test-drb October 2008

test-drb@ccmp.vtda.org

235 participants
330 discussions

by mcguire＠neurotica.com

Hey folks. Does anyone here have any information about the Heath ET100 "Educational Computer"? Specifically, I'm looking for keyboard protocol information, as I have one that's lacking a keyboard, but I'd like to find any other available documentation as well. Thanks, -Dave -- Dave McGuire Port Charlotte, FL

16 years, 2 months

Keyboard for Beehive B-100?

by derschjo＠msu.edu

Hey all -- I suppose this is extremely unlikely, but does anyone have a spare keyboard for a Beehive B-100 terminal? Picked this up awhile back and it needs some repair (cap kit, etc...) but I assume that I'm probably never going to find a matching keyboard for this thing :). I'm not nearly ready to take this one on as a project, but I'm making a list of things that I'm keeping vs. things that need to get into other hands, and while I'd love to hold onto this, if I can't get a keyboard I'm never going to get any use out of it... Anyone have any leads? Thanks, Josh

16 years, 2 months

Lot of 4 VAXstation II/GPX in Mass.

by oldcpu2＠rogerwilco.org

eBay item 360098064240 I'm not usually one to spam the list, but thought someone local might be interested. Looks like a nice opening price, with no reserve. I have no relationship with the seller. - Jared

16 years, 2 months

DEC LA75 printer

by tiggerlasv＠aim.com

I've seen an assortment of LA75 printers, many "new in the box" on e-bay over the last several months.???Several were selling for $19.95, plus shipping per printer. . . I'm not sure what they're going for "today", but it might be worth looking into.? .? . T

16 years, 2 months

PLM80 V4 docs needed

by jefferwin＠gmail.com

>Jeff Erwin said the following on 10/13/2008 1:44 PM: >> OK, time again to dust off the old brains out there. I found a ("the") >> ISIS-II emulator that runs under dos, which comes with a PLM80 compiler. It >> also comes with link, locate, objhex and other goodies. The PLM80 compiler >> identifies itself as PLM80 V4. I worked on the development of the ISIS-II >> stuff at Intel in the very early 80's as well as on the National >> Semiconductor Starplex system (anyone remember that one?) so I am able to > >tinker around and remember how most of this works, but version 4 of the > >PLM80 compiler is getting the better of me. >> >Yes, I remember the Starplex. But about all I remember was that it was >NS's development system and competed with Intel's MDS. The Starplex was the NS answer to the MDS, but was much more 'late 70's' in its design. The prom programmer was built into the system, as was the screen and floppy drives. All very modular. I learned asm80 writing the editor and assembler for that beast. >> I have the PLM80 Programmer's Manual, but it is for earlier versions of the >>two-pass version of PLM80, version 4 was a single pass version that used the >>inker and locator, all of which was the precursor to the PLM86 compiler and >> tools. I believe this version came out shortly before the 8086 was >> introduced, everyone went on to the segmented world and never looked back, >> which may explain why there isn't much out there for it. I am not able to >> locate any information on this version 4 of PLM80 anywhere, and the use and >> format is definitiely different from prior versions of PLM80. >> >I've used PL/M-80 extensively in the past, but I don't remember V4 being >that much different than earlier versions. All versions of PL/M-80 that >ran under ISIS-II used the linker and locater. The only version that I >know of that didn't was the Fortran version that ran on mainframes. It >produced absolute object code, usually in the form of an Intel hex format. Version 4 was radically different from the 3.X and prior versions. The earlier versions used the $X controls, version 4 used the controls that were then used in the PLM86 compiler. Also, the DATA statement was eliminated and other language constructs were changed. PLM80 V3 code would not compile without mods. I remember it being released at about the same time the 8086 and PLM86 was was released and the effort was to make PLM80 and PLM86 somewhat similar. The PLM80 3.x docs are pretty much worthless if you are using the 4.0 compiler. 4.0 was also one executable, a big change from the PLM81 and PLM82 2-pass method the earlier versions used. >> Anyone out there have any information or pointers for me? I have tried all >> of the excellent repositories of manuals and emailed Herb, his site >> indicates that he might have what I need. Anyone have an ISIS-II set of >> manuals sitting around that can check for me? >> >I'm sure I have a version of the manual that applies to V4 of the >compiler. It *may* be in pdf form, but certainly on paper. Are there >some specific questions that you have? I'll check when I get home >tonight. At work now. I'd love to get a copy of whatever you have relative to 4.0. Emailing the PDF is probably easiest, I am more than happy to pay any costs associated. >> Specifically, I am in need of: >> >> 98-00268B plm 80 programming manual, V4 >> >> Thanks. >> >> Jeff Erwin >> >> By the way, I am running the ISIS-II emulator in a DOS box under windows, >> itself an emulator. Windows is running under Parallels on my Mac Pro which >> is running OSx. Is it possible to get further from reality here?? >> >I've done many "jobs" using that DOS emulator. It works great! And >these days it is much faster than my real MDS systems. But it isn't >nearly as elegant as the big blue box powering up, dimming the lights in >my house, and the whir of cooling fans and glow of a real crt. Oh, >those were the days. >Dave Yes indeed! The rumble of the 7Mb hard drive (14" across if I remember right) as it spun up. My favorite, of course, is the famous "Error 7, User PC = xxxx" which covered almost every error you could make...

