test-drb April 2001

test-drb@ccmp.vtda.org

251 participants
669 discussions

by chomko＠greenbelt.com

Pulled off alt.foklore.computers: Interdata History - From: Will Jennings <XDS_Sigma7(a)hotmail.com> Fri Jun 9 14:42:19 2000 <quote on> Subject: Interdata, Perkin-Elmer, et al. OK, a brief history of Interdata, etc.; Interdata was founded in about 1967 in Oceanport, NJ, and the majority of the funding was put up by the local jockey club because they wanted to grow Oceanport into a more high-tech area. This would later cause them some problems, i.e. I heard a story about how AT&T was going to buy a large quantity of Interdata machines, then looked into the background of the company, saw that the Oceanport Jockey Club was the main stockholder, and cancelled the deal. Afterwards, they redistributed the stock so that say John Doe was a stockholder, and he just *happened* to belong to the jockey club (told to me by a former Interdata employee). Anyway, the Interdata machines use the IBM S/360 instruction set, and most programs written in S/360 assembler will run unmodified on an Interdata, provided that they don't use floating point (S/360 floating point is ODD!), and are not dependent on a certain IBM device being present, i.e. a program that had routines specifically for use with a 7320 in it would not work. The assembler is even called CAL (Common Assembly Language) whereas the S/360 assembler is called BAL (Basic Assembly Language). Interdata also used the weird IBm terms, i.e. SELCH, MUX, IPL, MTM, etc. In fact, on the later machines, the racks are even IBM blue. I could talk about all the Interdata models but I don't want to flood the list, so I'll keep it to their most significant model, the 7/32. The 7/32 was the world's first 32-bit minicomputer, introduced in 1973. The 7/32 is also significant in that it has a cycle of either 750 or 1000ns, depending on the core, and it can have up to one megabyte of memory. Not to mention the fact that it has a full display panel, which is even more impressive with the hexidecimal option. Anyway, Perkin-Elmer bought Interdata in about 1975, and continued to market and develop the products but with the P-E name on them. The first machine that P-E sold without it being a rebadged Interdata was the 3220 (1978), which looks a lot like the 30xx series of machines from IBM. The 3200 series machines are backward compatible with the two Interdata 32 bit machines, the 7/32 and 8/32. In 1979, P-E released the 3210, which is twice as fast as a VAX 11/780, and it fits in a normal size rack instead of a massive unwieldy thing. In 1985, P-E spun off the computer division as Concurrent Computer Corporation, who is still in business (http://www.ccur.com). Concurrent also bought Masscomp in about 1989 or so, and still makes machines based around Masscomp's RTU operating system. All of the Interdata/P- E/Concurrent hardware is specifically designed for real-time applications, and as such, is less well-known then companies like DEC who made general-purpose machines. If anyone is interested, I'll make an Interdate/P-E/Concurrent web page. I personally own 2 Interdata 7/32's, 2 P-E 3203's, a P-E 3205, and 3 P-E 3210's. I wouldn't mind more either... or a Masscomp.. heh Will J (From: Will Jennings <XDS_Sigma7(a)hotmail.com>) <quote off>

24 years, 7 months

SC/MP Elektor Emulator

by Robert_Feldman＠jdedwards.com

http://www.elektor-electronics.co.uk/ -----Original Message----- From: Sipke de Wal [mailto:sipke@wxs.nl] Sent: Tuesday, April 17, 2001 4:14 PM To: classiccmp(a)classiccmp.org Subject: Re: SC/MP Elektor Emulator <snip> By the way ....... I know the url of the dutch Elektor site: http://www.elektuur.nl (but don't know if they have versions of their site for other languages ) <snip>

