test-drb February 1998

test-drb@ccmp.vtda.org

147 participants
783 discussions

by dwollmann＠ibmhelp.com

Would anyone be interested in working on an IBM S/36 emulator for Linux? I'm not a S/36 guru, but I have several, one 5363 up and running and about 10 years of experience hacking C (please don't throw any gimpelesque C programming problems at me, I'm not up for it right now <g>). I'm not ready to roll yet, but if anyone's interested I can start gabbing about it and collecting info. I want to install and play with a couple of the emulators that are floating around out there as well as collect information on the instruction set, etc. As far as periphs are concerned, we can get lift the OS (SSP) and microcode (if it's even needed) off a 5.25" set of the distribution diskettes from a standard PC floppy drive. I don't even want to think about 8", although it could be done with the the Microtech FDC and a driver. Just a thought. Dave Wollmann dwollmann(a)ibmhelp.com

26 years, 10 months

Provenance and lineage

by Marty＠itgonline.com

Allison, I agree. Find an original classic and bring it back to life. But this is my subjective viewpoint (as well). If one wants to frankenstein a machine that is entirely their business, there is no right or wrong to this hobby and I can only speak for myself. I also restore old radios and televisions. Some fellow enthusiasts will take an old television cabinet and place a new color chassis in it, others refinish cabinets to look brand new. There are cases where an incorrect chassis is added to a set to get it working because the original is unobtainable. It is all subjective and up to the individual. Marty ______________________________ Reply Separator _________________________________ Subject: Re: Re[2]: Provenance and lineage Author: classiccmp(a)u.washington.edu at internet Date: 2/26/98 12:00 AM < I don't care for replicas. Instead of building a replica why not try < to make your own design from scratch? At least it would be original. I'm likely one of the few that could build a TRS-80/altair/? clone and use unused parts all of the correct age! My spares bin is that deep and old. To me there is no point, I can find an original and bring it back to life easier. Allison ------ Message Header Follows ------ Received: from lists3.u.washington.edu by smtp.itgonline.com (PostalUnion/SMTP(tm) v2.1.9i(b5) for Windows NT(tm)) id AA-1998Feb26.000025.1767.28853; Thu, 26 Feb 1998 00:00:25 -0500 Received: from host (lists.u.washington.edu [140.142.56.13]) by lists3.u.washington.edu (8.8.4+UW97.07/8.8.4+UW97.05) with SMTP id UAA25683; Wed, 25 Feb 1998 20:56:17 -0800 Received: from mxu2.u.washington.edu (mxu2.u.washington.edu [140.142.32.9]) by lists.u.washington.edu (8.8.4+UW97.07/8.8.4+UW97.05) with ESMTP id UAA29334 for <classiccmp(a)lists.u.washington.edu>; Wed, 25 Feb 1998 20:56:00 -0800 Received: from europe.std.com (europe.std.com [199.172.62.20]) by mxu2.u.washington.edu (8.8.4+UW97.07/8.8.4+UW97.09) with ESMTP id UAA18566 for <classiccmp(a)u.washington.edu>; Wed, 25 Feb 1998 20:55:59 -0800 Received: from world.std.com by europe.std.com (8.7.6/BZS-8-1.0) id XAA04350; Wed, 25 Feb 1998 23:55:57 -0500 (EST) Received: by world.std.com (TheWorld/Spike-2.0) id AA14341; Wed, 25 Feb 1998 23:55:43 -0500 Message-Id: <199802260455.AA14341(a)world.std.com> Date: Wed, 25 Feb 1998 23:55:43 -0500 Reply-To: classiccmp(a)u.washington.edu Sender: CLASSICCMP-owner(a)u.washington.edu Precedence: bulk From: allisonp(a)world.std.com (Allison J Parent) To: "Discussion re-collecting of classic computers" <classiccmp(a)u.washington.edu> Subject: Re: Re[2]: Provenance and lineage X-Listprocessor-Version: 8.1 beta -- ListProcessor(tm) by CREN

