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

by tshoppa＠wmata.com

Al writes: > Tim writes: >> I fully expect that his archive is a large collection of 8", 5.25", and 3.5" floppies. > In the system.txt file, there are quite a few ".zip" files listed. Yes there are, but those are not Don's speciality, which was CP/M boot disks. The zip files I gave to Don tended to be things like BIOS source files, disassemblies, etc. Probably true for others too. Often these were closely associated with a particular system or boot disk. Don never made the leap to "disk image" being the central focus. Possibly With good justification because he supported many non-FM/non-MFM formats (GCR, hard sectored, etc.) that teledisk et al did not handle. Tim.

13 years, 7 months

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OSCAR [was RE: Big Alphas (was Re: FS: HP AlphaServer DS15)]

by RichA＠vulcan.com

From: Ethan Dicks Sent: Friday, November 16, 2012 9:25 AM > One interesting historical note - it was formerly OSCAR, the card > catalog computer for the Ohio State University library system. Wow. I remember when OSCAR was maintained on the administrative IBM System/370 over in that building north of the library. The VAX was not even a design idea yet, of course, when I first met OSCAR. (I worked in the library from September 1973 to August 1975, first on the shelving crew and after 1 quarter at the circulation desk. When I told my Stanford students later that programming paid better than shelving books at the library, I knew what I was talking about.) Rich Alderson Vintage Computing Sr. Systems Engineer Vulcan, Inc. 505 5th Avenue S, Suite 900 Seattle, WA 98104 mailto:RichA at vulcan.com mailto:RichA at LivingComputerMuseum.org http://www.LivingComputerMuseum.org/

13 years, 7 months

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discrete transistor computer

by elson＠pico-systems.com

There are several discrete transistor computers posted on the net, some with complete schematics. http://hackaday.com/2012/04/20/building-a-computer-with-discrete-transistor… There was a German (possibly Dutch?) guy that made a discrete transistor computer using all one kind of SMT transistor and other SMT components on PC boards, it was the size of a shoebox. I can't find the link now. Jon

13 years, 7 months

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Don Maslin collection status

by fjkraan＠xs4all.nl

On 2012-11-15 23:41, mc68010 <mc68010 at gmail.com> wrote: > the names of all the disks are limited to eight characters. That would > sort of indicate they were files on something. The two images of the list I got from Don were TD0 files, TeleDisk image files. EPSNQX10.TD0 and EPSNVLDC.TD0. They came in a zip EPSQX.ZIP. Some extra, 'unsorted' zips were EPSQX-B.ZIP, EPSQX-D.ZIP and EPSQX-E.ZIP. Fred Jan

13 years, 7 months

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Has anyone heard from Dave Dunfield?

by aek＠bitsavers.org

I tried sending a message to him at the dave12 address and didn't hear anything back then I noticed he hasn't posted anything here since March.

13 years, 7 months

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IBM PC replica

by brain＠jbrain.com

Is this old news: http://www.mtmscientific.com/pc-retro.html -- Jim Brain brain at jbrain.com www.jbrain.com

13 years, 7 months

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discrete transistor computer

by ed.spittles＠gmail.com

On 29 Apr 2012 at 18:46, Richard Smith wrote: > This thread reminds me of a computer we built at school from discrete > transistors. Each transistor was a NOR gate with three resistors on > the base and a collector resistor. All soldered onto squares of tag > board. We put a bunch of them together to build a shift register with > small laps as output. That would be about 1969 or 1970. Does anyone > remember any more? It must have been a published design somewhere. Richard, I think I read the book this project was based on - in the school library, mid-to-late 70's. I've been looking for it, but my recollection is so vague I haven't found it yet. I think it may have kicked off with some physical computing based on wood and ball bearings, but anyhow it worked up to a full serial CPU. My searches have been based on the recollection that the author was Wilkinson (but maybe Wilkins, Watson, Wilson, Watkins, Watkinson, ...) and, of course, it might not even have starte with W. Any info about your school or the specific teacher might help track it down. Or maybe someone here can remember it? Cheers Ed

13 years, 7 months

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Drool!!!

by robert.jarratt＠ntlworld.com

http://www.ebay.com.au/itm/Digital-DEC-VAX-11-750-mainframe-vintage-retro-co mputer-not-PDP11-microvax-/251180977499?pt=AU_Computers_Vintage&hash=item3a7 b8d8d5b Regards Rob

13 years, 7 months

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Midwest show: C4 2013

by silent700＠gmail.com

The C4 Commodore show, held every summer near Cincinnati, Ohio, did not happen this year due to lack of funds. The loyal Commodore scene doesn't want to make it two years in a row, so they are experimenting with pre-funding the show this time around: https://www.crowdtilt.com/campaigns/c4-expo-2013 For this iteration they will be following the model set by Chicago's VCFMW/ECCC and opening their show up to all sorts of vintage computing, as well as extending the event to two days. The tentative date is the weekend of June 8, 2013. Like our show, no admission will be charged, but any donations are greatly appreciated. At this time I am not part of the planning process for the show but I do plan to make a donation and, work schedule permitting, attend. Questions should be directed to the contact address on the page above. >From what I've heard, the venue alone is worth the trip. (Also the USAF Museum at Wright-Patterson AFB, which I have been to, can easily eat up a whole day.) -- silent700.blogspot.com Retrocomputing and collecting in the Chicago area: http://chiclassiccomp.org

13 years, 7 months

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Ton of IMSAI stuff in New Mexico...

by bdamer＠digitalspace.com

Dear CC folk, The DigiBarn received this note from someone who is trying to handle the proper dispensation of a ton of IMSAI stuff located in Albuquerque NM (not Ohio). Read on below and feel free to get directly in touch with him... ### I am in the process of clearing the estate of Gary W. Harris who opened the first computer store in Columbus, OH in about 1975. He was an IMSAI dealer. I have IMSAI equipment, including an 8080, many S-100 boards, and manuals for boards and for IMSAI equipment. Still going through stuff. There is so much stuff, and I don't want to go the EBay route with all the posting, packaging and sending. Can you advise on the disposal of this material in a way that will be to the mutual advantage of the recipient and Gary's estate. Contact: davharr at q.com ###

13 years, 7 months

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Tracometer and BAC levels (was: Re: mystry cards make offer or they going in trash :()

by Arno_1983＠gmx.de

On Nov 11, 2012, at 1:25 AM, mc68010 wrote: >> The testing on that device appear to have be brutal unless I am >> reading wrong. They made the subject test it at 1.2% BAC. I wonder >> how many died. Wouldn't they all ? >> >> http://pro.sagepub.com/content/31/7/751 > (...) isn't > greater than .50% generally at high risk for alcohol poisoning? > > - Dave Yes, .5% is considered "usually lethal" and probably even attainable only for the most extremely alcohol-tolerant persons (anybody else is bound to either have to go puke or pass out long before that) and/or by means of specialized consumption techniques (co-consumption of mar-jah-wana is said to suppress puking). > Um, yeah. At first I thought it was a typo, but they have similar > concentrations elsewhere and give the correct mg/L, so... Nope, it *is* methinks a typo. They're mixing up percents (%) (which is the usual parameter given for ABV in alcoholic beverages) and promille (o/oo) which is the usual unit of measurement for BAC, at least in Germany. 1 Percent is "one part of a hundred" whereas 1 Promille is "one part of a thousand", so 10 Promille make 1 Percent. The given mg/l concentration supports that (they're simplifying insofar that they calculate with a density of 1 g/ml for the blood sample), as 1200 mg/l or 1.2g/l or(about) 1.2g / 1000g is 1.2 *thousandth* (=Promille) or 0.12 % BAC (and not 1.2 % as given in the text), which makes a lot more sense for the average intoxicated person. Just my 2 o/oo... Yours sincerely, Arno Kletzander