24 years, 7 months

Kim / Commie keypads

by ajp166＠bellatlantic.net

It's in the RSU catalog. It's on the wall in nashua as part of a chassis box. I don't claim any genius but, it still amazes me that I can find something so trivial with zero effort. IF ALL ELSE FAILS TRY THE DIGIKEY OR NEWARK CATALOGS. Sure they are pricy but they do have it. Keypads are still used widely for many applications, where is the difficulty? Allison ------Original Message------ From: "Richard Erlacher" <edick(a)idcomm.com> To: classiccmp(a)classiccmp.org Sent: April 17, 2001 3:37:49 AM GMT Subject: Re: Kim / Commie keypads Well, talking to the folks at Radio Shack, visiting a store, and searching through their catalog (with the aid of the fellow at the store) didn't yield any keypad kits. The part number you posted doesn't fit a Radio Shack part number format according to the guy at RS. That's why I asked for the part number, because, though they have thousands of stores with many employees, they have, collectively, only two grey cells to rub together when it comes to finding something. That's as much as I'm going to do, since (a) I dislike going to Radio Shack (b) I don't have a KIM-1, nor am I likely to get one, and (3) I doubt that Radio Shack will EVER have a keypad that will even with extensive modification be suitable for this application, or, for that matter, anything else of any value, except by the wildest stroke of luck. Dick ----- Original Message ----- From: "ajp166" <ajp166(a)bellatlantic.net> To: <classiccmp(a)classiccmp.org> Sent: Monday, April 16, 2001 5:13 PM Subject: Re: Kim / Commie keypads > From: Richard Erlacher <edick(a)idcomm.com> > > > > >This RS pad must have a catalog number, though, Allison. Since you've > seen it, > >perhaps you could provide the catalog number, as the RS meatheads > wouldn't know > >what a keypad kit was if you asked them. > > > Well while picking up a barrel connector I noticed the Nashua store had > it on > the wall. I think 270-015 is the catalog number. Sheesh, if I do that > might > as well sent it to me for installation and labeling. Is it possible to > read a catalog > these days or has the "go ask the web, thin I don't have to work" > mentality > taken over? > > Allison > >

24 years, 8 months

Kim / Commie keypads

by ajp166＠bellatlantic.net

I didn't miss the point. Rather I choose to ignore the whining and moaning about something that is not rocket science. Given that basic box ( the key pad is removeable!) and a pair of shears I'd be running. Then again I'd be able to find a better match because I'd look rather than grousing about it. Sheesh! Allison ------Original Message------ From: "Richard Erlacher" <edick(a)idcomm.com> To: classiccmp(a)classiccmp.org Sent: April 17, 2001 2:54:34 PM GMT Subject: Re: Kim / Commie keypads You've missed the point, Allison ... There are dimensional requirements that have to be met if the keypad is to fit as a replacement for the KIM-1 keypad. It must physically fit, and it must have the same scanning matrix. Now, I haven't seen the chassis box to which you refer, but I'd bet that RS doesn't sell the keypad by itself, nor do I believe that the keypad is dimensionally suitable. If one is interested in an external keypad, there are LOTS of options, and there's certainly no need to consider the sort of rubbish sold at RS. Dick ----- Original Message ----- From: "ajp me" <ajp166(a)bellatlantic.net> To: <classiccmp(a)classiccmp.org> Sent: Tuesday, April 17, 2001 6:48 AM Subject: Re: Kim / Commie keypads > It's in the RSU catalog. > It's on the wall in nashua as part of a chassis box. > > I don't claim any genius but, it still amazes me that I can find something so trivial with zero effort. IF ALL ELSE FAILS TRY THE DIGIKEY OR NEWARK CATALOGS. Sure they are pricy but they do have it. Keypads are still used widely for many applications, > where is the difficulty? > > Allison > > > ------Original Message------ > From: "Richard Erlacher" <edick(a)idcomm.com> > To: classiccmp(a)classiccmp.org > Sent: April 17, 2001 3:37:49 AM GMT > Subject: Re: Kim / Commie keypads > > > Well, talking to the folks at Radio Shack, visiting a store, and searching > through their catalog (with the aid of the fellow at the store) didn't yield any > keypad kits. The part number you posted doesn't fit a Radio Shack part number > format according to the guy at RS. That's why I asked for the part number, > because, though they have thousands of stores with many employees, they have, > collectively, only two grey cells to rub together when it comes to finding > something. That's as much as I'm going to do, since (a) I dislike going to > Radio Shack (b) I don't have a KIM-1, nor am I likely to get one, and (3) I > doubt that Radio Shack will EVER have a keypad that will even with extensive > modification be suitable for this application, or, for that matter, anything > else of any value, except by the wildest stroke of luck. > > Dick > > ----- Original Message ----- > From: "ajp166" <ajp166(a)bellatlantic.net> > To: <classiccmp(a)classiccmp.org> > Sent: Monday, April 16, 2001 5:13 PM > Subject: Re: Kim / Commie keypads > > > > From: Richard Erlacher <edick(a)idcomm.com> > > > > > > > >This RS pad must have a catalog number, though, Allison. Since you've > > seen it, > > >perhaps you could provide the catalog number, as the RS meatheads > > wouldn't know > > >what a keypad kit was if you asked them. > > > > > > Well while picking up a barrel connector I noticed the Nashua store had > > it on > > the wall. I think 270-015 is the catalog number. Sheesh, if I do that > > might > > as well sent it to me for installation and labeling. Is it possible to > > read a catalog > > these days or has the "go ask the web, thin I don't have to work" > > mentality > > taken over? > > > > Allison > > > > > > >

