur.com/a/GDUR36j Anyone interested in cable can email me directly (please change the subject line, it'll get binned into my cctalk folder otherwise). I can provide any level of "kit" from just the cable to fully ready to go. I do have a very few NOS Cabletron ST-500-01 transceiver/non-intrusive tap kits as well. Thanks, Jonathan

7 years, 7 months

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PDP-11/04 on eBay

by jnc＠mercury.lcs.mit.edu

For those who didn't catch it: https://www.ebay.com/itm/202415330983 I have bought from this seller before (very happy with the results), but am not otherwise affiliated. The -11/04 is a nice UNIBUS starter/test machine (my UNIBUS board debug machine is an -11/04). The CPU is a single (hex) board, and it's really simple and straightforward - very easy to work on and fix. (You don't even need to put it on an extender card! :-) Depending on the backplane that's in the machine, it might be super-easy to upgrade to an -11/34 (if it's a DD11-P, as many /04's are, just pull the CPU card and plug in a set of /34 boards). Not sure what's up with the M105/M7821; they aren't standalone cards, but go with some other card (they are addressing and interrupt/vector functionality). No idea what it was, though... Noel

7 years, 7 months

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Lear Sielger keyboard for parts or repair

by sales＠elecplus.com

https://www.elecshopper.com/lear-siegler-adm-11-keyboard-for-parts-or-repair .html Cindy Croxton Electronics Plus 1613 Water Street Kerrville, TX 78028 830-370-3239 cell sales at elecplus.com --- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus

7 years, 7 months

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Computer Design & Automation (CDA), Simpact, EXCLAN

by useddec＠gmail.com

Does anybody know anything about these companies or their products? If you have any interest in them, please contact me off list. Thanks, Paul

7 years, 8 months

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DEC PDP 11 RK05 DEC custom (?) bootstrap board

by jnc＠mercury.lcs.mit.edu

> From: Paul Koning > the original ROM array bootstrap supports not just RK05 but also RF11, > RC11, and TC11 in just 16 words of code. Ah, the days of devices that just did what they were told without trying to be effing rocket scientists about it! (Yeah, yeah, I know _some_ of the things the later ones did, you had to be close to the hardware to do them, but too often they had this 'we're from the device manufacturer, and we're here to help you' thing going. I used to have a photocopy of a great article in a trade rag which explained why complex devices were a Bad Idea; maybe I can find it, if anyone's interested.) Noel

7 years, 8 months

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DEC PDP 11 RK05 DEC custom (?) bootstrap board

by jnc＠mercury.lcs.mit.edu

> From: Bill Degnan > I am curious how I'd attempt to use one of these. Any thoughts? I'd start by dumping and disassembling. (If you need something to find out where in memory they are, I have a register discovery program that sweeps the I/O page and lists all locations that respond. It's probably 173xxx though, that's the DEC-allocated spare for ROM.) Noel

7 years, 8 months

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Computer Design & Automation (CDA), Simpact, EXCLAN

by Richard.Sheppard＠telus.com

> Does anybody know anything about these companies or their products? I have a couple of Simpact VME form factor DSP cards (DSP-LC) which were used in a fancy telephone answering machine for radio stations. It was part of a big system which allowed listeners to call in and get the weather, lottery, joke-of-the-day etc. They could also enter contests and record their phone number via DTMF. Richard Sheppard

7 years, 8 months

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CESI VM8128 PDP8-A 128 K MOS?

by allisonportable＠gmail.com

On 08/24/2018 07:06 AM, Rod G8DGR via cctalk wrote: > M8417 MSC8DJ?PDP8A 128K MOS? > > Clone of this > > > > Sent from Mail for Windows 10 > > From: Paul Anderson via cctalk > Sent: 24 August 2018 10:12 > To: General Discussion: On-Topic and Off-Topic Posts; cctech at vax-11.org > Subject: CESI VM8128 PDP8-A 128 K MOS? > > I have an idea what this might be, but I can't find anything to confirm it > on line. Can anyone shine some light on it? > > Thanks, Paul > its a 128 memory card If memory is right hex width for PDP-8A... The last of the omnibus 8s. That machine had extended the MMU used in earlier PDP-8 from 3 EMA lines to 5. Only fits the 8A chassis. Allison