13 years, 7 months

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old tv's and CRT's

by gerhard.kreuzer＠liftoff.at

Hi Chuck, NTSC ... Never The Same Color Gerhard -----Urspr?ngliche Nachricht----- Von: cctalk-bounces at classiccmp.org [mailto:cctalk-bounces at classiccmp.org] Im Auftrag von cctalk-request at classiccmp.org Gesendet: Samstag, 10. November 2012 19:00 An: cctalk at classiccmp.org Betreff: cctalk Digest, Vol 111, Issue 25 Send cctalk mailing list submissions to cctalk at classiccmp.org To subscribe or unsubscribe via the World Wide Web, visit http://www.classiccmp.org/mailman/listinfo/cctalk or, via email, send a message with subject or body 'help' to cctalk-request at classiccmp.org You can reach the person managing the list at cctalk-owner at classiccmp.org When replying, please edit your Subject line so it is more specific than "Re: Contents of cctalk digest..." Today's Topics: 1. Re: P112 question - what can you run that uses 1MB of RAM? (Alexandre Souza - Listas) 2. Re: old tv's and CRT's (ben) 3. Re: P112 question - what can you run that uses 1MB of RAM? (ben) 4. Re: P112 question - what can you run that uses 1MB of RAM? (Alexandre Souza - Listas) 5. Re: old tv's and CRT's (Chuck Guzis) 6. Re: P112 question - what can you run that uses 1MB of RAM? (allison) 7. Re: P112 question - what can you run that uses 1MB of RAM? (Alexandre Souza - Listas) 8. Re: P112 question - what can you run that uses 1MB of RAM? (ben) 9. Re: Disk drive manuals (Cameron Kaiser) 10. Laser printers, was Re: P112 question - what can you run that uses 1MB of RAM? (Dave McGuire) 11. PC-1/CX cartridge compatibility, was Re: P112 question - what can you run that uses 1MB of RAM? (Dave McGuire) 12. Re: Wanted: Research Inc. Teleray terminals (Ethan Dicks) 13. Re: P112 question - what can you run that uses 1MB of RAM? (allison) 14. Re: P112 question - what can you run that uses 1MB of RAM? (Mouse) 15. Sam's Computerfacts 4851 Disk Drive (Chris Tofu) 16. Re: P112 question - what can you run that uses 1MB of RAM? (Roger Pugh) 17. Re: P112 question - what can you run that uses 1MB of RAM? (Roger Pugh) 18. Re: P112 question - what can you run that uses 1MB of RAM? (Roger Pugh) 19. Re: P112 question - what can you run that uses 1MB of RAM? (ben) 20. Re: Networking a Macintosh SE/30 (Joost van de Griek) 21. Needed - rear brackets for BA23 mounting kit (Jack Rubin) 22. Re: To Metcal, or not to Metcal? Re: RepRapping. Was:Re: Restoring an Intel SDK-86 to "mostly like new" condition (Jochen Kunz) ---------------------------------------------------------------------- Message: 1 Date: Fri, 9 Nov 2012 22:30:11 -0200 From: "Alexandre Souza - Listas" <pu1bzz.listas at gmail.com> To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk at classiccmp.org> Subject: Re: P112 question - what can you run that uses 1MB of RAM? Message-ID: <5A3297F6A7834D649F33D6EB0E3AA0B0 at tababook> Content-Type: text/plain; format=flowed; charset="iso-8859-1"; reply-type=response > Tell me what toner does a P112 use or is that used to color the 1MB of > ram?? Well, a 64-K CPM system will not print raster graphics with ease on a Laser Printer...You need more RAM! :oD Well, at least I tried :D ------------------------------ Message: 2 Date: Fri, 09 Nov 2012 17:40:56 -0700 From: ben <bfranchuk at jetnet.ab.ca> To: cctalk at classiccmp.org Subject: Re: old tv's and CRT's Message-ID: <509DA298.8030607 at jetnet.ab.ca> Content-Type: text/plain; charset=ISO-8859-1; format=flowed On 11/9/2012 4:17 PM, Chuck Guzis wrote: > At any rate, between 1950 and 1953, the official color television > standard in the USA was the CBS field-sequential system, which, > compared with the RCA system of the same time was quite good (at least > for the time)--a mechanical 3-color filter was spun in front of the > CRT, synchronized to a similar filter at the camera. > > It wasn't until 1953 that RCA had improved its system well enough for > NTSC color to become the official standard. > > A few CBS System receivers still exist. Lots of vintage TV's still can be found. It is getting working color CRT's that are the problem from what I read on the net. Now might be the last time to find CRT's for vintage computer equipment. > --Chuck Has the color on modern display devices matched the color purity of the early TV's yet? Ben. ------------------------------ Message: 3 Date: Fri, 09 Nov 2012 17:50:49 -0700 From: ben <bfranchuk at jetnet.ab.ca> To: cctalk at classiccmp.org Subject: Re: P112 question - what can you run that uses 1MB of RAM? Message-ID: <509DA4E9.3020107 at jetnet.ab.ca> Content-Type: text/plain; charset=ISO-8859-1; format=flowed On 11/9/2012 5:30 PM, Alexandre Souza - Listas wrote: >> Tell me what toner does a P112 use or is that used to color the 1MB of >> ram?? > > Well, a 64-K CPM system will not print raster graphics with ease on > a Laser Printer...You need more RAM! > > :oD > > Well, at least I tried :D > Well if you could access the toner drum directly from the host cpu, I am sure you could emulate a generic mono-spaced printer like a TTY in 16K including the printer fonts. Ben. ------------------------------ Message: 4 Date: Fri, 9 Nov 2012 22:59:27 -0200 From: "Alexandre Souza - Listas" <pu1bzz.listas at gmail.com> To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk at classiccmp.org> Subject: Re: P112 question - what can you run that uses 1MB of RAM? Message-ID: <792C68D6371B41E29AFE93C46BE4CEB5 at tababook> Content-Type: text/plain; format=flowed; charset="iso-8859-1"; reply-type=response >> Well, a 64-K CPM system will not print raster graphics with ease on >> a Laser Printer...You need more RAM! > Well if you could access the toner drum directly from the host cpu, I am > sure you could emulate a generic mono-spaced printer like a TTY in 16K > including the printer fonts. I doubt. And you woudn't print raster graphics :) ------------------------------ Message: 5 Date: Fri, 09 Nov 2012 17:07:22 -0800 From: Chuck Guzis <cclist at sydex.com> To: General Discussion: On-Topic and Off-Topic Posts <cctalk at classiccmp.org> Subject: Re: old tv's and CRT's Message-ID: <509DA8CA.9080005 at sydex.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed On 11/09/2012 04:40 PM, ben wrote: > Has the color on modern display devices matched the color purity of the > early TV's yet? If you're talking about 1950s RCA/NTSC sets, then the answer is no--modern displays were much better. I vividly remember one of the first families on the block to get color TV around 1957. It was an RCA set--the color was greenish and the reds had a longer persistence than the other phosphors, so red objects would "smear" badly on a dark background. Really, NTSC was terrible when it was new and didn't improve all that much. --Chuck ------------------------------ Message: 6 Date: Fri, 09 Nov 2012 20:15:10 -0500 From: allison <ajp166 at verizon.net> To: General Discussion: On-Topic Posts Only <cctech at classiccmp.org> Subject: Re: P112 question - what can you run that uses 1MB of RAM? Message-ID: <509DAA9E.2010702 at verizon.net> Content-Type: text/plain; charset=ISO-8859-1; format=flowed On 11/09/2012 07:50 PM, ben wrote: > On 11/9/2012 5:30 PM, Alexandre Souza - Listas wrote: >>> Tell me what toner does a P112 use or is that used to color the 1MB of >>> ram?? >> >> Well, a 64-K CPM system will not print raster graphics with ease on >> a Laser Printer...You need more RAM! >> >> :oD >> >> Well, at least I tried :D >> > > Well if you could access the toner drum directly from the host cpu, I > am sure you could emulate a generic mono-spaced printer like a TTY in > 16K including the printer fonts. > Ben. > Actually no. To do that you need to be able to process the data rapidly enough to lay down dots as the drum rotates. The key thing for Laser printing (or any page printer) is the bit image need to exist before the paper moves or at least be preprocessed so that the raster image processor can fill a "band buffer" . The Video dot rate for a DEC LN01 (xerox 12PPM engine) was about 7mhz. The early character only version use a 12mhz 80186 with 8089 to keep up, The system IO to the host was handled by the 8089. Oddly the 8PPM LN03 Ricoh based engine was not much slower on the video clock. In the late 80s there were two lasers often those that were band buffer and generally limited to text and limited graphics and a higher priced version that had enough ram to buffer the page so the image could be composed before the paper was even moved. Actually I use my CP/M-80 system to lay down images on a real Laserjet4L. The price is that I need to run the system for a long time to create bit images to transmit. That takes hours even with ram and bit of buffering to hard disk. Even then the printer is doing much of the heavy lifting. The main issue was never ram but CPU cycles to process that data at acceptable rates for graphic images. It is the same issue as doing video graphics on a CRT or LCD. In that case you need enough ram to buffer the image for refresh and enough cpu to create and transfer images to that ram. So to simply move bytes to a 1MB page buffer it would take a Z80 at 4mhz around 8 seconds with no processing other than simple paging. That's too slow. Allison ------------------------------ Message: 7 Date: Fri, 9 Nov 2012 23:39:16 -0200 From: "Alexandre Souza - Listas" <pu1bzz.listas at gmail.com> To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk at classiccmp.org> Subject: Re: P112 question - what can you run that uses 1MB of RAM? Message-ID: <F8B4613B967146C7AEA1AC774F475533 at tababook> Content-Type: text/plain; format=flowed; charset="iso-8859-1"; reply-type=response > Actually no. To do that you need to be able to process the data rapidly > enough to lay down dots > as the drum rotates. > ... I love this list, I learn more and more every day :o) ------------------------------ Message: 8 Date: Fri, 09 Nov 2012 18:41:58 -0700 From: ben <bfranchuk at jetnet.ab.ca> To: cctalk at classiccmp.org Subject: Re: P112 question - what can you run that uses 1MB of RAM? Message-ID: <509DB0E6.6040001 at jetnet.ab.ca> Content-Type: text/plain; charset=ISO-8859-1; format=flowed On 11/9/2012 6:15 PM, allison wrote: > On 11/09/2012 07:50 PM, ben wrote: >> On 11/9/2012 5:30 PM, Alexandre Souza - Listas wrote: >>>> Tell me what toner does a P112 use or is that used to color the 1MB of >>>> ram?? >>> >>> Well, a 64-K CPM system will not print raster graphics with ease on >>> a Laser Printer...You need more RAM! >>> >>> :oD >>> >>> Well, at least I tried :D >>> >> >> Well if you could access the toner drum directly from the host cpu, I >> am sure you could emulate a generic mono-spaced printer like a TTY in >> 16K including the printer fonts. >> Ben. >> > > Actually no. To do that you need to be able to process the data rapidly > enough to lay down dots > as the drum rotates. That is a mechanical issue, not the idea of charging a drum with a laser. The old, cheaper hardware, faster software problem here. I don't think software has yet to solve the real problem of modern printers, is that text on the screen does NOT match the printed page, but that is off topic. > The key thing for Laser printing (or any page printer) is the bit image > need to exist before > the paper moves or at least be preprocessed so that the raster image > processor can fill > a "band buffer" . The Video dot rate for a DEC LN01 (xerox 12PPM > engine) was about 7mhz. > The early character only version use a 12mhz 80186 with 8089 to keep up, > The system IO > to the host was handled by the 8089. Oddly the 8PPM LN03 Ricoh based > engine was not much > slower on the video clock. In the late 80s there were two lasers often > those that were > band buffer and generally limited to text and limited graphics and a > higher priced version > that had enough ram to buffer the page so the image could be composed > before the paper > was even moved. I think history of Time-Sharing computers had a big impact here. You needed BIG fast page laser printer to share between users, so high speed printer was