24 years, 8 months

DEC support on Compaq

by rhblake＠bigfoot.com

This might interest some of you with DEC equipment, found by someone else on Compaq's site: http://www4.support.compaq.com/support/

24 years, 8 months

Dr. Dobb's from the '80's --- taken., Thanks.

by nerdware＠laidbak.com

Thanks for the replies. First one in got 'em. I have some other old stuff to clear out as I make room for the audio studio here in the basement....if it doesn't sell, I'll throw it up here. Have a bunch of Byte's going way back, plus several Kilobauds and some other stuff. Paul Braun WD9GCO Cygnus Productions nerdware_nospam(a)laidbak.com "A computer without a Microsoft operating system is like a dog without a bunch of bricks tied to its head."

24 years, 8 months

Micropolis drives (was: Micro-Expander disks

by fmc＠reanimators.org

"Fred Cisin (XenoSoft)" <cisin(a)xenosoft.com> wrote: > The early Micropoli that I'm familiar with do not look anything like a > Tandon. They are designed to operate horizontally, but will work on their > sides. The disk goes in through a slot, and then the entire mechanical > carriage is pushed down by pressing down on a small panel in/below the > middle of the slot. Pressing the same panel again permits the carriage > assembly to pop back up and partialy eject the diskette. The "Type I" was > 48tpi SS?, and the "Type II" was 100TPI. This drive is definitely different: it's more like the entire mechanical carriage is pushed down when the door is opened, and rises when the door is closed. Given the date I wonder whether it's a redesign to look like the drives on the IBM PC. Oh, and I was wrong about one thing: there is an optical emittor/sensor and a bit that interrupts it, but it's not directly attached to the door, and it interrupts when the door is open. > How about connecting it in place of a 720K (even on a PC configured for > 720K 3.5") and seeing whether the disks that it formats will interchange > with a Tandon TM100-4, Teac 55F, or Shugart/Matsushita/etc 465? There's a thought. I think I have a Morrow Micro Decision that's been fitted with a 96TPI 5.25" drive (along with a 720K 3.5" and two 48TPI 5.25" drives), I should try to dig that (and its software) out and see if I can exchange media between them. -Frank McConnell

24 years, 8 months

Tektronix 4105 terminal

by chomko＠greenbelt.com

It has a whole mess of EPROMs on the backside of the monitor part. I didn't look close enough to see what type of CPU it has. Anyone know anything about it? Eric

24 years, 8 months

PDP-8/i: SOLD!

by aw288＠osfn.org

The PDP-8/i has been spoken for. Thanks to all that asked. William Donzelli aw288(a)osfn.org

24 years, 8 months

Still looking for a couple of answers to questions for the Heath H-27 floppy controller

by ethan_dicks＠yahoo.com

OK... so I got this H-27 that locks up the Qbus when it is in the grant chain and works ok (except for interrupts) when it is past the end of the granted devices (one or more blank Qbus slots in-between). I've pulled and tested each and every TTL chip, but can't use the auto chip tester on the Nat'l Semi parts. My questions are this: What are the three jumpers for? (E-1 through E-3, between U11 and U12, and U7 and U8) What bus drivers/receivers directly interact with the interrupt grant chain? If I'm lucky, it's U11 and U7 - I have plenty of 8136 chips. What can I substitute for DS8837 and DS8839 chips, if one of them is at fault? __________________________________________________ Do You Yahoo!? Yahoo! Auctions - buy the things you want at great prices http://auctions.yahoo.com/