16 years, 2 months

Need help with dead 11/23+, FIXED :)

by tiggerlasv＠aim.com

> The later the version, the more MSCP boot devices are > supported, and you're supposed to upgrade the ROMs in a KDF11 to match > those in the RQDX1 or RQDX2 controller *and* vice-versa, and you should > definitely use -BF or later for RQDX3.? Version -BG (called -BH in some > places, it's the same ROM set and same code) introduced TK50 boot > support, and -BJ refined that to make it more reliable. That would make sense, then. I had the -BF proms, when my 11/23+ had an RQDX3 and some RD52's. (This was back around 1990-ish) At that time, I was using?a Cipher F880?under?TSV05 emulation, so I wouldn't have noticed the lack of MU boot support. . .?? The TK50 was on my "new" 11/73. Darned if I can remember what I was running for disk back then. Fujitsu Eagle, with an SC03, maybe???? ;-) T

16 years, 2 months

was "Re: old 386 pc, vga port" now DS1287

by brad＠heeltoe.com

"Antonio Carlini" wrote: > >Well a 386 may not count as vintage yet (or ever ...) but isn't it more >in keeping with the spirit of what we do here to hack, twist and bend >the modern to fit in with the old, where possible? Shouldn't the OP pull >a pin on a common or garden cable rather than drill a mobo connector? I pulled the pin :-) I got the compaq setup program to work but it would still not boot. I'm sure the DS1287 rtc has lost it's battery but I would have thought it would be ok as long as I didn't turn off the power. I reset all the settings but it complains when I reboot that it does not have it's settings. %^$^$^%$#$. Am I high to think that if I buy one of the DS1287's on ebay it might work? Or all those so old that it's a waste of money? Anyone try lately? A while back I brought an IPX back to life replacing the dallas chip, but that was easily 5 years ago, maybe longer. (I even tried putting the old compaq ESDI controller in a newer pc, but it's not happy; it does auto discover the drive & geometry but the boot fails with an error that looks like a bios problem) I'm going after the DS1287 with a dremel tonight and solder a 3v battery to it :-) hi ho! -brad

16 years, 2 months

Apple IIe or Apple //gs FORTH or LOGO recommendations?

by legalize＠xmission.com

Does anyone have any particular recommendations for a FORTH or LOGO environment on an Apple IIe or an Apple //gs? -- "The Direct3D Graphics Pipeline" -- DirectX 9 draft available for download <http://www.xmission.com/~legalize/book/download/index.html> Legalize Adulthood! <http://blogs.xmission.com/legalize/>

16 years, 2 months

old 386 pc, vga port - but one pin is blocked?

by brad＠heeltoe.com

This is something I've never seen before; I'm trying to revive an old dead Compaq for a friend of a friend. I went to plug in a stock VGA cable (15 pin) and it would not go. The connector on the Dell motherboard (this is a very very old 386) has one pin blocked. Someone here must know what that means; what do I do? grab the needle nose and hack my cable? -brad

16 years, 2 months

OT: Deciphering disk format

by sellam＠vintagetech.com

This is a somewhat OT request. I'm trying to recover files from a 4 disk (3.5") floppy set of Sybase SQL Anywhere for QNX Version 5.5.05. The first thing I tried to do is mount the disks under Linux using the QNX4 filesystem, but it bombs out. So I imaged the disks using ImageDisk (of course) and looked at the image file. It doesn't contain a filesystem as I had initially guessed, so now I'm trying to figure out what it represents. As best as I can currently determine it looks to be some sort of archive that spans across multiple disks. I'm not sure if this is a Sybase specific format, a QNX specific format, or what. The disks all have the following similar header information on T0, S0: vol 00001 00002 000000 5d69b244 11/Jul/99-17:00 wsql50 Disk 2 has: vol 00002 00002 000000 f9f96f2f 11/Jul/99-17:00 wsql50 ...etc. So the first group of digits is obviously the disk number, the third group is probably some CRC hash, etc. The contents of the disk are entirely binary. There is no text, lending further evidence that this is some sort of compressed archive. Does anyone recognize this as a header for a known archive format? Any help or insight would be greatly appreciated. -- Sellam Ismail Vintage Computer Festival ------------------------------------------------------------------------------ International Man of Intrigue and Danger http://www.vintage.org [ Old computing resources for business || Buy/Sell/Trade Vintage Computers ] [ and academia at www.VintageTech.com || at http://marketplace.vintage.org ]

16 years, 2 months

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test-drb October 2008