needed. Speed I don't think changed much over the years, but build quality HAS dropped. > Actually I use my CP/M-80 system to lay down images on a real > Laserjet4L. The price is that > I need to run the system for a long time to create bit images to > transmit. That takes hours > even with ram and bit of buffering to hard disk. Even then the printer > is doing much of the > heavy lifting. Custom software, or using a driver for a text processing package? > Allison > Ben. ------------------------------ Message: 9 Date: Fri, 9 Nov 2012 17:42:39 -0800 (PST) From: Cameron Kaiser <spectre at floodgap.com> To: cctalk at classiccmp.org Subject: Re: Disk drive manuals Message-ID: <201211100142.qAA1gdBn30408900 at floodgap.com> Content-Type: text/plain; charset=US-ASCII > > VERY little interest in books. And these are some of the better ones. > > WhatamI gonna do when I get down to the boxes of Sybex books and crappy > > books on WordPerfect? > > Build a fort and throw AOL CDs at people passing by? I like the floppies. They have those nice metal edges which make a ragged laceration if you get the right spin on 'em. -- ------------------------------------ personal: http://www.cameronkaiser.com/ -- Cameron Kaiser * Floodgap Systems * www.floodgap.com * ckaiser at floodgap.com -- Use foresight, and pessimism. ---------------------------------------------- ------------------------------ Message: 10 Date: Fri, 09 Nov 2012 21:20:32 -0500 From: Dave McGuire <mcguire at neurotica.com> To: General Discussion: On-Topic and Off-Topic Posts <cctalk at classiccmp.org> Subject: Laser printers, was Re: P112 question - what can you run that uses 1MB of RAM? Message-ID: <509DB9F0.2000206 at neurotica.com> Content-Type: text/plain; charset=ISO-8859-1 On 11/09/2012 08:41 PM, ben wrote: >> The key thing for Laser printing (or any page printer) is the bit image >> need to exist before >> the paper moves or at least be preprocessed so that the raster image >> processor can fill >> a "band buffer" . The Video dot rate for a DEC LN01 (xerox 12PPM >> engine) was about 7mhz. >> The early character only version use a 12mhz 80186 with 8089 to keep up, >> The system IO >> to the host was handled by the 8089. Oddly the 8PPM LN03 Ricoh based >> engine was not much >> slower on the video clock. In the late 80s there were two lasers often >> those that were >> band buffer and generally limited to text and limited graphics and a >> higher priced version >> that had enough ram to buffer the page so the image could be composed >> before the paper >> was even moved. > > I think history of Time-Sharing computers had a big impact here. You needed > BIG fast page laser printer to share between users, so high speed > printer was > needed. Speed I don't think changed much over the years, but build > quality HAS dropped. The build quality for consumer crapware has dropped, but if you buy that stuff, you get what you deserve. I had a DEC LN01 for a long time. It was a cantankerous beast but it was built like a tank. (I would love to have one again, if anyone has one lying around) Today's GOOD printers are built every bit as well. -Dave -- Dave McGuire, AK4HZ New Kensington, PA ------------------------------ Message: 11 Date: Fri, 09 Nov 2012 21:22:01 -0500 From: Dave McGuire <mcguire at neurotica.com> To: General Discussion: On-Topic and Off-Topic Posts <cctalk at classiccmp.org> Subject: PC-1/CX cartridge compatibility, was Re: P112 question - what can you run that uses 1MB of RAM? Message-ID: <509DBA49.6000708 at neurotica.com> Content-Type: text/plain; charset=ISO-8859-1 On 11/09/2012 06:00 PM, Fred Cisin wrote: >>> . . . and the lab staff at the college (25 years ago) found out that if >>> you fill the copier cartridge with printer toner, and then try to use it >>> in the copier, it produces a very poor quality reverse video image. > On Fri, 9 Nov 2012, Tony Duell wrote: >> I wonder whathte physical explanation for that is. > > The only explanation that I was given was: > "The company selling the refill kit (Torx driver, page of instructions, > bag of toner) sent the wrong toner." If memory serves, the drum coating was a completely different composition, it was even a different color. -Dave -- Dave McGuire, AK4HZ New Kensington, PA ------------------------------ Message: 12 Date: Fri, 9 Nov 2012 22:23:32 -0500 From: Ethan Dicks <ethan.dicks at gmail.com> To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk at classiccmp.org> Subject: Re: Wanted: Research Inc. Teleray terminals Message-ID: <CAALmimnXUWH=3g+dWLLZXRJcUk+jLjAhDx9JNd_9tRDzgP8fBQ at mail.gmail.com> Content-Type: text/plain; charset=ISO-8859-1 On Tue, Mar 13, 2012 at 4:37 PM, Ethan Dicks <ethan.dicks at gmail.com> wrote: > On Tue, Mar 13, 2012 at 2:24 PM, Eric Smith <eric at brouhaha.com> wrote: >> Richard wrote: >> I wrote about Teleray terminals: >> >>> I'm not sure which model, but it was reportedly 6502-based, and had some >>> kind of hacked firmware installed. > > Are there any photos of the PCBs out there? I have a small box of > what appear to be 6502-based terminal boards with lots of socketed > TTL. I do not know the vendor, but I can look for distinctive > markings. I never had the terminals. I just picked up a box of > "random" boards from a Hamfest some time ago. I found one of the boards tonight... It's really hard to read the hand-written scrawl on the label, but it certainly _could_ be 1061. The board has several DB25s on one edge, a prominent pair of 9114 SRAMs, what looks like a ROM in one corner (if 8316 is a part number for a 2K masked-programmed ROM), and I think it attaches to the video circuit with a two-row 0.1" ribbon cable of about 20 pins. There are a pair of side-toggle dip-switches on one edge for what looks like configuration settings. I did a bit of googling for the Teleray 1061 and about all I found out is that it was released in 1978 for around $1100 and there are some quirks with it enough to get mentioned in termcap comments. I did not find schematics or a proper manual. When I got it, I didn't know what it was and I got it for the socketed parts. If anyone is trying to fix a Teleray 1061, this could be your lucky day. The chips on it are worth a few dollars to me as spares but not a vast amount. I already have more dumb terminals that I could ever use, so I see no reason why I'd ever try to turn this board into a working terminal. If someone wants it, contact me off-list, otherwise, it'll stay in the parts bin for now. -ethan ------------------------------ Message: 13 Date: Fri, 09 Nov 2012 22:29:31 -0500 From: allison <ajp166 at verizon.net> To: General Discussion: On-Topic Posts Only <cctech at classiccmp.org> Subject: Re: P112 question - what can you run that uses 1MB of RAM? Message-ID: <509DCA1B.80209 at verizon.net> Content-Type: text/plain; charset=ISO-8859-1; format=flowed On 11/09/2012 08:41 PM, ben wrote: > On 11/9/2012 6:15 PM, allison wrote: >> On 11/09/2012 07:50 PM, ben wrote: >>> On 11/9/2012 5:30 PM, Alexandre Souza - Listas wrote: >>>>> Tell me what toner does a P112 use or is that used to color the >>>>> 1MB of >>>>> ram?? >>>> >>>> Well, a 64-K CPM system will not print raster graphics with >>>> ease on >>>> a Laser Printer...You need more RAM! >>>> >>>> :oD >>>> >>>> Well, at least I tried :D >>>> >>> >>> Well if you could access the toner drum directly from the host cpu, I >>> am sure you could emulate a generic mono-spaced printer like a TTY in >>> 16K including the printer fonts. >>> Ben. >>> >> >> Actually no. To do that you need to be able to process the data rapidly >> enough to lay down dots >> as the drum rotates. > > That is a mechanical issue, not the idea of charging a drum with a laser. You are not serious. The drum rotates slowly but each line of pixels is the length of the printed area (8") times the 300line per inch of the circumference and at 8PPM the average drum in small printers turned several times to print the whole 11 inchs. It's a raster scan system. Character printers could compose at a rate that was one cell height at a time so they use band buffers that often allowed typically 8 or 16 lines on the drum to be buffered at a time while the next lines were being processed. That scheme was good to a point but there were pathological cases that resulted in page to complex and imaging failures. often overstrikes were the likely culprit. For 8PPM that means moving 7920000 pixels in about 7.5 seconds without much dead time. You cannot stop the drum during the process. The laser does not charge the drum, it's used to discharge it, you can do it with LEDs as well but they were slow back then. The typical cycle is charge corona, writing (laser, or led raster scan), developing (toner) transfer(transfer corona) and cleaning (discharge corona sometimes), and doctoring (scrape the remaining toner off with a silicone rubber blade). Repeat as eneded. Polarities and what optical range this are done are dependent on if the drum was selenium coated or the organic photoreceptor that Cannon wrapped the cartridge around. > > The old, cheaper hardware, faster software problem here. I don't think > software has yet to solve the real problem of modern printers, > is that text on the screen does NOT match the printed page, but that > is off topic. That belongs back with one of the threads that had NAPLPS in it or maybe WYSIWYG when WYGINS is the reality. No one prints at under 100 DPI. Maybe now with very high resolution color displays we see what we get but then the best CRT I ran in color was 1280x1024 and .27 dot pitch (about 70-80dpi) which is still coarse by then 300DPI standard. That meant the tube could not display (even in B&W) what the printer could. New we have displays that are easily better than 300dpi but printers can do 600dpi and maybe more. That doesn't even cover color. > >> The key thing for Laser printing (or any page printer) is the bit image >> need to exist before >> the paper moves or at least be preprocessed so that the raster image >> processor can fill >> a "band buffer" . The Video dot rate for a DEC LN01 (xerox 12PPM >> engine) was about 7mhz. >> The early character only version use a 12mhz 80186 with 8089 to keep up, >> The system IO >> to the host was handled by the 8089. Oddly the 8PPM LN03 Ricoh based >> engine was not much >> slower on the video clock. In the late 80s there were two lasers often >> those that were >> band buffer and generally limited to text and limited graphics and a >> higher priced version >> that had enough ram to buffer the page so the image could be composed >> before the paper >> was even moved. > > I think history of Time-Sharing computers had a big impact here. You > needed > BIG fast page laser printer to share between users, so high speed > printer was > needed. Speed I don't think changed much over the years, but build > quality HAS dropped. > No build quality is better. We ( I was part of the team that developed the LN01, LN03 and LPS40 and LPS20 series at DEC) found that getting engines that could run at speed for 90 days without breakdown was a mechanical impossibility, we had customers prove it repeatedly. Back then the choices were Cannon, Ricoh, Xerox and in about that order of durability. Getting 200,000 to 300,000 pages between failure was the challenge and price was the other. To get to 40PPM (LPS40) a microVAX in the printer pushing a custom bitslice processor and a even more custom bitbliter so that a reasonably complex page set could be printed at 40PPM. That's what it took then. But the printer took postscript directly and printed up to B size pages with no page too complex issues. Now we have cheap fast cpus that can do that. This development was in the time frame of the "workstation" so the big VAX in the back was not always the factor. However the cost of even slow printers was high enough Then that shared resource was what the customer said. The price of a 8PPM printer then is far higher than a 20ppm color printer now. So the existence of timesharing was and is a red herring as big systems printers printed less graphics and small