24 years, 8 months

Various manuals FS

by djg＠drs-esg.com

I was browsing through a local used book store and found some stuff other may want. These are the listed prices, shipping additional. I have not purchased them but can and ship them off if interest. In general if you have the equipment you get priority or wanting multiple, offering PDP-8 stuff, or offering more than list. Email me not list if interested. Heathkit Hero Jr Robot Model RT-1 1984 Technical Manual $2.95 Assembly Manual $2.95 Digital Technical Journal Aug 1985 VAX 8600 $3.50 Update notice TOPS-10 operating system commands manual Feb 84 (only update not entire manual) $5.50 IBM replaced maintenance parts returnable 1952 (parts list with prices for various equipment). Somewhat worn $7.50 And the following Control Data (CDC) manuals. All are in reasonable physical shape but heavily marked up. I'll be impressed if you have one of these. 3300 Traning Manual second edition 1968 Vol I $3.50 Vol II $5.50 Disk storage equipment traning manual 1969 (853 and 854 drive) $4.50 Visual displays traning manual 1967 (210,211,212,250,280) $3.50 915 page reader a programmed text 1967 Vol I $3.50 Vol II $5.50 3300 Data processor machine language coding form $2.50 Logic circuits experiments 1969 $3.50 Active networks experiments revised 1968 $3.50 Passive networks experiments revised $3.50 David Gesswein http://www.pdp8.net/ -- Run an old computer with blinkenlights

24 years, 8 months

50 pin SCSI to 50 pin centronics

by fmc＠reanimators.org

Fred Cisin <cisin(a)xenosoft.com> wrote: > > BTW, there IS a documented fatality from the frustrations of serial > > interfacing. "Lanny Cox" <chronic(a)nf.sympatico.ca> wrote: > I hope you're joking, but if not, how did this occur? Electrocution? High > blood pressure due to frustration? I'm envisioning the frustrated party applying the frustrating device as a blunt instrument upon its designer, but somehow I expect the truth is not so satisfying. -Frank McConnell

24 years, 8 months

unix for the Interdata model 70 ???

by xds_sigma7＠hotmail.com

Don't forget OS/16... I could get OS/16... Will J _________________________________________________________________ Get your FREE download of MSN Explorer at http://explorer.msn.com

24 years, 8 months

Micropolis drives (was: Micro-Expander disks

by fmc＠reanimators.org

"Fred Cisin (XenoSoft)" <cisin(a)xenosoft.com> wrote: > On 16 Apr 2001, Frank McConnell wrote: > > Hmm, here I sit looking at one of a pair of Micropolis model 1115-VI. > > It's a 5.25" full-height drive, serial 0372. Someone (not me) helpfully > > wrote on it with a marker: > They might be right. I had heard that Micropolis came out later with a > 96TPI, but I've never seen it. The date code and the double sided is > consistent with that. Is it really 2 sided? What kind of door assembly > does it have? Looking at it from the front, it looks like a typical full-height Tandon as seen in an IBM PC or Shugart drive. Flat door, closes down over center of slot. A printed-circuit board covers the top of the drive. I think there are two sets of head leads that disappear into the interior. The door, when closed, has a flange that pokes through a slot in the board to interrupt an optical emitter/sensor pair. What's funny is that the top hub appears to be fixed. The bottom hub is mounted to a sort of sub-frame that pretty much covers the bottom of the drive, and it pivots (drive shaft, drive motor and all) about the middle of the outer frame as you close the door. Of course, this makes looking into the interior of the drive more fun than usual, because it's completely surrounded by stuff. > But they might be mistaken, and have ASSUMED 96TPI due to it not being > 48TPI, and/or having about 80 tracks. I've even seen people label 720K > 5.25" drives as being 1/2M, "because it's NOT a 360K". Yep, that is what you got me thinking. -Frank McConnell

24 years, 8 months

Cheap MicroFiche scanner

by healyzh＠aracnet.com

Does anyone know anything about the "Image Mouse"? The price looks to start at $2500, and will scan a "page" in less than a second! It sound like it would be fairly easy to scan in a page or two of fiche when needed with one of these! Zane > >http://www.zytrondfw.com/imagemouse/imagemouse.html > > > >http://www.eyecom.com/MousePlus.html > > > >http://infographix.com/Microfilm_Scanner-image-mouse.htm > > > >http://www.librarystoreltd.com/imagemouse2.shtml > > > >http://www.microequip.com/newprod.htm

