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101090 discussions

Reference for IBM PC/AT Prototype Adapter (16bit version)

by djenner＠earthlink.net

Does anyone have the technical reference for the 16-bit version of the PC/AT prototype adapter, part 6450220? Or a pointer to it online? Thanks, Dave -- David C. Jenner djenner(a)earthlink.net

22 years, 11 months

5.25" SMD drives

by erd_6502＠yahoo.com

Oops... wrong key... I have an SC21 on the way (as I mentioned elsewhere). I have some 10" and 14" SMD drives I could steal from an SI9900, but I'd like to find some lower-power drives to play with - I'm thinking 2BSD on a Unibus PDP-11, so anything from a couple-hundred megs and up would be great. Are there any non-SMD-E drives in the the 5.25" size? Would anyone know where I could pick up a couple? I remember there were SMD drives up to 600MB in that size, but I don't have part numbers and I don't remember the exact interface type (I just remember the ads on Usenet where the seller was warning people that these 600MB-for-$600 drives would *not* work on your PC). Thanks for any help locating some smallish SMD hardware, -ethan

22 years, 11 months

Compaq prolient 1500 dual cpu card

by geoffr＠zipcon.net

I didn't know that any of hte 75's or 90's had the FDIV bug... learn something new everyday At 03:05 PM 6/24/03 -0700, you wrote: > >>Now that's reminded me: has anybody kept any Pentiums with the divide > >>>bug? Weren't they Pentium-90s? > > > > nope, P-60's >I have personally seen a P-90 with the FDIV bug so... > > >To Sleep, Perchance to Dream. For in that sleep of death what dreams may >come when we shuffle off this mortal coil must give us pause

22 years, 11 months

Picked up 3 EPROM programmers - Plus some other goodies

by jrkeys＠concentric.net

Got lucky today and picked the following items: BYTEK Multitrk-2000 Universal EPROM programmer with 3.5 FD in the side with the software diskette in it. BYTEK 135 Multiprogrammer BYTEK MPM-1 Four Microvision games in the boxes with manuals; Connect Four, Mindbuster, Star Trek - Phaser Strike, and Bowling NEC Pinwriter P3300

22 years, 11 months

Realistic MPA-35 owners manual

by kromemail＠shaw.ca

Hi Chris, If you still have an owner's manual for the Realistic MPA-35 I would sure appreciate a copy. Thank you. T. Moore

22 years, 11 months

TU20 on PDP-9

by aek＠spies.com

interesting.. HP 2020's are 7 tracks.. Could you take a look at the head stack? Looks like all they used was the mechanical transport.

22 years, 11 months

Openvms Alpha 3.0 kits now available

by stuart＠stuartsjohnsonfamily.net

For those looking for up-to-date VMS media for you Classic (or other) Alpha's, I just noticed that Montgar has the OpenVMS Alpha 3.0 kits available. Finally! For reference, the URL is: http://www.montagar.com/hobbyist/mount.html Stuart Johnson

22 years, 11 months

Trying to help a new VAX-11/750 owner

by erd_6502＠yahoo.com

A friend of mine at work got the 11/750 recently offered for free in Pittsburg. I don't yet know how it's loaded except for the L0022 mem controller and 14MB of RAM. My friend would _like_ to get a CI750 for it, since he already has an HSJ40 at home. Barring that, he's considering the $$$ for a Unibus SCSI controller. Besides the actual L0009 card, I'm reading that there appears to be an external enclosure to house part of the CI750. My 750s were always a local-disk affairs (UDA50/SI9900/etc). I have no experience with CI hardware and don't know what advice to give him. Can anyone here describe what you need to pull this all together (he already has an SC008 and cables). I'll try to get him on the list... he currently has about a dozen Alpha Servers and is in the process of working backward in time in the DEC world. -ethan

22 years, 11 months

Systems Industries CS-1?