single users wanted all the printing capability.. Often the single user was a workstation of even then a PC with Hercules or early CGA video. >> Actually I use my CP/M-80 system to lay down images on a real >> Laserjet4L. The price is that >> I need to run the system for a long time to create bit images to >> transmit. That takes hours >> even with ram and bit of buffering to hard disk. Even then the printer >> is doing much of the >> heavy lifting. > Custom software, or using a driver for a text processing package? > Very custom, in assembler as excess overhead was painful and I had one of the uncommon 10mhz z80s. I did it mostly to prove a point but waiting hours per page was not practical. Doing hi res text only documents was easy and people were doing it tot he limits of what printers were available. Graphics just wanted more of everything by many orders of magnitude. Large ram was cost and speed issues but doable then. Code can overcome a lot of things but raw CPU speed was and is the prime solution (enter GPUs). FYI I still run that LJ4L as its durable and parallel interfaces to all my systems directly save for the latest PC with no IO save for USB ( PIC24 programmed for USB to parallel solution). Allison ------------------------------ Message: 14 Date: Fri, 9 Nov 2012 23:14:03 -0500 (EST) From: Mouse <mouse at Rodents-Montreal.ORG> To: cctalk at classiccmp.org Subject: Re: P112 question - what can you run that uses 1MB of RAM? Message-ID: <201211100414.XAA23825 at Sparkle.Rodents-Montreal.ORG> Content-Type: text/plain; charset="iso-8859-1" > I don't think software has yet to solve the real problem of modern > printers, is that text on the screen does NOT match the printed page, I don't think that - to the extent it _is_ a problem - _can_ be solved, as long as printers are higher-resolution than displays. (Not unless you artificially cripple the printout to match the display's resolution, at least.) > but that is off topic. Well, to a point. Some classic machines had display resolutions close to their printer resolutions, and the two _could_ match fairly well.... /~\ The ASCII Mouse \ / Ribbon Campaign X Against HTML mouse at rodents-montreal.org / \ Email! 7D C8 61 52 5D E7 2D 39 4E F1 31 3E E8 B3 27 4B ------------------------------ Message: 15 Date: Fri, 9 Nov 2012 20:36:21 -0800 (PST) From: Chris Tofu <rampaginggreenhulk at yahoo.com> To: "cctalk at classiccmp.org" <cctalk at classiccmp.org> Subject: Sam's Computerfacts 4851 Disk Drive Message-ID: <1352522181.91090.YahooMailNeo at web141104.mail.bf1.yahoo.com> Content-Type: text/plain; charset=us-ascii Need it. Anyone have it? Hook me up, ay/. ------------------------------ Message: 16 Date: Sat, 10 Nov 2012 10:39:21 +0000 From: Roger Pugh <rogpugh at mac.com> To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk at classiccmp.org> Subject: Re: P112 question - what can you run that uses 1MB of RAM? Message-ID: <509E2ED9.7040701 at mac.com> Content-Type: text/plain; CHARSET=US-ASCII; format=flowed On 10/11/2012 01:15, allison wrote: > On 11/09/2012 07:50 PM, ben wrote: >> >> >> Well if you could access the toner drum directly from the host cpu, I >> am sure you could emulate a generic mono-spaced printer like a TTY in >> 16K including the printer fonts. >> Ben. >> > There was a laserprinter available for i think the Atari ST (or later model) that did away with the processor and and used the atari. This cut the cost of the printer down to about 1000 pounds/dollars which was very cheap in its time, esp when compared to the apple laser.. I think it was a canon engine. This idea was used in the "windows only" laser printers where the ripping was done on the PC and the raw data sent to the printer via parallel port. Roger ------------------------------ Message: 17 Date: Sat, 10 Nov 2012 10:45:57 +0000 From: Roger Pugh <rogpugh at mac.com> To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk at classiccmp.org> Subject: Re: P112 question - what can you run that uses 1MB of RAM? Message-ID: <509E3065.3 at mac.com> Content-Type: text/plain; CHARSET=US-ASCII; format=flowed On 09/11/2012 19:45, Tony Duell wrote: >> . . . and the lab staff at the college (25 years ago) found out that if >> you fill the copier cartridge with printer toner, and then try to use it >> in the copier, it produces a very poor quality reverse video image. > I wonder whathte physical explanation for that is. > > -tony Pretty much every type of printer or copier uses different photoreceptor/toner/developer/carrier. As these all work on electrostatic priniples things such as charge, spacing between components, materials used in consumables, fusing temps are all different. 11 years working at Xerox, 12 more years on toner based digital printing... Roger ------------------------------ Message: 18 Date: Sat, 10 Nov 2012 11:18:19 +0000 From: Roger Pugh <rogpugh at mac.com> To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk at classiccmp.org> Subject: Re: P112 question - what can you run that uses 1MB of RAM? Message-ID: <509E37FB.7050505 at mac.com> Content-Type: text/plain; CHARSET=US-ASCII; format=flowed On 10/11/2012 01:15, allison wrote: > > Actually no. To do that you need to be able to process the data > rapidly enough to lay down dots > as the drum rotates. > > The key thing for Laser printing (or any page printer) is the bit > image need to exist before > the paper moves or at least be preprocessed so that the raster image > processor can fill > a "band buffer" . The Video dot rate for a DEC LN01 (xerox 12PPM > engine) was about 7mhz. > The early character only version use a 12mhz 80186 with 8089 to keep > up, The system IO > to the host was handled by the 8089. Oddly the 8PPM LN03 Ricoh based > engine was not much > slower on the video clock. In the late 80s there were two lasers > often those that were > band buffer and generally limited to text and limited graphics and a > higher priced version > that had enough ram to buffer the page so the image could be composed > before the paper > was even moved. I am a tech at a company called XEIKON. We manufacture color digital presses.. We print on rolls of paper of upto 50cm (20inch) at 1200DPI at speeds of 19 meters a min (about 60ft/min??). The presses are 5 colour on both sides.. Being roll fed presses we cant stop the press and wait for the data, LOTS of FPGA's are required to keep up the data stream. We are low end industrial, some of the expensive stuff like Kodaks Prosper of course need lots more.... Roger ------------------------------ Message: 19 Date: Sat, 10 Nov 2012 08:41:04 -0700 From: ben <bfranchuk at jetnet.ab.ca> To: cctalk at classiccmp.org Subject: Re: P112 question - what can you run that uses 1MB of RAM? Message-ID: <509E7590.3070405 at jetnet.ab.ca> Content-Type: text/plain; charset=ISO-8859-1; format=flowed On 11/9/2012 9:14 PM, Mouse wrote: >> I don't think software has yet to solve the real problem of modern >> printers, is that text on the screen does NOT match the printed page, > > I don't think that - to the extent it _is_ a problem - _can_ be solved, > as long as printers are higher-resolution than displays. (Not unless > you artificially cripple the printout to match the display's > resolution, at least.) > >> but that is off topic. > > Well, to a point. Some classic machines had display resolutions close > to their printer resolutions, and the two _could_ match fairly well.... Well not resolution issue, but font scaling. Windows seems to have lost TrueType somewhere on my machine. For what little C programing I do, fixed with fonts is what I want! Ben. PS. If people were happy with printer output, programs like TeX would not be here. ------------------------------ Message: 20 Date: Sat, 10 Nov 2012 17:50:02 +0100 From: Joost van de Griek <gyorpb at gmail.com> To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk at classiccmp.org> Subject: Re: Networking a Macintosh SE/30 Message-ID: <802939B0-23D9-4074-99A4-29D786921F3C at gmail.com> Content-Type: text/plain; charset=us-ascii On 9 Nov 2012, at 23:41 , Schindler Patrik <poc at pocnet.net> wrote: > Am 09.11.2012 um 20:46 schrieb Tony Duell: > >>> I recall the same thing. >> And o yet again Apple did not adhere to an accepted standard.... > > Yes, because the monitor port on Macs already had been DB15-F, years before Macs with Onboard-Ethernet came to life. Apple was eager to keep setting up Macs as easy as possible. That includes distinct connectors for distinct functions. Size was also a consideration. Standard AUI connectors would ill fit on PowerBooks. .tsooJ -- There are perhaps 5% of the population that simply can't think. There are another 5% who can, and do. The remaining 90% can think, but don't. - Robert A. Heinlein -- Joost van de Griek <http://www.jvdg.net/> ------------------------------ Message: 21 Date: Sat, 10 Nov 2012 09:02:15 -0800 (PST) From: Jack Rubin <jack.rubin at ameritech.net> To: classiccomp list <cctalk at classiccmp.org>, Ed Groenenberg <quapla at xs4all.nl>, Philipp Hachtmann <hachti at hachti.de> Subject: Needed - rear brackets for BA23 mounting kit Message-ID: <1352566935.26136.YahooMailRC at web181304.mail.ne1.yahoo.com> Content-Type: text/plain; charset=us-ascii I'm racking a BA23 system into a corporate cabinet, using a BA23-AR mounting kit. I have the rails, front brackets and front cover but I'm lacking the rear brackets that secure the rails to the rear cabinet posts. Apparently some racks require these brackets and some don't. I have _three_ racking kits and none of them have the rear brackets. The brackets are short pieces of sheet metal, about 2" deep and 3" high. They are bent in a shallow U shape with an extended tab on one leg. Part numbers are 7428372-01 and 7428372-02 (left and right sides). They are shown in the BA23 Enclosure Maintenance manual, p 2-22. Please let me know if you can spare a pair (or more) of these items. Thank you, Jack ------------------------------ Message: 22 Date: Sat, 10 Nov 2012 18:43:57 +0100 From: Jochen Kunz <jkunz at unixag-kl.fh-kl.de> To: cctalk at classiccmp.org Subject: Re: To Metcal, or not to Metcal? Re: RepRapping. Was:Re: Restoring an Intel SDK-86 to "mostly like new" condition Message-ID: <20121110184357.52697ee564c856131a1e998a at unixag-kl.fh-kl.de> Content-Type: text/plain; charset=US-ASCII On Thu, 01 Nov 2012 16:27:25 -0400 Dave McGuire <mcguire at neurotica.com> wrote: > If you end up getting one, > I'd appreciate knowing what you think of it. The Oki MFR-2241 arrived today. I did some (de-) soldering on scrap PCBs in the last hours. It is amazing how the small 1 mm chisel cartridge heats up large through hole pins soldered to big ground planes. My old iron wolud not be able to do this, in no way. The OKi tips are thin and short. Wheres the heater + tip of my old iron is much thicker and longer. A touch up on a single SMD pin is much easier with the OKi, as the total length of the tip is much shorter. The "precision" tweezers aren't that precise as expected, but its OK. Wane desolder that SO8? Grab with the tweezers, wait a second or two and it comes off. Wane desolder that LM2676 (dPak)? Tin the leads for better heat conduction, grab with the tweezers, wait some more seconds (large ground plane under the chip) and it comes off... My setup cost me 830 EUR (approx. 1055US$) including some tips. The single PSU variant, MFR-1100, is 300 EUR (approx. 380US$). If you are in buissines for a new soldering iron and can spend that much money, get at least a MFR-1100. It is worth every single cent! I'll get a pair of larger tips for the tweezers later. These are expensive, around 100 EUR. But desoldering a DIP16 or the like will be a piece of cake with them. p.s. At unpacking I noticed that the pacel had been droped top down onto the flor. But the PSU survived without a single scratch. It is build out of cast aluminium. It is heavy and build like a tank. Its really industrial grade equipment. -- \end{Jochen} \ref{http://www.unixag-kl.fh-kl.de/~jkunz/} End of cctalk Digest, Vol 111, Issue 25 ***************************************