7 years, 8 months

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11LOGO

by lars＠nocrew.org

Hello, I have a 1972 version of 11LOGO, which is the dialect of Logo which was done by the Logo group at MIT. Their computer was a PDP-11/45. I have it running in a PDP-11 simulator, 11SIM, which runs on the ITS operating system. If someone is interested in running it in some other simulator like SIMH, I can provide files and assistance. The nice thing about 11SIM is that it emulates the one-off TK display system which provides 8 vector displays. 11LOGO uses it to view turtle graphics. It would be interesting to add this capability to SIMH, but I'm pressed for time. I can provide documentation, though. There is a second application, the Dazzle Dart game, which uses this display as well. It doesn't run in 11SIM because it uses FP11 instructions which are not implemented. Best regards, Lars Brinkhoff

7 years, 8 months

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Apollo motherboard dated 1988 013034

by useddec＠gmail.com

I just found it while sorting. If you are interested, please contact me off list. Thanks , Paul

7 years, 8 months

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Event Announcement: DEC Legacy is back on 17th-18th Nov 2018, Windermere UK

by mark＠wickensonline.co.uk

DEC Legacy 2018 is on! The next DEC Legacy will take place Saturday 17th November 2018 - Sunday 18th at the Marchesi Centre in Windermere, North West UK. With a focus on Digital Equipment Corporation and their legacy of hardware, software and ethos I'm also extending an open invitation to those who are interested in SGI, HP, Sun, IBM and other high end hardware to come along and share their passion with us. Several formal presentations will be mixed with plenty of hands on time with hardware brought by enthusiasts. Enthusiasts are encouraged to bring along hardware and software to exhibit. The personal nature of the event brings a unique atmosphere within which friendships are easily forged. Registration is now open. Please visit http://declegacy.org.uk for more details. Regards, Mark Wickens, M0NOM

7 years, 8 months

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Microsoft DOS Fortran 5.1 graphics

by Martin.Hepperle＠MH-AeroTools.de

> I am looking for a sort of 'hello world' example and/or samples to use the > graphics library in this compiler, some sample code. My target is DOS and > the Compaq luggable mono display. > > > It looks like its all there, the library and include files for display adapters and > modes, but I cant find an example on the netwebs to get me started. > > > Anybody have a set of demo files or application source to study and to use > this? > > > I have TurboC running on this machine, and the graphics are great. Did > Microsoft have a similar set of examples for Fortran? > > > Randy > Randy, this compiler can generate executables for DOS, Windows and OS/2. It also came with the QuickWin libraries to create FORTRAN programs which output text and graphics in Windows. I am not 100% sure, but it is possible that the first release did not have the QuickWin libraries and it came with an update. When you install Microsoft FORTRAN 5.1 you have the option to install the SAMPLES. The README says: <cite> [...] \SOURCE\SAMPLES This directory also contains the source code for the graphics programs from chapters 11, 12, and 13 of the Microsoft FORTRAN Advanced Topics manual. Note that these examples require the graphics include files FGRAPH.FI and FGRAPH.FD. These files are copied to an INCLUDE directory by the SETUP program. In real mode (DOS), the programs must be linked with the graphics library GRAPHICS.LIB. In protected mode (OS/2), graphics is not supported, but you can compile text-only programs by linking with the text library GRTEXTP.LIB. The appropriate libraries are copied to your disk by the SETUP program. For example, use the following command line for DOS: FL COLTEXT.FOR GRAPHICS.LIB Or use the following command line for OS/2: FL COLTEXT.FOR GRTEXTP.LIB The programs are listed below: DOS only DOS or OS/2 -------- ----------- Chapter 11 CGA.FOR COLTEXT.FOR COLOR.FOR EGA.FOR GRAPHIC.FOR HORIZON.FOR REALG.FOR SINE.FOR Chapter 12 SAMPLER.FOR Chapter 13 ANIMATE.FOR CURSOR.FOR ARC.FOR MODES.FOR CGAPAL.FOR SCRTXWIN.FOR FIGURE.FOR SETROWS.FOR FILL.FOR TEXT.FOR FONTS.FOR WRAP.FOR MAGNIFY.FOR PAGE.FOR PALETTE.FOR STAR.FOR WINDOW.FOR [...] </cite> Those examples cover many aspects of the system. I only used the Windows part and I believe that under OS/2 there is no graphics, only cursor addressing. The graphics system offers similar capabilities to e.g. Borland's or Quick C's capabilities. regards, Martin

7 years, 8 months

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DEC PDP 11 RK05 DEC custom (?) bootstrap board

by billdegnan＠gmail.com

I have what I believe to be two DEC RK05 bootstrap boards each with a ROM labeled 802350 A. UNIBUS. The plastic handle tabs are Digital Equipm.'s but it could be an OEM as there is nothing printed on them. On the board is printed on what would be the bottom front side R-K ABBR BOOT P.C. BOARD 609395 REV B on one line and under that 802000 REV There is a round sticker on the back of the board written in pen that reads: LL 802000 Rev B 6-17-76 printed on the backside of the board near the sticker is 609395 REV B I use a M9312 to bootstrap from the monitor but I am curious how I'd attempt to use one of these. Any thoughts? Bill