26 years, 10 months

Electronic Goldmine

by rigdonj＠intellistar.net

I couldn't find my old catalog for these folks but I got a new one in the mail today. They have an 800 phone number, it's 1-800-451-7454. They also have a website at "www.goldmine-elec.com". Tell them I send you, maybe they'll give me a discount :-) This is the place that had the pens for the Radio Shack pen plotters. Joe

26 years, 10 months

Can anyone identify this item ? (BASF HD?)

by weese＠mind.net

BASF model 6106, part #54670 Looks like a HD, connected to a floppy with a ribbon cable, which then goes to the motherbd. Found in what appears to be a homebrew TRS80-type puter with LNW expansion board. Thanx in advance for any help. I'd also be interested in any advice as to where to list this Beast for sale. (weese(a)mind.net) ---mikey

26 years, 10 months

Motorola MEK6802D5

by amichael＠nortel.ca

I remember building embedded control systems with these D5 cards back in the early eighties. You are right, it is an evaluation system, but it was often used for simple prototypes and small production runs. Motorola priced it relatively cheap so engineers could gain familiarity with the 6802, which was an "update" of the classic 6800 processor. The 6802 incorporated the 2-phase clock generator circuitry onchip-- you used to have to add a nuisance clock circuit to make the 6800 run. I think the 6802 also included 256 bytes of RAM (but my recollection's fuzzy on this point.) Since the board also included a little debug/monitor program in PROM, using that hex keypad and display, you could learn a lot about the instruction set just by hooking up a power supply and playing. It was a lot like the KIM or AIM-65 boards for the 6502 cpu. Does the D5 have a large set of edge connect fingers (like, say, 86 contacts or something like that)? I can't remember... Other Motorola evaluation kits, like the D2 (a predecessor of your D5, also based on the 6802 cpu but built as 2 boards--the keypad was separate) had a full electrical interface to Motorola's ExorBus, which was their proprietary general-purpose microsystem bus. They made a full range of heavy-duty industrial boards for ExorBus, and their development systems used it too, so you could build full-blown microsystems with their board sets. This was a competitor to Intel's Multibus in the industrial control market. You could take a D2, when you got tired of playing with it as an evaluation system, detach the keyboard, and plug it in to an ExorBus as the cpu card. It's barely possible I've got some old docs hiding at home... I'll check. Ian McLaughlin <ian(a)okjunc.junction.net> writes: > >Hello all, > I just aquired a "Motorola Memory Systems MEK6802D5" single board >computer. It appears to be a 6802 evaluation or prototyping unit. It >has a hex keypad and a 6-digit HEX display. In my old Motorola >literature, I can find a reference for a MEK6802D3 from 1979, which >appears to be an older version of this. The date code on the chips >places it at circa 1980. > >Does anyone have any information on this unit? Any idea where I can get >any documentation or programming info? It appears to be fully functional >(at least, I get a display, and I can page up and down through memory >examining and changing contents, etc). > >Any info would be appreciated. -- Arlen Michaels Nortel Ottawa, Canada (613) 763-2568 amichael(a)nortel.ca

26 years, 10 months

Pascal System

by allisonp＠world.std.com

<I think this calls for the development of a custom Pascal unit to access <foreign filesystems (ie. FAT). I don't think Pascal gives you enough lo <level control to do this right from the language itself, but I'm sure <there are ways to link in assembled code. A project to add to the <spare-time list. P-sys pascal can get to devices and disks so to write a disk with a different directory structure is doable. It's been done for P-sys to CP/M, Turbodos, apple][. You can also link in assembly code. Also I believe it may be possible to write a disk driver(for hard disk) in pascal and bind it to a free unit. For that you would UCSD pascal Docs and any implementation docs for the specific system. Some of that might be possible to infer. Though it's been 10 years since I last ran my copy of NS* UCSD P-sys but other than speed I remember it as flexible, well organized and cramped (northstar* single density drives were only 80k!). Allison