13 years, 7 months

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Unusual PC hardware and EPROMS for sale

by clemfm＠gmail.com

Hi Jim, I've seen your 386 card on ebay and whilst looking for drivers came across your post here: http://classiccmp.org/pipermail/cctech/2012-October/137378.html I'd take both the 386 and 68020 cards, however drivers are an issue as I can't seem to locate them on the web or newsgroups etc. Any luck finding them at your end? Regards Clem

13 years, 7 months

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P112 question - what can you run that uses 1MB of RAM?

by ethan.dicks＠gmail.com

Hi, All, I'm not joining in the kickstarter because I already have a P112 I purchased as a bare PCB and loose SMD parts in the previous round. I just uncovered it last night moving some things around and started tossing build-parts into a bin to put it together. I do happen to have a couple of 32-pin JEDEC 512K SRAMs (originally for an SBC6120 RAM disk PCB that got destroyed in the mail), so I _can_ fully populate it, but it got me wondering... what CP/M software is out there (except maybe a RAM disk) that can *use* 1MB? I have a bit of experience with 48K-64K CP/M machines (mostly Kaypro, but some others), because back when I was using it, that was how much memory 8-bitters had. I didn't mess with them much after 1985, so if there was still any development on that platform, I didn't see it. So why *does* the P112 have 1MB of RAM? What's the space over 64K good for? Cheers, -ethan

13 years, 7 months

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cctech Digest, Vol 111, Issue 21

by francois.dion＠gmail.com

> From: Tom publix <ittybittybytes at gmail.com> > I'll be putting some apollo stuff up and maybe some other stuff later this > week. Of course, mention your a member of the ccmp list and get some > freebies thrown in. I posted a few weeks back: I'm looking for a DN1000, or similar era (pre HP). Do you have anything like that? Fran?ois -- solarisdesktop.blogspot.com - raspberry-python.blogspot.com

13 years, 7 months

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4 bit cpu with 74xx

by francois.dion＠gmail.com

Someone built a 4 bit cpu using 74xx series chips: http://dangerousprototypes.com/2012/11/01/7400-competition-entry-fourbit-4-… Fran?ois -- solarisdesktop.blogspot.com - raspberry-python.blogspot.com

13 years, 7 months

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Networking a Macintosh SE/30

by dgriffi＠cs.csubak.edu

I think I have my head wrapped around the hardware tuneups that my Mac SE/30 requires. Moving on to the software. I've found install media and can get System 6 installed just fine. I can read and write HD floppies in my Linux box to move things in and out by sneakernet. I'm having a nasty time getting the ethernet board to work. I'm using an Asante MacCon PSD slot ethernet board. I downloaded the driver pack (still at Asante's website), made a driver install disk, and installed the driver stuff. This installs a driver for the board, ethertalk, and MacTCP. A diagnostic program on the disk says that the ethernet board is checking out fine, but I can't get the machine to talk or listen to the network. It's not at all clear how the MacTCP panel is supposed to be used. I've tried following http://www.applefool.com/se30/ and nothing works (though I can't get the Legacy Recover CD referred to there). Is there someone on this list who has done this before who can help me? -- David Griffith dgriffi at cs.csubak.edu 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?

13 years, 7 months

25
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P112 kits now with parts

by dgriffi＠cs.csubak.edu

I did some number crunching and decided that I can indeed produce P112 kits with all the parts you'll need. See http://661.org/p112 or http://p112.feedle.net -- David Griffith dgriffi at cs.csubak.edu 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?

13 years, 7 months

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Mac Stuff including HyperDrive Install

by rrissell＠gmail.com

Hi all, I'm Robyn and I'm a computer pack-rat... "Hi Robyn!" I'm doing some cleanup at the behest of the wife and have some vintage gear to get to a new home. Anything is available for pickup or for the price of shipping. (Pickup is preferred as vintage rotating media does not like un-parked shipping) 1. Hyperdrive 2.0 install (used - condition unknown - SEEMS to be all there with drive and install binder, driver for Mac available online) 2. Powerbook 160 installed in a Powerbook 140 case (greyscale, operational, Lead-Acid batteries in condition you'd expect). (MAY be able to find the original MB for PowerBook 140, was a display cable issue) 3. Mac HD-20 external HD for Mac Plus (operational with installed system) 4. Apple External SCSI CD drive (the big long one, includes HD-30 cable and terminators) 5. Copy of MacIntosh 68000 development system with disks 6. Copy of MacIntosh, Lost Treasures of Infocom 7. Printed copy of MacIntosh User's Guide + HyperCard Manual 8. Mac SCSI IOMEGA ZIP drive (with P/S and 3 new Mac Formatted ZIP disks) 9. Mac 800K external drive 10. Misc Mac Plus mice, keyboard, microphone and Phone-Net dongles 11. Floppies and other Misc as I find them. Robyn rrissell at gmail.com Lake Orion, MI

13 years, 7 months

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P112 kickstarter success

by dgriffi＠cs.csubak.edu

I just thought you'd all be interested to hear that my P112 Kickstarter project has been successfully funded. Now for the formalities of getting the money transferred to me and I can start buying parts. -- David Griffith dgriffi at cs.csubak.edu 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?

13 years, 7 months

4
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Liberator: the untold story of the first British laptop

by lproven＠gmail.com

Part One: Taking over the typing pool By Tony Smith ? Get more from this author Posted in Hardware, 12th November 2012 12:01 GMT Feature In 1985, the UK home computer boom was over. Those computer manufacturers who had survived the sales wasteland that was Christmas 1984 quickly began to turn their attention away from the home users they had courted through the first half of the 1980s to the growing and potentially much more lucrative business market. The IBM PC had been launched four years earlier, in 1981. The 5150 and the clones it had inspired at Compaq and other computing firms new and established were winning an increasing share of the market. Some British manufacturers were content to follow the American lead and offer clones of their own. Others, however, believed they could win with systems of their own design. [...] http://www.theregister.co.uk/2012/11/12/the_secret_history_of_liberator_the… -- Liam Proven ? Profile: http://lproven.livejournal.com/profile Email: lproven at cix.co.uk ? GMail/G+/Twitter/Flickr/Facebook: lproven MSN: lproven at hotmail.com ? Skype/AIM/Yahoo/LinkedIn: liamproven Tel: +44 20-8685-0498 ? Cell: +44 7939-087884

13 years, 7 months

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NMOS 6502 internals

by jules.richardson99＠gmail.com

Just looking at some 6502 stuff, and the program counter notes at http://www.6502.org/tutorials/6502opcodes.html#PC say: "When the 6502 is ready for the next instruction it increments the program counter before fetching the instruction." ... which seems to imply that T-cycle 0 of an instruction first increments PC, then fetches the opcode from the memory location pointed to by PC. Which seems nuts, as it would also mean that either jump addresses would have to be off by 1, or at the start of T0 the CPU would have to determine what the _previous_ instruction was and then either increment PC or leave it alone accordingly. And all of this would have to happen before the address is placed on the address bus approximately 1/4 of the way into T0. I expect that what actually happens is that PC's contents are latched onto the address bus during the clock-low half of T0, R/W is asserted, and *then* PC is incremented. During the subsequent clock-high half of T0, the data bus will reflect the contents of [PC] as it was at the start of T0, and the PC increment will complete, so that at the end of T0 PC is pointing to either an operand byte for the current instruction, or the next instruction in the sequence (if the current instruction has no operands). Can anyone confirm? Although technically I suppose the text on the site would still be accurate, because the increment would actually have begun before the fetch had entirely completed, but the way it reads to me is that the opcode fetch happens at [PC+1], not [PC]... The text then goes on to say: "Once it has the op code, it increments the program counter by the length of the operand, if any." 6502 operands can be 1 or 2 bytes in length; the above seems to imply that for a 2-byte operand it would add 2 to PC - meaning it would have to fetch the first operand byte from PC-1 (and there's no PC-decrement logic in sight). I expect that what it really does is fetch the first byte from PC (which will have been incremented during the opcode fetch cycle), increments PC by 1, fetches the second byte, and increments PC again. Right? :-) Now, someone on the BBC micro list said they think that the 6502 might always do an operand byte fetch immediately after an opcode fetch, even if that instruction doesn't have any operand data - simply because it takes time for the CPU to decode the instruction. If it turns out that the instruction doesn't have an operand, it avoids doing the PC increment that would have been done if an operand were present (which means that at the next cycle, which the CPU will perform as an opcode fetch, the same byte is re-read from memory and interpreted as an instruction). Does anyone know if this "always read" is what happens? Or is the instruction decoding actually quick enough for the CPU to know by the end of T0 that there's no opcode data (and so it can reset its cycle counter and perform the next cycle as an opcode fetch)? cheers Jules

13 years, 7 months

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Differences between KFQSA submodels

by robert.jarratt＠ntlworld.com

I have come a across someone selling two different KFQSA boards. Is there a significant difference between a KFQSA-SG-RE and a KFQSA-SF-RE? Regards Rob

13 years, 7 months

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More Shameless classic parts trafficking

by ittybittybytes＠gmail.com

Hi everybody! More shameless classic parts trafficking. These go live on 11/12/ @ 2pm on epay 251183147655 DEC 11/04, dual sms floppy drives, Vt100 and rt-11 251183206220 DEC tm03 controller unit I'll be putting some apollo stuff up and maybe some other stuff later this week. Of course, mention your a member of the ccmp list and get some freebies thrown in. Cheers tom

13 years, 7 months

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Ohio Scientific Challenger 1P video

by terry＠webweavers.co.nz

Some of you may know of this item already but some may not, and might be interested. It's a short 10min YouTube video on one of the units in my collection: An OS Challenger 1P http://youtu.be/zrOYkKf5Y5k Terry Stewart (Tez)

13 years, 7 months

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ISO HP-UX 9.10 install CD

by shutchman＠gmail.com

Rik, I have an HP382 that I would like to resurrect. It has no SCSI drive in it, so if you still have ISO for HP-UX 9.10 available ( is it two CD's ?) , I can get the machine back into service. Regards, Hutch >* -----Oorspronkelijk bericht----- *>* Van: cctech-bounces at classiccmp.org <http://www.classiccmp.org/mailman/listinfo/cctech> [mailto:cctech-bounces at classiccmp.org <http://www.classiccmp.org/mailman/listinfo/cctech>] *>* Namens mls *>* Verzonden: donderdag 10 november 2011 6:30 *>* Aan: cctech at classiccmp.org <http://www.classiccmp.org/mailman/listinfo/cctech> *>* Onderwerp: Re: ISO HP-UX 9.10 install CD *>* *>* Rik, *>* *>* Back in 2009, you had posted on this thread that you could make HP-UX 9.10 *(HP >* 9000 series 300) ISO's available, but the thread, basically ended there. *I have >* been looking on and off for this software for some time for an HP 360 that *I >* have. *>* *>* Thanks, *>* Chris * Chris, I uploaded the iso's to several members of this list, if you have a ftp server you can have it. And maybe you don't know bout on the HP-museum site : http://hpmuseum.net/exhibit.php?swc=6 you can download a lot of software for the HP 9000/300 series -Rik

13 years, 7 months

2
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Really networking an SE/30

by dgriffi＠cs.csubak.edu

Let's try this again... Can I get a step-by-step on going from a fresh install of System 6 on a Macintosh SE/30 to being able to share files from a netatalk server? Here's what I have in inventory: System 6 install floppies Asante PSD ethernet board for SE/30 with install floppy MacTCP 2.0.6 MacTCP 2.1 MacTCP Ping 2.0.2 (doesn't recognize MacTCP 2.1) ZM Appleshare Workstation 3.5 Network Software Install 1.5.1 The ethernet board blinks when plugged into a network. That's as far as I can get. The interface for MacTCP is impenetrable. -- David Griffith dgriffi at cs.csubak.edu 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?