7 years, 8 months

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A New Zealand-based early '80s microcomputer retailer talks about his experience

by terry＠webweavers.co.nz

This won't be of interest to everyone, but if you want to hear what it was like to open and run a microcomputer store in New Zealand back in the early 1980s, it's captured here. https://www.classic-computers.org.nz/blog/2018-08-23-viscount-electronics.h… Terry (Tez)

7 years, 8 months

1
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Color of Leaky Electrolyic Caps?

by marvin＠west.net

I was just checking out the leaky capacitors on the model 100 motherboard, and they are all colored black. And ditto for the HX-20. The ones that are both light and dark blue look to be fine (no leakage.) So am I just seeing an anomaly, or is this the experience of most people here?

7 years, 8 months

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Epson HX-20, TRS-80 Model 100 Capacitor Kits

by marvin＠west.net

Since I have at least four Model 100 and HX-20s, I've decided to just replace all the aluminum electrolytics before repair becomes much more difficult. So far, I see the project as fairly easy depending on how bad the corrosion from the leaking caps is. Is anyone interested in buying a kit or two of the capacitors? I'm guessing buying the parts from DigiKey at low quantity prices will result in about $3.50 or so for the bag of about 13 capacitors. US postage will probably run a couple of dollars or so, but I can also bring them with me to VCFMW. I'll be ordering what I need unless I hear others might want the kits as well. On a similar topic, has anyone given up on cleaning out the corroded plated-Thru-Holes, and just soldered on some SMD caps? If so, how did it work out? Finally, just some observations on the corrosion. I finally found some information about the corrosion caused by leaking aluminum caps. It sounds like the leaking fluid, besides possibly damaging the copper traces, also does something to the solder in the PTH such that a soldering iron won't melt the solder. Right now, the solder doesn't want to melt so I will use a pin vise and about a number 62 drill or so to hand drill out the PTH solder.

7 years, 8 months

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Strange third party board in PDP-11/45

by jnc＠mercury.lcs.mit.edu

> As to what _else_ it is doing, and why it has the cable to the main > card... I think that it must intercept MSYN from the processor and only > let it pass if there's no hit in the cache. > (To explain why it would need to do that... normally with the MS11, > there's a static partitioning between FastBus memory and UNIBUS A > memory. So when the CPU goes to do a memory cycle, it can put the > address out on both the UNIBUS and FastBus, with the certainty that it > will only get a reply on one. So, my guess was wrong there. I had _assumed_ that when doing a memory operation, the CPU started a cycle on both busses, to minimize the delay on the UNIBUS cycle if the MS11 on the FastBus didn't have that location. (I had previously checked, and there is an 'I have that location' signal which the MS11 sends back, making the concept of a cache possible.) Well, no. In the "KB11-A CPU Maintenance Manual" (DEC-11-HKBB-D), section 7.7.1 ("Bus Control Introduction"), it says: If the address applies to a Fastbus device, that device will respond in time to inhibit the UNIBUS MSYN signal (It turns out the KB11-A is very clever; it has to delay for a bit after asserting the address, etc, signals on the UNIBUS, for de-skew, before it can assert MSYN, and during that delay, in parallel, it checks to see if the MS11 has that location.) So my theory about what that double-card does (prevent an MSYN sent to main memory on a cache hit) is apparently wrong. Which leaves the question of what that card _does_ do... The cache _does_ need to have the A and B UNIBUS tied together, so that it can snoop UNIBUS memory cycles (which are on the A UNIBUS) via the B UNIBUS (which is what it has access to on the backplane), _but_ it doesn't need a special card, with i) active logic, and b) a cable back to the main board, to do that - a regular M9200 will do that. The cable back to the main card, and the logic on the two dual-width cards, mean it wants to interfere somehow in the connection between the A and B UNIBUS. But if not the MSYN thing, what else could it be? I have pondered that question, but I can't think of anything. It can't be doing anything with interrupts or DMA, I would think, so no grant interception. So what else could it be? Anyone have any ideas? Noel

7 years, 8 months

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ACT Able, Datasouth

by useddec＠gmail.com

I have a bunch of Able items here If you have any questions, please contact me off list. If you have any info, please share it with us. several models of Quniverters 10028, 10028101, 10028102 some boards have 3 #s This is the mysterious PDP 11/45 board. RARE? 10033, 10033001, 10033002 PDP1134, 11/40 cache RARE? SN267 10003000, 10003001, 10003002 10049, 10049-0, 10049001,10049002 High speed link Datasouth board for LA36 I believe.