24 years, 8 months

SC/MP Elektor Emulator

by jos.mar＠bluewin.ch

-----Original Message----- From: Tony Duell <ard(a)p850ug1.demon.co.uk> To: classiccmp(a)classiccmp.org <classiccmp(a)classiccmp.org> Date: Tuesday, April 17, 2001 12:25 AM Subject: Re: SC/MP Elektor Emulator >> >> Sipke de Wal wrote: >> >> > The Dutch Elektuur magazine (Elektor) devoted a lot of space 24 years ago >> > to a build-it-yourself SC/MP system. The firstversion came with dip-switches to >> > toggle in binary data into 256bytes of RAM. >> >> Was in the german version of elektor too. >> scampi ;-) > >And in the UK version IIRC. The version I remember had a PCB with the >SC/MP (the origial PMOS version) and IIRC the crystal on it, linked by >ribbon cables (with individual socket contacts on each wire -- no IDC >connectors :-() to another board with the memory and DIP switches, etc on it. > But does anyone remembers the computer Elektuur published before that, in 1974 ? It was a TTL based computer with a choice of memory : extremly expensive 2102's or moderate priced CCD's (bit bucket's) that offered serial access only ( i.e. a solidstate "magnetic drum") I really would like to see the articles again, but am unable to get my hands on such old issues of Elektuur. Jos Dreesen

24 years, 8 months

SC/MP Elektor Emulator

by sipke＠wxs.nl

Hi Folks I'ts been a productive Easter ........ Hope you had a nice couple of days also 25 years ago National Semiconductor introduced the SC/MP microprocessor Today I finished the alpha release of an Emulator for the SC/MP. It is written in Visual Basic 6.0 and the sources are included also. Docs and background are also info aviable. The Dutch Elektuur magazine (Elektor) devoted a lot of space 24 years ago to a build-it-yourself SC/MP system. The firstversion came with dip-switches to toggle in binary data into 256bytes of RAM. Fiddeling with a few other switches would lead to running programs and getting output via 8 LEDs. This system is what the emulator emulates. Kinda Altair but with a very simple CPU. I've also dedicated part of my website to this program and will eventually add more SCMP-stuff. You can read about and fetch the proggy at: http://xgistor.ath.cx Go => Vintage Computers => SC/MP Elektor Emulator --------------------------------------------------------------------- Sipke de Wal

24 years, 8 months

Micropolis drives (was: Micro-Expander disks

by fmc＠reanimators.org

"Fred Cisin (XenoSoft)" <cisin(a)xenosoft.com> wrote: > Micropolis had 2 major models of their 5.25" drive. One was 48TPI, with > 35 tracks (maybe 40), and was essentially interchangeable with the Shugart > SA400. It was fairly slow stepping, since it used a helical lead screw. > But it was a nice drive for TRS-80. > > The other was 100 TPI, with 77 tracks, not to be confused with the far > more common 96TPi 80 track drives. There is a somewhat rare Tandon > TM100-4M drive that can be used as a substitute for the Micropolis. > (Some think that the 'M' stands for Micropolis as replacing the Micropolis > 100TPI is its only use.) Hmm, here I sit looking at one of a pair of Micropolis model 1115-VI. It's a 5.25" full-height drive, serial 0372. Someone (not me) helpfully wrote on it with a marker: 96 TPI 2 SIDED 5 1/4 Date codes on the ICs would seem to place its manufacture sometime in early-mid 1983. Was the someone with the marker perhaps mistaken? Hard to tell from http://www.mfarris.com/know/floppy/floppy2.html -- that doesn't seem to get any more specific than "SD"/"DD"/"QD"/"HD". -Frank McConnell

24 years, 8 months

Looking for Dongleville

by mikeford＠socal.rr.com

Anybody live in Dongleville? (the place where all missing PCMCIA dongles disappear to) Sitting on my desk I have 3 PCMCIA cards I recently purchased that are missing dongles/orphans; Noteworthy SCSI II adapter, NWSCSI01 3Com EtherLink 10bt, 3C589D Xircom Netwave Adapter, CNW The Xircom doesn't need a dongle, it needs a friend, ie another card or a base station thing. Xircom sold to Baytech, which passed it on to Nortel, but some old drivers are out there on ftp. I am looking to buy/trade for another card/base, or sell the little devil to somebody that has them. Not fast, 40k Bps, but anything wireless seems like kind of a fun toy. 3Com dongle I KNOW will turn up, so I am less wild about getting one from a distant place, but all deals considered. Noteworthy, it isn't real clear to me just what I would do with this one, but I suspect the dongle is pretty obvious given the SCSI2 connector it must have. If I could use it with one of my old laptops to field test hard drives it would be worth some cost for a cable, but I haven't found anyspecs for it. BTW I bought the 3Com and Noteworthy from a scrapper with a box full at $5 each.