26 years, 10 months

UCSD Pascal

by jfoust＠threedee.com

UCSD Pascal for IBM PC-DOS could run on a hard disk by using .VOL files, which were floppy images of the P-System block format. For much UCSD P-System info, see my web page, including utilities that can get a directory and burst these .VOL files. - John Jefferson Computer Museum <http://www.threedee.com/jcm>

26 years, 10 months

Mac hi-res monitor

by A_Finney＠wfi-inc.com

Are you still interested? At 10:56 AM 2/11/98 EST, you wrote: >yes! i need one! glad to pay shipping to nc. is it available? > >david > > >In a message dated 98-02-10 15:25:34 EST, you write: > ><< Does anyone need a Mac mono monitor? Model number MO400, circa 1987. Best > offer takes it, no matter how pathetic. Recipient either pays shipping or > picks it up in the LA area (it's not heavy at all, I can't imagine that ups > ground would be more than a few bucks on this thing). >> > >

26 years, 10 months

TIMSAI (was Photo of Smithsonian microcomputer exhibit)

by rcini＠email.msn.com

On Wed, 25 Feb 1998 08:28:45 -0800 (PST), Tim Shoppa <shoppa(a)alph02.triumf.ca> wrote: {snip} >>For those who really want a S-100 front panel machine, maybe they'd be >>willing to pay for me to make duplicates of my TIMSAI. Features: {snip} Tim, I heard that at one point you were making schematics and info about your TIMSAI project available to those who are interested. Is this still the case? ------------------------------------------------- Rich Cini/WUGNET <nospam_rcini(a)msn.com> (remove nospam_ to use) - ClubWin Charter Member (6) - MCP Windows 95/Windows Networking

26 years, 10 months

Photo of Smithsonian microcomputer exhibit

by photze＠batelco.com.bh

Well, I've had an idea for quite some time, and now's the best time yet to pop it up... in many developing contries, resources are streesed out, and many attempts to industrialize these contries are going underway. The thing is that in some areas, going to school's a new requirement, and that these schools arn't up to specs. The idea for them going to schools is so that they have better opertunities than their parents did (so that they could say do accounting instead of sweeping floors). Now, to me, that means having at least a little coputing experience. I want to design (with help!) a computer that gives the most power at the lowest price. The shipping computers to other contries idea is noble, but we need to go farther, and, this can be fun. We could use the same idea, etc. if anyone's interested, please contact me privately. I'm really interested in it now, but need lots of help. Thanks, Tim D. Hotze -----Original Message----- From: Charles A. Davis <cad(a)gamewood.net> To: Discussion re-collecting of classic computers <classiccmp(a)u.washington.edu> Date: Wednesday, February 25, 1998 5:49 PM Subject: Re: Photo of Smithsonian microcomputer exhibit >Scott Walde wrote: >> >> > >Thinking out loud: >> > >I wonder what the market would be for an Apple I replica? >> >> Also thinking out loud: >> Maybe if we as collectors flood the market with Altair and IMSAI and Apple >> I replicas it would drive the price of the real things back down. > >Yeah, but!!! > >Can you picture the problems trying to document the lenieage of a >'genuine' Altair, IMSAI, or Apple. > >Chuck > >-- >----------------------------------------------------------- >He, who will not reason, is a bigot; William Drumond, >he, who cannot, is a fool; Scottish writer >and he, who dares not, is a slave. (1585-1649) >While he that does, is a free man! Joseph P. 1955- >----------------------------------------------------------- > (be sure to correct the return address when using 'reply') >Chuck Davis / Sutherlin Industries FAX # (804) 799-0940 >1973 Reeves Mill Road E-Mail -- cad(a)gamewood.net >Sutherlin, Virginia 24594 Voice # (804) 799-5803

26 years, 10 months

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test-drb February 1998