by erd_6502＠yahoo.com

I have this dual-height Qbus card that I was told was a SCSI card (got it from a former boss). It has a 50-pin connector and gives the appearance of being a SCSI card, but I can't find any docs on it online. The logo reminds me of Systems Industries', and the model number appears to be "CS-1". I checked with Al's site and there's no SI docs there at all. There's a good chance that this is a TMSCP device, not an MSCP device, but I don't know that for sure. Is this board familar to anyone? -ethan

22 years, 11 months

Fwd: Monrobot XI details

by dbetz＠xlisper.mv.com

Here is the latest information on the Monrobot XI computers that have become available in Virginia. I'm afraid that while I am quite interested in these, I will probably be unable to acquire one. It seems they are interested in selling them rather than giving them away to good homes. Any reasonable sale price in addition to the considerable cost of shipping a 500 pound machine will probably put them out of my price range. I'm hoping that some public computer collection will acquire at least one of these and make it available for viewing. I would be happy to help in the rescue if anyone here decides to buy one. I would even consider contributing to the purchase and transportation of a machine if it ends up in a publicly accessible museum or collection. Begin forwarded message: > From: FThomas470(a)aol.com > Date: Mon Jun 23, 2003 9:41:17 AM US/Eastern > To: dbetz(a)xlisper.mv.com > Subject: Monrobot XI details > > This is in response to the great interest we've received regarding the > Monorobt XI computers that we have and for which we would like to > find a good home > . > > For disposal, currently we have 6 complete computers plus 1 that has > been > partly cannabilized for parts. > > Each unit consists of a main processing unit which is about the size > of an > office desk and weighs about 500 lbs. It contains all of the > electronics and the > memory drum which has 1000 bytes of 32 bits each. It has 3 input and 3 > output > ports. The circuitry consists of about a hundred unpluggable pc boards > containing readily available discrete components, primarily ordinary > transistors of > several types. > > On the top of the unit is the control panel or console. It has 8 > lighted > push-buttons, switches, and indicator lights. > > A side desk or return can be attached to main unit in several ways. It > holds > the I/O typerwriter and contains a Friden paper tape punch unit and a > tape > reader in slide-out drawers. > > Four units have the original I/O typewriter, which is the IBM model A > with > a Soroban translating mechanism added to it's bottom. It plugged > directly into > the main processor. > > The other I/O typewriters are IBM Selectrics and have an interface > unit. > These don't use the standard ASCII code but use IBM's Manifest > character set. It's > caps only and was designed for use with forms and invoices. Otherwise, > the > Selectrics are standard in every way. > > In addition, we have three Monroe magnetic card readers for the above. > These > used magnetic cards the size of the standard IBM punched card and had > 96 > addressable 32 bit registers. > > The most important fact is that we have a complete set of manuals for > the > above. There are detailed technical manuals on the design and > operation of these > units and the various components, as well as service and repair > information. > We also have manuals for many diagnostic and utility programs as well > as > customer installation manuals. We have instruction and program manuals > for various > applications, such as general accounting, various business programs, > Fortran > and a programming language with compiler. > > The above printed matter consists of roughly 2000 sheets (1000 > double-side) > in loose-leaf form. We have estimates for making copies that vary from > 4 to 6 > cents per side, which would be about $100 per set. > > All of the above units were in working condition when they were stored > away > about 14 years ago and none seem to have been damaged in the interim. > However, > in most units, the slides for the tape punches and readers have been > removed > at some time in the past. These are standard hardware and should be > easy to > replace. > > We have not turned any of them on because the bearings of the high > speed > magnetic drum are delicate. If the lubrication used is solidified or > oxidized in > any way, the bearings could easily be damaged, which could be a > problem. > Before use, they should be cleaned and reoiled with very high quality > oil, which is > not difficult to do. The original specs called for synthetic (or real) > porpoise oil, whatever that is. > > We are offering them for sale and would like to know what the > interested > parties feel they would be worth. We don't wish to start a bidding war > of any > kind, but want only to establish a price for these remarkable, > historic machines > that would fair and reasonable to all. > > Finally, these units are being offered AS IS, and whoever wishes to > have one > or more of them will have to be responsible for the shipping, which we > would > help arrange. > > If you are interested or wish to have more information, please email > us at > thomasduplex(a)aol.com.