13 years, 7 months

5
5
0 0

HP FAB needed

by jwest＠classiccmp.org

I need an HP 21MX/E FAB board, preferrably with E-FPP and E-DMI. If possible, would also like a blank FAB as a spare. Even if all you have is a blank board, I'd still be interested and I'd just burn the roms for it. Anyone have any of the above and willing to make some trade or $$? If so, drop me an email! J

13 years, 7 months

1
0
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mystry cards make offer or they going in trash :(

by tdk.knight＠gmail.com

dunno what to do with these http://img231.imageshack.us/img231/4628/cardsdn.jpg witch aparently came outa one of these http://img152.imageshack.us/img152/2431/machean.jpg witch was used for testing peoples ability to drive while drunk. anyone interested? otherwise the local hackerspace is going to send to the trash heap

13 years, 7 months

8
8
0 0

Progress manuals

by BHuntsman＠mail2.cu-portland.edu

Anyone here familiar with the Progress database and 4GL? I have a pretty complete set of manuals and a partial set for v8 that I'd be willing to give for free minus postage... Anyone interested? -Ben

13 years, 7 months

1
0
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updated N8VEM PCB inventory list

by LYNCHAJ＠YAHOO.COM

Hi I've updated the N8VEM wiki PCB inventory list to correct several inaccuracies and correct quantities available. There are many PCBs remaining so if you are looking for some please contact me. Especially there are some recent PCBs for the ECB like the DSKY, Color VDU, MF/PIC, and DiskIO V3 which may be of interest to you. There are technical data for these PCBs on the N8VEM wiki including schematics, PCB layout, KiCAD EDA files, software, photos, etc. http://n8vem-sbc.pbworks.com/w/browse/#view=ViewFolder&param=Board%20Informa tion Using the N8VEM mini SBC V8 and/or the ECB backplane PCBs is sufficient to build your own system. There are sufficient 6x0x PCBs to build 6502, 6809, or 6802 CPU based computers. There are some mini-boards like AT2XTKBD for $5 each that allow connecting AT/PS/2 keyboards to PC/XT computers. Also there are ECB to Z80 socket adapters which allow the ECB boards to be connected to a Z80 socketed CPU rather than an ECB bus. Here is the link for your review: http://n8vem-sbc.pbworks.com/w/page/35044530/PCB%20Inventory The PCBs are $20 each plus $3 shipping in the US and $6 elsewhere. If you are considering getting one or more now is the time! I am stuck and need to move the remaining boards to free up the funds to do other board orders/reorders. I appreciate all the community support for the N8VEM home brew computing project. Thanks and have a nice day! Andrew Lynch PS, there is also one S-100 8088 CPU board PCB remaining.

13 years, 7 months

1
0
0 0

Needed - rear brackets for BA23 mounting kit

by jack.rubin＠ameritech.net

I'm racking a BA23 system into a corporate cabinet, using a BA23-AR mounting kit. I have the rails, front brackets and front cover but I'm lacking the rear brackets that secure the rails to the rear cabinet posts. Apparently some racks require these brackets and some don't. I have _three_ racking kits and none of them have the rear brackets. The brackets are short pieces of sheet metal, about 2" deep and 3" high. They are bent in a shallow U shape with an extended tab on one leg. Part numbers are 7428372-01 and 7428372-02 (left and right sides). They are shown in the BA23 Enclosure Maintenance manual, p 2-22. Please let me know if you can spare a pair (or more) of these items. Thank you, Jack

13 years, 7 months

1
0
0 0

Looking for bracket for BA23 rack mount rails

by j＠ckrubin.us

I'm racking a BA23 system into a corporate cabinet, using a BA23-AR mounting kit. I have the rails, front brackets and front cover but I'm lacking the rear brackets that secure the rails to the rear cabinet posts. Apparently some racks require these brackets and some don't. I have _three_ racking kits and none of them have the rear brackets. The brackets are short pieces of sheet metal, about 2" deep and 3" high. They are bent in a shallow U shape with an extended tab on one leg. Part numbers are 7428372-01 and 7428372-02 (left and right sides). They are shown in the BA23 Enclosure Maintenance manual, p 2-22. Please let me know if you can spare a pair (or more) of these items. Thank you, Jack

13 years, 7 months

1
0
0 0

What is a VT52-NE

by michael.99.thompson＠gmail.com

The RICM just received a VT52-NE donation. Any idea what the difference is between a VT52-AA and VT52-NE? -- Michael Thompson

13 years, 7 months

1
0
0 0

Sam's Computerfacts 4851 Disk Drive

by rampaginggreenhulk＠yahoo.com

Need it. Anyone have it? Hook me up, ay/.

13 years, 8 months

1
0
0 0

Wanted: Research Inc. Teleray terminals

by legalize＠xmission.com

I'm looking for more information on the Teleray series of terminals >from Research, Inc. (Note: Teleray is the name of the terminal line, not the name of the company! Although later they referred to themselves as the "Teleray Division" of Research, Inc.) In particular I'm looking for manuals and other documentation. If you have a Teleray terminal and you're looking to get rid of it, I would be interested in purchasing it from you. I know of the following models: Year Model 1971 Teleray 3300 1975 Teleray 3900 1976 Teleray 3811 <1977? Teleray 3541 <1977? Teleray 3741 1977 Teleray 3841 1977 Teleray 4041 1978 Teleray 1061 1979 Teleray 10 1979 Teleray 11 1979 Teleray 12 1980 Teleray 14 <1981? Teleray 100 1982 Teleray 16 1985 Teleray 20-7305 <1990? Teleray 30 Thanks! -- "The Direct3D Graphics Pipeline" -- DirectX 9 version available for download <http://legalizeadulthood.wordpress.com/the-direct3d-graphics-pipeline/> Legalize Adulthood! <http://legalizeadulthood.wordpress.com>

13 years, 8 months

6
13
0 0

Disk drive manuals

by cisin＠xenosoft.com

I need to get rid of 60 boxes of stuff, and clear out my office. First up are some disk drive manuals. Pickup free in Berkeley, or pay priority mail, rounded up to the nearest multiple of $5 -- Grumpy Ol' Fred cisin at xenosoft.com (originals except where specified otherwise, although some of the originals appear to have been originally printed with a copier) Fujitsu "M2301B/M2302B : Microdisk Drives : CE Manual" xerox handwritten "LSI Version" MPI "Flexible disk drive Model 51/52 Product Manual" xerox copy Mitsubishi "Double-Sided Double Density Flexible Disk Drive M2894-63 : Standard Specifications" Seagate: (In generic binder): "ST506/412 OEM Manual" 36 pages 5.25" x 8.5" two holes drilled for fitting in generic 3 hole binder Feb 82 "ST506 Maintenance Manual" 53 pages 8.5 X 11 XEROGRAPHIC copy May 1982 (in another generic binder): Shugart: "8 Inch Floppy Disks Format Manual" December 1981 Stapled and drilled for binder, blue cover Business Reply cards - "Technical Publications Suggestion Form"! "The Headstrong Product Family" 10/79 11 x 25.5 double sided folded to 8.5X11 Pictures and "Comparative Detailed Specifications For All Shugart Disk Drives" "SA400 minifloppy(tm) Diskette Storage Drive OEM Manual" 8.5 X 11 Saddle stitched (and drilled) 2/77 "SA400 minifloppy(tm) Diskette Storage Drive OEM Manual" "Revision 5" 8.5 X 11 Saddle stitched (and drilled) 2/77 Sony: dozen loose xerox pages ""This chapter provides information on the standard disk drive fitted within the Apricot, the Sony OA-D31V . . ." (3.5" 70 track 600RPM, . . . Page 4,5 is "Interface Connection", with hand-written pin numbers added) Teac "Mini Flexible Disk Drive Specification : FD55A, FD55B, FD-55E, FD-55F, FD-55G" [what would the FD-55C and FD-55D be?] Xerographic copy. Comb (GNC) binding Weltec: "Product Reference Manual : 5 1/4 Inch Half High Flexible Disk Drive : Models M16-A/M16-R" 1984