24 years, 8 months

Looking for Tek 545B manual for someone

by rhblake＠bigfoot.com

Anyone have a ops & service manual for a Tektronix 545B (old tube type, circe 1965) oscilloscope? A friend of mine in Wyoming has been given one and she wants to learn how to use it. A photcopy is even good. I have some commercial sources but if anyone has ever tried to find a manual you know what vultures the manual vendors can be. Any responses are greatly appreciated.

24 years, 8 months

Looking for Tek 545B manual for someone

by mcguire＠neurotica.com

On April 16, Russ Blakeman wrote: > Anyone have a ops & service manual for a Tektronix 545B (old tube type, > circe 1965) oscilloscope? A friend of mine in Wyoming has been given one > and she wants to learn how to use it. A photcopy is even good. I have some > commercial sources but if anyone has ever tried to find a manual you know > what vultures the manual vendors can be. > > Any responses are greatly appreciated. Can't help you with the manual, but tell your friend that she's gonna love it. I've got a 545A that I just adore. It's a wonderful scope. My everyday scopes are Tek 2465A and HP 54111D, but I'll keep my trusty 545A forever. It's a really rock-solid scope. -Dave McGuire

24 years, 8 months

SCSI CD-ROM

by alinder＠ProgressLighting.com

Hi All, Many thanks to Joe for supplying me with a keyboard and mouse for my HP Apollo. Works great. It did allow me to boot up and provided me with some functionality but the OS is corrupt. Now I'm in the market for an external chassis or external SCSI CD-ROM that would allow me to reload an operating system. I wish there was a DRMO or disposal site close to me, but I happen to live in one of those places where used computer parts are scarce and if you can find them you have to pay $$$$$$$. I thought ebay was bad. Any help would be appreciated. Arnie

24 years, 8 months

My Collection

by jos.mar＠bluewin.ch

-----Original Message----- From: Jerome Fine <jhfine(a)idirect.com> To: classiccmp(a)classiccmp.org <classiccmp(a)classiccmp.org> Date: Friday, April 13, 2001 5:18 PM Subject: Re: My Collection >>Marian Capel wrote: > >> PDP8/F with TU56 and DSD440 >> PDP8/A with TU56 and RL01 >> VT100, hacked about to contain an 11/23, with external ST412, runs RX11. >> Anybody has some RT11 manuals available. >> Jos Dreesen > >Jerome Fine replies: > >Interesting collection. I had not realized that DSD made a controller for the >PDP8, just for the PDP-11. Also I am really surprised that DEC made >an RL01 controller for the PDP8. As someone else mentioned: the RL01 only fits to the 8/A. The DSD440 controller for omnibus will have to be made from the schematics in the manuals..... Luckily i have an omnibus experimental board. But currently the DSD fails it's selftest... > >AS for your VT100, it sounds like you might have a VT103 which was a standard >DEC product. Does it use a dual 11/23 but have added a 3rd party MFM controller >with its own boot ROM or are you using a quad 11/23 and an RQDX1? > The system is definitly a hacked VT100 : it contains an M8186 ( dual 11/23?) a RQXD1, (with a possible custom boot prom), a M8044 32 KMOS memory board , itself hacked to contain 256K,a M8043, a third party NC550 programmable clock and a DSD440 controller card. The system boots of the ST412 into RT11. The system is in a very hobbyist state... Of course the VT100 also contains a second powersupply. >Also, I am not surprised, but no one seems to consider software as part >of their collection It certainly is, but how often does a system you've pulled from the dumpster contains a matching suite of software ? Jos Dreesen >

24 years, 8 months

Micro-Expander disks

by Parapadakis＠Tesco.Net

Hello, Back in '82, I used a micro-Expander with a floppy drive. It run CP/M an we used it for CIS-COBOL programming. If I remeber, the disk-drive was an Micropolis(???) Does anybody know the details of the disk format, so that I can read the disks I have? Regards George Parapadakis

24 years, 8 months

Dr. Dobb's from 82 & 83

by nerdware＠laidbak.com

Hi, gang. I have 8 issues of Dr. Dobb's from 82 & 83. I tried 'em on ebay, but the response was underwhelming both times I listed them. So, I'm offering them to the first person who wants them and is willing to pay postage. Let me know. Thanks! Paul Braun Cygnus Productions nerdware(a)laidbak.com

24 years, 8 months

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test-drb April 2001