22 years, 12 months

National Instruments Cards available

by anheier＠owt.com

I have a bunch of older National Instrument data acquisition cards available. Best offer or trade for older CPU processors. NB-GPIB, macintosh Nubus GPIB card AT-AO-6/10, ISA bus analog output card PC-TIO-10, ISA bus timer/counter card. I have manuals, cables, and signal breakouts for some of these. thanks Norm

22 years, 12 months

Tek 1230

by classiccmp＠vintage-computer.com

> Hi, > > I came across your 8008/8080 web page while searching for ... I've noticed a fair number of these types of posts lately. Basically it comes down to the address munging that's being done to prevent spammers from harvesting is also preventing legitimate browsers from identifying the authors of messages individually. I'm not sure if anyone wants this fixed, but couldn't we perform some form of reversible modification to the email address? Perhaps turning cctalk(a)classiccmp.org into cctalk2003ATclassiccmpDOTorg would fool the harvesters and allow people to reply to an individual. Just a thought, Erik Klein www.vintage-computer.com/vcforum The Vintage Computer Forum

22 years, 12 months

Reading various format 5.25" floppies on a PC

by julesrichardsonuk＠yahoo.co.uk

OK, apologies first as this has been done to death at various times in the past, and now I come to need the info I haven't got the willpower to piece it together from archives of several thousand posts :-) I'm trying to organise and back up all my data (primarily on my main PC system) - but I'd also like to make images of the disks for some of my classic platforms whilst I'm at it. I don't have any kind of fancy floppy controller, just whatever comes in a standard PC (I do have PCs running Windows 2000, Windows ME, Windows NT, Linux and DOS so I'm not too fussy about OS choice) I have various 5.25" floppy drives lying around, although I *assume* the 1.2MB drive will electrically read all of my 5.25" disks (whether the controller can understand the raw data coming off the disks is another matter of course) I've got disks for the following machines which I'd like to initially back up: Acorn BBC / BBC Master / Cambridge Workstation (I believe these are all the same low-level format even if filesystem structure is different) DEC Rainbow (B model, if there's a difference between that and the A) Apple (Apple ][, //e and /// - again I believe low-level structure is the same for all 3?) So, in an ideal world, what I'd like to be able to do is use some piece of software on the PC and suck an entire image off each disk, archive it onto tape / CD / whatever, then at some point in the future be able to use the same software on a PC to rebuild from those disk images such that they'll work in the machine they were intended to. I'm not even going to think about the Amiga and Mac 3.5" disks for now; I know the PC controller won't handle those - and all the stuff on cassette tape can wait too! :-) (the couple of Macs I do have might be a better bet for this job, but unfortunately none of them are networked and so I couldn't get the data off them to a place where I can store it easily) cheers Jules ________________________________________________________________________ Want to chat instantly with your online friends? Get the FREE Yahoo! Messenger http://uk.messenger.yahoo.com/

22 years, 12 months

Seeking a Cromemco C-10

by kurtk7＠visi.com

I have been looking for a C-10 for some time but lost out in a recent auction. My bad luck, so I doesn't suppose anyone might know where I can find another C- 10. I know its a long shot but I thought I would ask. Any suggestions would be greatly appreciated. Thanks, Kurt

22 years, 12 months

webby list archive administrivia (was Re: Tek 1230)

by fmc＠reanimators.org

"Erik Klein" <classiccmp(a)vintage-computer.com> wrote: > > Hi, > > > > I came across your 8008/8080 web page while searching for ... > > I've noticed a fair number of these types of posts lately. Basically > it comes down to the address munging that's being done to prevent > spammers from harvesting is also preventing legitimate browsers from > identifying the authors of messages individually. No, they can identify the author by name. What it really comes down to is that the address munging provides a mailto: link which makes it easy for folks who find the archive pages to generate an e-mail message to the list (which is OK), and that these folks don't realize that they're about to post to a mailing list and that providing some context would be a good thing. If they realized that, they could perhaps write "w/r/t foo's message to this list on date mm/dd/yy on the matter of bar" or even copy and paste some of the webby archive page into the message. What might be helpful would be for the webby archive pages to not have that link right next to the poster's name, but instead to have a "post a follow-up to this message" link somewhere on the page. I have no idea how to do this using pipermail though. -Frank McConnell