13 years, 8 months

8
9
0 0

ISO Advanced Digital S-100 Super Six EPROM

by aek＠bitsavers.org

I have recovered most of the Turbodos and CPM 3 files for the ADC Super Six On the CPM 3 disk were the sources for the boot EPROM, but there is an unreadable sector in the middle of it. Does anyone have this board? I bought one a while back, but it appears to have an OASIS boot rom on it. The files are up under http://bitsavers.org/bits/AdvancedDigitalCorp/super6_turbodos the zip file under /prom appears to be an OASIS disk image and eprom here is as much as I was able to recover --- title m'nprom Super Six Monitor Prom .z80 pbase: .phase 0f000h promsiz equ 800h sysbase equ 0000h zecho equ 0ee00h fdrdfg equ 0ee01h curadr equ 0ee02h hdflag equ 0ee04h hdsdhb equ 0ee05h stack equ 0ee64h page 60 ;ports sioad equ 00h sioac equ 01h siobd equ 02h siobc equ 03h fdce$ equ 0ch fdtrk equ 0dh fdsec equ 0eh fddat equ 0fh fddsd equ 14h baudrd equ 15 ++++++garbage for hd sdh reg LD (hdsdhb),A ; sector size 512, crc mode XOR A ;reset fpy read flag LD (fdrdfg),A LD SP,stac ++++++garbage getupc: IN A,(sioac) AND 1 ;char ready? JR Z,getupc ;no, loop gitupc: IN A,(sioad) AND 7fh ;mask CP 'a' ;lt 'a'? RET C ;yes, exit CP '{' ;lt '{'? RET NC ;yes, exit AND 5fh ;upcase RET gecho: LD A,0ffh LD (zecho),A CALL getupc PUSH AF LD A,(zecho) AND A JR NZ,xbarf POP AF RET xbarf: POP AF CP ' ' ;ctrl char? CALL NC,putc ;no, echo RET page strout: PUSH AF PUSH HL stroop: LD A,(HL) OR A ;end of string JR Z,strend ;yes, jump CALL putc INC HL JR stroop strend: POP HL POP AF RET crlf: PUSH HL LD HL,crlfst CALL strout POP HL RET abort?: CALL cetupc CP esc ;escape code? JP Z,exec ;yes, jump -- abort CP 8 ;??? RET NC JR abort? space: PUSH AF LD A,' ' JR hspit page hexit: PUSH AF RRCA RRCA RRCA RRCA CALL hex1 POP AF hex1: PUSH AF AND 0fh ADD A,90h DAA ADC A,40h DAA hspit: CALL putc POP AF RET hexhl: PUSH AF LD A,H CALL hexit LD A,L CALL hexit POP AF RET page getnum: CALL gecho CP ',' RET Z ;end of # CP ' ' RET Z ;end of # CP '0' RET C ;woops CP ':' JP C,isnum ;0 - 9 CP 'A' RET C ;woops CP 'G' CCF RET C ;woops SUB 007H ;convert A - F isnum: SUB 030H ;decode RET page get2n: PUSH BC PUSH DE LD C,0 LD E,0 nloop: CALL getnum ;number in? JR NC,nisnum ;yes, jump CP cr ;cr? SCF JR NZ,bad2n ;no, jump LD A,E OR A ;any input? JR NZ,got2n ;yes, jump SCF LD A,cr ;let's pretend it was a cr JR bad2n nisnum: CP 16 ;is it a number? JR NC,got2n ;no, jump INC E ;inc it LD B,A ;save # LD A,C ;get old ADD A,A ;x 2 ADD A,A ;x 4 ADD A,A ;x 8 ADD A,A ;x 16 ADD A,B ;add in new # LD C,A ; -- and all to c JP nloop got2n: LD A,C ;return in a bad2n: POP DE POP BC RET page get4n: PUSH DE LD HL,0 SCF CCF PUSH AF n4loop: CALL getnum JR NC,got4n CP cr JR NZ,bad4n CALL space JR good4n bad4n: POP AF SCF POP DE RET got4n: CP 16 JR NC,good4n ADD HL,HL ADD HL,HL ADD HL,HL ADD HL,HL LD E,A LD D,0 ADD HL,DE JR n4loop good4n: POP AF POP DE RET page tstmem: LD (HL),A CP (HL) RET Z PUSH HL LD HL,memerr CALL strout POP HL CALL hexhl JP exec page ;--------------------------------------- ; Load function -- Display & Substitute ;--------------------------------------- load: CALL get4n ;get the start adr JP NC,lodlop oops: LD HL,woops JP woopsy lodlop: LD (curadr),HL dot: CALL crlf ;display the current adr LD HL,(curadr) CALL hexhl CALL space LD A,(HL) CALL hexit CALL space CALL get2n ;get the response JP C,lodcmd CALL tstmem lodinc: LD HL,(curadr) ;inc the current adr INC HL JP lodlop lodcmd: CP cr ;cr terminates JP Z,exec CP ' ' ;space means inc JP Z,lodinc CP '-' ;dash means dec JP NZ,oops dash: LD HL,(curadr) ;dec the current adr DEC HL JP lodlop page ;----------- ; Negate DE ;----------- negde: PUSH AF LD A,D CPL LD D,A LD A,E CPL LD E,A INC DE POP AF RET page ;----------------------- ; Dump memory to screen ;----------------------- dump: CALL get4de CALL get4de CALL negde dloop: CALL crlf CALL hexhl CALL space dloop1: CALL space LD A,(HL) CALL hexit CALL inchlc CALL abortc CP 013H ;??? worthless CALL Z,abort? LD A,L AND 0fh JP Z,dloop JP dloop1 page ;------------------ ; Go to an address ;------------------ go: CALL get4de EX DE,HL JP (HL) ;----------------------- ; Display the help menu ;----------------------- help: LD HL,helpst CALL strout JP exec inchlc: PUSH HL ;cp hl to de -- abort if c, else inc hl ADD HL,DE JP C,exec POP HL INC HL RET page ;------------------- ; Move memory block ;------------------- move: CALL get4de PUSH DE CALL get4de CALL get4de EX DE,HL EX (SP),HL CALL negde mloop: LD A,(HL) EX (SP),HL CALL tstmem INC HL EX (SP),HL CALL inchlc CALL abortc JP mloop page ;------------- ; Fill memory ;------------- fill: CALL get4de CALL get4de CALL negde CALL get2n JP C,oops floop: CALL tstmem CALL inchlc JP floop get4de: CALL get4n JP C,oops EX DE,HL RET abortc: CALL cetupc ;abort on any char OR A JP NZ,exec RET ;--------------- ; In & Out port ;--------------- iport: CALL get2n JP C,oops LD C,A IN A,(C) CALL crlf CALL hexit JP exec oport: CALL get2n JP C,oops LD C,A CALL get2n JP C,oops OUT (C),A JP exec page ;---------------------------------- ; Boot -- floppy or hard disk exec ;---------------------------------- boot: CALL abortc CALL fddset CALL hdset fdlop: CALL abortc CALL fdrdy? ;ready to try a read? CALL NC,fdread ;yes, go try CALL hdread JR fdlop page ;------------- ; Floppy junk ;------------- fddset: XOR A OUT (fddsd),A ;8" sd CALL fdrdy? ;is the drive ready? JP C,try8dd ;no, jump LD HL,try8dd JR fdhome try8dd: LD A,8 ;8" dd OUT (fddsd),A CALL fdrdy? ;ready now? JP C,try5dd ;no, jump LD HL,try5dd JR fdhome try5dd: LD A,018H ;5.25' dd OUT (fddsd),A CALL fdrdy? ;ready now? RET C ;no, exit LD HL,fderrs fdhome: LD A,0fh ;restore command OUT (fdcmd),A CALL delay IN A,(fddsd) ;force wait for int IN A,(fdcmd) AND 018H ;seek or crc error? RET Z ;no, exit JP (HL) delay: LD A,3 delop: EX (SP),HL EX (SP),HL DEC A JR NZ,delop RET page ;------------- ; Ready check ;------------- fdrdy?: IN A,(fdcmd) RLA ;ready? RET C ;no, return LD HL,3E8H idxlop: IN A,(fdcmd) AND 2 ;index found? JR Z,idxfnd ;no, jump DEC HL LD A,L OR H ;timeout? JR NZ,idxlop ;no, jump SCF RET idxfnd: LD B,10 idxlp1: LD HL,3E80H idxlp2: IN A,(fdcmd) AND 2 ;index found? RET NZ ;yes, exit DEC HL LD A,L OR H ;timeout? JR NZ,idxlp2 ;no, loop DJNZ idxlp1 SCF RET page ;------------------ ; Floppy disk read ;------------------ fdread: LD A,0FFH ;indicate attempt to read LD (fdrdfg),A LD A,1 ;set sector 1 OUT (fdsec),A LD A,08CH ;read sector OUT (fdcmd),A LD HL,sysbase LD C,fddat fdrdlp: IN A,(fddsd) ;wait for data or int OR A ;data? JP P,fdrddn ;no, jump INI ;get a byte JP fdrdlp fdrddn: CALL delay IN A,(fdcmd) OR A ;errors? JP Z,sysbase ;no, jump to booted input fderrs: PUSH AF LD A,(fdrdfg) OR A ;have we tried to read? JR Z,getdsk ;no, jump fderr: LD HL,fderms ;floppy disk err msg out CALL strout POP AF CALL hexit JP exec getdsk: POP AF LD HL,dskask CALL strout LD A,0FFH ;reset floppy read flag LD (fdrdfg),A JP exec page ;------------------------ ; Hard disk test & setup ;------------------------ hdset: XOR A ;zap hd regs OUT (hdsec),A OUT (hdcylo),A OUT (hdcyhi),A INC A ;set for 1 sector OUT (hdscnt),A IN A,(hdsec) ;now, test for hdc1001 ctrlr LD B,A IN A,(hdcylo) OR B LD B,A IN A,(hdcyhi) OR B LD (hdflag),A ; -- and save result LD A,01EH ;do a restore OUT (hdcmd),A RET page ;---------------- ; Hard disk read ;---------------- hdread: LD A,(hdflag) OR A ;is a controller out there? RET NZ ;no, exit IN A,(hdcmd) AND 050H CP 050H ;ready & seek complete? RET NZ ;no, exit IN A,(hdcmd) OR A ;busy? RET M ;yes, exit hdrtry: LD A,(hdsdhb) ;set sdh OUT (hdsdh),A LD A,020H ;read sector cmd OUT (hdcmd),A hdbzlp: IN A,(hdcmd) OR A ;busy? JP M,hdbzlp ;yes, loop AND 1 ;error? JR NZ,hdbadx ;yes, jump LD HL,0 LD BC,8000h + hddat INIR JP sysbase page hdbadx: LD A,(hdsdhb) CP 20h ;sector size = 512? JP NZ,hderr ;no, go croak XOR A ;try 256 byte sector LD (hdsdhb),A LD A,1fh ;restore again OUT (hdcmd),A hdbzl1: IN A,(hdcmd) RL A ;busy? JR C,hdbzl1 ;yes, loop JR hdrtry hderr: LD HL,hdrms CALL strout IN A,(hderg) CALL hexit JP exec page signon: db cr,lf,' > ADVANCED DIGITAL CORP.' db cr,lf,' SUPER SIX Running',cr,lf,0 signom: db ' Monitor Version 3.4' db cr,lf,' June - 1983' db cr,lf,' Press "H" for help' db cr,lf,'Attempting to boot.......' db cr,lf,'Press any key to abort boot.',cr,lf,0 prompt: db cr,lf,' >',0 undef: db ' UNDEFINED',0 woops: db ' ????',0 memerr: db cr,cr,lf,'MEMORY WRITE ERROR AT ',0 ;??? db 'ERROR',0 db ' PAUSE',0 db '? ',0 db ' ABORTED',0 db 'STARTING ADDRESS:',0 db 'ENDING ADDRESS:',0 fderms: db cr,lf,'FDC COLD BOOT ERROR CODE ',0 dskask: db cr,lf,'INSERT DISK & PRESS B TO BOOT',0 hdrms: db cr,lf,'HDC1001 COLD BOOT ERROR CODE ',0 crlfst: db cr,lf,0 helpst: db cr,lf,'MONITOR COMMANDS :' db cr,lf,'B = Load disk boot loader' db cr,lf,'DSSSS,QQQQ = Dump memory in hex from S to Q' db cr,lf,'FSSSS,QQQQ,BB = Fill memory from S to Q with B' db cr,lf,'GAAAA = Go to address A' db cr,lf,'IPP = Input from port P' db cr,lf,'LAAAA = Load memory starting at A' db cr,lf,'MSSSS,QQQQ,DDDD = Move starting at S to Q to Addr. D' db cr,lf,'OPP,DD = Output data D to port P' db cr,lf,'ESC will terminate any command',0 page ;-------------------------- ; Function code jump table ;-------------------------- cmdtbl: db 'L' dw load db cr dw exec db '.' dw dot db '-' dw dash db 'D' dw dump db 'I' dw iport db 'O' dw oport db 'F' dw fill db 'G' dw go db 'M' dw move db 'H' dw help db 'B' dw boot db 0ffh .dephase ds promsiz-($-pbase),0ffh end

13 years, 8 months

1
1
0 0

Disk drive manuals

by feldman.r＠comcast.net

>From: Fred Cisin < cisin at xenosoft.com > > >VERY little interest in books. And these are some of the better ones. >WhatamI gonna do when I get down to the boxes of Sybex books and crappy >books on WordPerfect? I remember reading about a public project (NOT Google) that is attempting to preserve discarded books. I think they were located in Oregon, but I could easily be wrong about that. You send them the books and they ship them to China to be scanned. They get the books back and then store the physical copy in containers (with nitrogen instead of air?) in a mine or cave somewhere . Sorry that I don't have more specifics about them, but some Googling should turn them up. Bob

13 years, 8 months

3
2
0 0

Disk drive manuals

by jonas＠otter.se

On Thu, 8 Nov 2012 15:53:12 -0800 (PST), Fred Cisin <cisin at xenosoft.com> wrote: > VERY little interest in books. And these are some of the better ones. > WhatamI gonna do when I get down to the boxes of Sybex books and crappy > books on WordPerfect? > Boil them and serve them to your college administrators, saying it is Swedish lutefisk?