7 years, 8 months

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IMS DYNATECH, UNISYS, EECO Paper tape, Datamyte

by useddec＠gmail.com

This is a very old rack mount disk controller (has format switch) with what looks like ims on the 15 or so small boards. The backplane has DYNATECH on the back. Two Unisys PCK105-SKB look unused, but one is yellowed. DATAMYTE 1000 Data Collector EECO model # TRS9200BBDED, paper tape reader, no reels. The TRS9200 is on Bitsavers.org

7 years, 8 months

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Article on Gopher with Cam in it

by aek＠bitsavers.org

https://www.minnpost.com/business/2016/08/rise-and-fall-gopher-protocol They seem to have overlooked the fact that U-Minn never wanted to release control over Gopher.

7 years, 8 months

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Looking for Targa 1.0 drivers

by schlae＠gmail.com

I have some old Targa 1.0 video boards (dating back to their AT&T days) but no driver diskettes. Does anyone happen to have some? I think they should work with Targa 16 drivers.

7 years, 8 months

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NEC Multisync monitor manual

by Richard.Sheppard＠telus.com

> I am looking for a manual for the original NEC Multisync monitor. Mine is JC-1402 and the "User's Manual" I have is titled "MultiSync 3D". It mentions model JC-1404 but it all looks the same as mine. Is there anything in particular you need to know - or would you like a scan? Richard Sheppard

7 years, 8 months

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VAX 4000 Memory?

by holm＠freibergnet.de

Hi, I have an working VAX4000/300 and I'm looking for additional memory for this machine. Has anyone left over MS-670 Memoryboards that he wants to get rid of for an symbolic price? (or compatibles, clearpoint etc...) I'm ocated in germany.. Regards, Holm -- Technik Service u. Handel Tiffe, www.tsht.de, Holm Tiffe, Freiberger Stra?e 42, 09600 Obersch?na, USt-Id: DE253710583 info at tsht.de Fax +49 3731 74200 Tel +49 3731 74222 Mobil: 0172 8790 741

7 years, 8 months

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Microsoft DOS Fortran 5.1 graphics

by rdawson16＠hotmail.com

I am looking for a sort of 'hello world' example and/or samples to use the graphics library in this compiler, some sample code. My target is DOS and the Compaq luggable mono display. It looks like its all there, the library and include files for display adapters and modes, but I cant find an example on the netwebs to get me started. Anybody have a set of demo files or application source to study and to use this? I have TurboC running on this machine, and the graphics are great. Did Microsoft have a similar set of examples for Fortran? Randy

7 years, 8 months

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IBM, Panasonic printers, Calcomp plotters, Versatec, SC08s

by useddec＠gmail.com

The following can be delivered to VCFMW or shipped: IBM 5152 personal computer graphics printer Panasonic MX-P1124 24 pin multi mode printer Several Calcomp table top plotters Versatec Unibus boards DEC SC08 Star Couplers Just looking for reasonable offers. Thanks, Paul

7 years, 8 months

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Announcing VCF Pacific Northwest 2019!

by mbbrutman＠brutman.com

*VCF PNW 2019 will take place March 23-24, 2019 at Living Computers: Museum+Labs in Seattle, Washington. We had a great time last year and we are going to try to make it even better this year.Exhibitor registration is open. I am also looking for speakers and volunteers to help me run the event. It seems early but time tends to speed up at the end of the year. Getting an earlier start should also help people who need to make travel arrangements.Are you thinking about traveling from outside of the region? There is plenty to do in Seattle while you are here, including the Connections Museum, the Pacific Science Center, MoPOP, the Boeing factory tour, etc.Interested? Check out http://vcfed.org/wp/festivals/vintage-computer-festival-pacific-northwest/ <http://vcfed.org/wp/festivals/vintage-computer-festival-pacific-northwest/> for more details or send me an email.Thanks,Mike*

7 years, 8 months

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Model 100/HX-20 LCD Display Problems

by marvin＠west.net

In getting ready for VCFMW, I started looking at some model 100s and HX-20 notebook computers. Most of them have blank LCD displays, so I figured there might be a common problem. So far, I've found leaky electrolytics on all of them, usually 10 uF, but there are some others with all of them so far associated with the LCD power supplies. The Epsons seem less prone to this than the model 100s, but both have the problem. Has anyone that has done repair work on these computers found the major problem to be leaky capacitors? My gut reaction at this point is to just replace all of the electrolytics. Does this sound like a reasonable longer term approach rather than just replacing the obvious leaky ones?

7 years, 8 months

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