22 years, 12 months

Tek 1230

by pete＠dunnington.u-net.com

On Jun 23, 14:43, Erik Klein wrote: > I've noticed a fair number of these types of posts lately. Basically > it comes down to the address munging that's being done to prevent > spammers from harvesting is also preventing legitimate browsers from > identifying the authors of messages individually. > > I'm not sure if anyone wants this fixed, but couldn't we perform some > form of reversible modification to the email address? Perhaps turning > cctalk(a)classiccmp.org into cctalk2003ATclassiccmpDOTorg would fool the > harvesters and allow people to reply to an individual. I'd like to see it fixed. I've had occasional useful contacts from people who've seen my address in the archive, and I'd rather see it munged in some human-reversible way than simply replaced with the mailing list address. -- Pete Peter Turnbull Network Manager University of York

22 years, 12 months

Tek 1230

by dan.fellman＠lmco.com

Hi, I came across your 8008/8080 web page while searching for info on old Tektronix logic analyzers. I recently bought a model 1220 analyzer on eBay which is very similar to the 1230 you describe. It didn't come with pods or probes, but I thought I might be able to improvise something. After some study of the front panel connector with an ohmmeter and voltmeter, I believe I've identified the data lines, power and ground, and some other inputs that must be used for clocks and control signals, but the analyzer doesn't respond to any of the signals I feed in. It seems to have some mechanism for recognizing that a compatible Tek pod is attached. The input channels just show up as "unused" when I attempt to acquire data. I suppose it could be some setup step I'm missing, but I don't see anything on the various menus that looks like a pod enable. I'd appreciate any insight you can give me into this problem. Also, are you aware of other pods that go with these units besides the P6444's? Thanks, Dan

22 years, 12 months

Looking for Burroughs B20/BTOS software/hardware/docs

by alanp＠snowmoose.com

I am getting a gaggle of Burroughs B20/BTOS machines through eBay. I developed software on them for Burroughs back in the late 80s. Didn't really care for the machines at the time, but I thought the expansion capability by adding "slices" was pretty neat. Does anyone have any B20 "slices" or any BTOS/CTOS software or documentation that they want to sell? alan BTW, long ago I promised to scan in some of my VAX documentation, but life keeps getting in the way. I hope to get that stuff done in August now.

22 years, 12 months

TU20 on PDP-9

by m_thompson＠ids.net

I put some pictures of the TU20 tape drive for the PDP-9 at: http://ricm.museum.com/collections/pdp-9/pdp-9.html I was a little surprised to see the HP label on the transport. Michael Thompson E-Mail: M_Thompson(a)IDS.net

22 years, 12 months

B&C Microsystems UP200

by elwood＠sprhill.net

Dear sir, I saw your post about software for the UP200 and UP600 I need this software. Thanks, DR

22 years, 12 months

Making holes in magnetic tape

by dwightk.elvey＠amd.com

Hi John Although it is a serious issue if the tape is folded where the signals are, where the holes are isn't. Just fold the tape in two diagonal directions and cut it with sizzors. The hole will be a square but the computer doesn't care. You'll need to erase the tape and reformat. Dwight >From: John <john_a_s2003(a)hotmail.com> > >Hi, > >I have some DC100A type cartridges for my HP-85, but at the start of the >tape the magnetic coating has come away where the drive belt has been left >in contact with the same part of the tape for too long. > >I have figured out the pattern of holes in the end of the tape used by the >optical sensor to detect EOT. I would like to punch a new set of holes away >from the damaged area and see if the rest of the tape is usable. > >So any tips please on making suitable holes in the tape, my attempts so far >with a pin have not been a great success..... > >Thanks, >John