13 years, 8 months

1
0
0 0

WTB: turbochannel graphics cards, DEC 3000 AXP

by mark＠wickensonline.co.uk

Hi guys, Does anyone have any turbochannel graphics cards for the DEC 3000 AXP series? Ideally 24 bit, 8 bit would be fine, I need two or three. Regards, Mark.

13 years, 8 months

3
2
0 0

Remaining available S-100 board PCBs

by LYNCHAJ＠YAHOO.COM

Hi! There are four (4) S-100 SMB, eight (8) S-100 bus extenders, and two (2) S-100 8088 CPU board PCBs left. Here are the latest descriptions of these boards: http://s100computers.com/My%20System%20Pages/SMB%20Board/S100%20Bus%20SMB.ht m http://s100computers.com/My%20System%20Pages/Extender%20Board/Extender%20Boa rd.htm http://s100computers.com/My%20System%20Pages/8088%20Board/8088%20CPU%20Board .htm The PCBs are $20 each plus $3 shipping in the US and $6 elsewhere. The S-100 SMB is a dual PCB so it is $40. Please send a PayPal to LYNCHAJ at YAHOO.COM and I will send your boards right away! The S-100 SMB and S-100 bus extender boards are specialty items and it will be a long time before these are reordered. If you are considering getting one or more now is the time! I am stuck and need to move the remaining boards to free up the funds to do other board orders/reorders. Thanks and have a nice day! Andrew Lynch

13 years, 8 months

1
0
0 0

The New Apple II User's Guide

by alhartman＠yahoo.com

My computer's "On Switch" was my ex's "Off Switch." After 20 years of divorce she is now an E-Mail, and FB junkie and understands why I liked going on various BBS services in the late 80's. Al

13 years, 8 months

2
1
0 0

IRIX remote display

by saquinn624＠aol.com

Richard writes: >Do you mean the client is running on IRIX and the server is on anothermachine? Yes >I don't see any >reason why any X client on one machine wouldn'tdisplay properly on another machine, so long as >the X client wasn'tassuming the presence of extensions and was properly respecting theVisual >of the target display. I figured that as well, and I haven't had any problems with Solaris, HP-UX, AIX, etc. doing remote displays to a different "brand" X-server, nor have I had any problems with IRIX -> IRIX, but mix up IRIX and others and I have had trouble. Linux is probably the worst - X.org server. I'll log in just fine, be working fine, no artifacts, then boom X reset and I'm back at the XDM prompt. This works with different versions of Linux (mostly Debian), different graphics in the X-server machine (ATi (shudder) and nVidia), different net cables, different switches, different SGI boxes. Mac System 10.4 is missing parts - the first thing I noticed after login was that the toolchest was missing the text on about half of the selections. Going back and forth over it will cause some more to show up for a while. Solaris 10/ Xsun (FFB) had red rectangular artifacts. Only tried that one once. No one else has a problem with IRIX clients on other X-servers?

13 years, 8 months

3
3
0 0

COBOL manuals for Tops-10/TOPS-20???

by tshoppa＠wmata.com

> I need to deal with modifying some COBOL code in the Tops-10 and TOPS-20 > usage reporting software, and have no manuals. Yeah, COBOL is COBOL, but > the details (what is "DISPLAY-7" as opposed to "DISPLAY-9"?) are important. > There are no COBOL manuals on the PDP10 portion of Bitsavers at the moment. I wanted to post earlier but was afraid my decades old human memory had some bit rot! And I never did much COBOL to begin with. DISPLAY-6 is SIXBIT DISPLAY-7 is ASCII DISPLAY-9 is EBCDIC RECORDING MODE takes precedence over USAGE. Page 3-21 http://bitsavers.trailing-edge.com/pdf/dec/pdp10/TOPS10_softwareNotebooks/v…

13 years, 8 months

1
0
0 0

Warehouse sale, Kerrville, Texas, December 1 (?)

by mtapley＠swri.edu

All, A decade or so back I visited a warehouse in Kerrville with a *lot* of classic computer gear. That warehouse is now closing, and Cindy, the proprietor, is selling off the collection. Her description of what is there includes: At 9:15 -0600 11/6/12, Cindy Croxton Electronics Plus wrote: >I would like to arrange that on Saturday a group of interested people could >come up and go through all the antique stuff. There is Kaypro, HP, Apple, >Commodore, Radio Shack, DEC Rainbow, etc. I will have space available that >everyone can plug in what they want to, and test it before they leave with >it. I have a limited amt of software that can be used on each type of >machine. > >Also cases and cases of software and documentation for System 370, old IBM. ... >The Apple stuff alone occupies a room upstairs abt 10x10x6 feet stuffed full >of old computers, monitors, printers, software, disk and floppy drives, etc. >I have every Apple on the Wikipedia except the Apple I. I even have a Lisa! >Mac classic, all-in-ones, 128, 512, LCII, LCIII, and lots of others, >including old Mac servers. Prob have extra memory if needed, and lots of >spare parts for the Apple IIs. > >Also have IBM Microchannel machines and lots of spares. On the phone with me this morning, she added that there are waist-high Data General servers with 4 Pentium Pro's each, a lot of Sun equipment, IBM 5160's including one in the original box with matching printers and monitors, Apple posters and sales equipment >from the Apple II era and forward, and much Apple software and boxes. Contact information and location are: Cindy Croxton Electronics Plus 1613 Water Street Kerrville, TX 78028 (830)792-3400 phone (830)792-3404 fax AOL IM elcpls the email address sales at elecplus.com also works. There is a website at http://www.elecshopper.com/ , but that website is not by any means complete in its coverage of what is there nor does it give an indication of the scale of the place. Cindy indicated that she would like to set up a classic-computer shopper's day on a Saturday, when the shop is not open to the general public. I'll recommend we coordinate on December 1, but she said she could meet by appointment at the warehouse on a different Saturday if needed, except that November 17 won't work. She said she had 10 workbenches with power, and was amenable to having people bring in diagnostic software to test equipment before they buy it. There is no loading dock, so if you acquire a Data General server or the like you'll have to figure out how to get it up into your pickup truck. She prefers cash or check. I still have a pile of pictures I took there which also don't give a true indication of the scale of the place, but will forward on request and they do show a lot of gear. I'm planning to make the December 1 trip, I think; hopefully I'll see you there. No connection except as a satisfied customer; questions welcome on-list or off, but I recommend on. -- - Mark 210-379-4635 ----------------------------------------------------------------------- Large Asteroids headed toward planets inhabited by beings that don't have technology adequate to stop them: Think of it as Evolution in Fast-Forward.

13 years, 8 months

13
26
0 0

An ACI-90 / WD900 joins the stable.

by jdr_use＠bluewin.ch

Never believed I would be able to get one, but an ACI-90 has joined my small collection. For those who don't know it, is is a box with 2 8" floppies , power supply and a WD-900 Pascal Microengine board. No disk or manuals sadly. It should feel right at home next to the Lilith.. The WD-9000 chipset contains these : CP2151-B, CP2161B-02, CP2171-B10, CP2171-B12 and CP2171A-13, I understand different combinations are around. Bad side is of course that I have now reserved all free time for the next months : finding/creating boot disks, tracing schematic, reading ROMS and creating the emulator... Jos

13 years, 8 months

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COBOL manuals for Tops-10/TOPS-20???

by RichA＠vulcan.com

I need to deal with modifying some COBOL code in the Tops-10 and TOPS-20 usage reporting software, and have no manuals. Yeah, COBOL is COBOL, but the details (what is "DISPLAY-7" as opposed to "DISPLAY-9"?) are important. There are no COBOL manuals on the PDP10 portion of Bitsavers at the moment. Thanks, Rich Rich Alderson Vintage Computing Sr. Systems Engineer Vulcan, Inc. 505 5th Avenue S, Suite 900 Seattle, WA 98104 mailto:RichA at vulcan.com mailto:RichA at LivingComputerMuseum.org (206) 342-2239 (206) 465-2916 cell http://www.LivingComputerMuseum.org/

13 years, 8 months

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Apple IIc?

by barythrin＠gmail.com

Sorta clich? response but check your local craigslist. They're really not too uncommon and shouldn't run you too much. IIc may be a bit less common than its big brother but still not at all rare or out of reach.

13 years, 8 months

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Warehouse sale, Kerrville, Texas, December 1 (?)

by mtapley＠swri.edu

All, in response to a couple of requests, I have posted the photos I took in 2001; see the URL below, and let me know if it doesn't work. Please be aware that these are more than a decade out of date; it may be that none of the pictured equipment is still available, or most of it may be there; I don't know. Also, please be aware that this is just me posting; Electronics Plus hasn't endorsed or requested this, and I'll remove it immediately if they so desire. >Reply-To: Mark Tapley <mtapley at swri.edu> >Date: Wed, 7 Nov 2012 15:37:20 +0000 >Subject: Mark Tapley shared an album with you. > >You are invited to view Mark Tapley's photo album: ><https://picasaweb.google.com/lh/sredir?uname=103229486827589783951&target=A…>Electronics >Plus, March 2001 ><https://picasaweb.google.com/lh/sredir?uname=103229486827589783951&target=A…> >Electronics Plus, March 2001 >Kerrville, Texas, Electronics Plus - posted >Nov 7, 2012 >by Mark Tapley >Photos from the turn of the centurly in Kerrville ><https://picasaweb.google.com/lh/sredir?uname=103229486827589783951&target=A…>View >Album ><https://picasaweb.google.com/lh/sredir?uname=103229486827589783951&target=A…>Play >slideshow > -- - Mark 210-379-4635 ----------------------------------------------------------------------- Large Asteroids headed toward planets inhabited by beings that don't have technology adequate to stop them: Think of it as Evolution in Fast-Forward.

13 years, 8 months

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