22 years, 12 months

VAX DSSI dyssentary?

by allain＠panix.com

I have a 'new' microVAX 4000-200 here that has a few small oddities with it, and I could use some advice. Number one is that it will not boot. I tried 'b dia0' and 'b/r5:e0000001 dia0' and both times it's nothing until timeout. Number two is that 'show dssi' and 'sho dev' show no disks, nor the TF85. After some initial confusion where one or more disks were tried uncabled before powerup, the DSSI terminator was discovered missing, so I used one from another machine. My questions are, are there other tests for a disk besides booting it, and, what could be wrong with the DSSI bus? I tried other DSSI ID's on the disks but no real change. Do the ID's have to start with 0? A tidbit with the terminator off was that the countdown tests went from 95.. to 60.. and then autobooted immediately back to 95 without continuing down. I could have sworn at the time that 'sho dssi' worked then. Probably unreleted but FYI. TIA John A.

22 years, 12 months

Siemens System 4004 on Willy Wonka

by vcf＠siconic.com

I was channel flipping and came across a movie on The Disney Channel where a guy was standing in front of the front panel of a computer with tape drives spinning in the background. He was doing some demonstration for three men, pushing buttons and flipping switches on the front panel and then the computer was spitting out results on punch card from the front (this part was fake). At first I thought it was a recent film. I thought the tape drives looked very authentic, because their movement was very real. Then I looked at the front panel and saw "Siemens System 4004", and was quite surprised. It turns out the movie is "Willy Wonka and the Chocolate Factory". The last time I saw this was probably 15 years ago. The Siemens System 4004 is very interesting in this context. According to Hans, it is the first fully transistorized digital computer, beating out even the MIT TX-0. The Austrian Mail?fterl also vies for the title, but Hans Franke claims it wasn't fully completed or something: http://www.museumonline.at/2000/wien-feuerbach/mailueft/mailueft_de.htm http://www.heise.de/tp/deutsch/inhalt/co/5163/1.html A quick Google search turned up a computer that I was not previously aware of: http://www.pbs.org/transistor/background1/events/sscomputer.html This is the TRADIC (TRAnsistorized DIgital Computer) built by Bell Labs. If the year is correct, I believe this is a contender for the title. This site says 1955: http://www.cedmagic.com/history/tradic-transistorized.html Here's a couple pages on the Siemens 4004: http://www.wolfgangtroeger.de/museum.htm http://www.computermuseum-muenchen.de/computer/siemens/ Pretty cool stuff. Is anyone still keeping track of these vintage computer movie appearances? This one is pretty significant ;) -- Sellam Ismail Vintage Computer Festival ------------------------------------------------------------------------------ International Man of Intrigue and Danger http://www.vintage.org * Old computing resources for business and academia at www.VintageTech.com *

22 years, 12 months

http://www.decdocs.org

by jhfinexgs2＠compsys.to

I just attempted to check this address: http://www.decdocs.org/ =============================================== This domain has expired It will be deleted in the next few days. If you are the owner of this domain, you still have a chance to renew it. Domain Name Expires decdocs.org 19-JUN-03 You can renew all or part of the listed domains immediately; we recommend doing this, in case we don't have your credit card on file. Domains renewed manually will not be auto-renewed. If you own this domain, you can also log in to your account by clicking this button. =============================================== Anyone interested? Sincerely yours, Jerome Fine -- If you attempted to send a reply and the original e-mail address has been discontinued due a high volume of junk e-mail, then the semi-permanent e-mail address can be obtained by replacing the four characters preceding the 'at' with the four digits of the current year.

22 years, 12 months

Computerized Music Gear On eBay

by mail.list＠analog-and-digital-solutions.com

I remember someone was interested in music gear. Don't know if you'd consider this worth the asking price or not, but it looks like a nice set. http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=2539449598&category=38071

22 years, 12 months

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