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

by CLASSICCMP＠trailing-edge.com

>A while back I believe someone posted an address for a site that provided >the schematic for hooking up an 8" drive to a pc. IF so, please pass it >on to me again. Sorry for losing it. What you want is the "comp.os.cpm FAQ", available from: http://www.cis.ohio-state.edu/hypertext/faq/usenet/CPM-faq/faq.html Not only does it tell how to hook an 8" floppy drive to a PC-clone and succesfully use the combination, it also contains invaluable information on many other questions frequently asked here. -- Tim Shoppa Email: shoppa(a)trailing-edge.com Trailing Edge Technology WWW: http://www.trailing-edge.com/ 7328 Bradley Blvd Voice: 301-767-5917 Bethesda, MD, USA 20817 Fax: 301-767-5927

27 years, 8 months

1
0
0 0

IBM 3274

by cdrmool＠interlog.com

As Jay Jaeger pointed out to me, this thing is a terminal controller. I was thinking it was a small server. Makes sense given the label on the disk that came with it. I should have guessed from the number as well. Is this of use to anyone on the list? I'm in Toronto. I'm not going to store it as its out of my league for collectables. If nobody wants it I'll grab the 8" drive out of it and hook it up to my PC. Of course as soon as I do that the mainframe will show up. Probably sitting in the garbage of the man around the corner who works for IBM. Let me know soon. Colan

27 years, 8 months

1
0
0 0

Adaptec HD controller access? (picture up)

by roblwill＠usaor.net

The picture's up. It's fairly big, but it was the best I could do with a desktop scanner, and let the lables and everything still be readable. If anyone has any info on this card, let me know. BTW: The connectors for the HD have been cut off, because my scanner is just a bit too small to scan a full-length card. -Jason *********************************************** * Jason Willgruber * * (roblwill(a)usaor.net) * * * * http://members.tripod.com/general_1 * * ICQ#-1730318 * ************************************************ --------- > > Hi! I have an old Adaptec Hd controller that I'm trying to use in an IBM > PC (5150). Here's what it says on it: > > adaptec, inc. > ASSY401406-00 > REV K > > I'm trying to find out how to get into the controller's BIOS so that I can > set up the HD (using DEBUG). There's two jumper blocks, and one single > jumper. I'm going to post a picture at: > > <http://members.tripod.com/general_1/adaptec.jpg> > > I'll try to get it posted in about 20 minutes. > > ThAnX, > > -Jason > > *********************************************** > * Jason Willgruber * > * (roblwill(a)usaor.net) * > * * > * http://members.tripod.com/general_1 * > * ICQ#-1730318 * > * /0\/0\ * > * > Long Live the 5170! * > * \___/ * > ************************************************

27 years, 8 months

2
1
0 0

AMDOS?

by dastar＠ncal.verio.com

What did Advanced Micro Devices make in the late 70s (?) that ran AMDOS/29? I got several 8" disks a couple weeks ago in AMD disk sleeves with the following hand-written labels: System 29 AMDOS/29 V1.2 S/N 18-0 CPM BASIC-E AMDOS-29 BASIC-E COMPILE RUN PROMGEN 1 Some of these are obvious. I'm hoping it'll ring a bell for someone who can tell me what they belong to. Sellam Alternate e-mail: dastar(a)siconic.com ------------------------------------------------------------------------------ Always being hassled by the man. Coming in 1999: Vintage Computer Festival 3.0 See http://www.vintage.org/vcf for details! [Last web site update: 11/02/98]

27 years, 8 months

4
9
0 0

VIRUS! DANGER!

by jeff.kaneko＠juno.com

DAMN, DAMN, DAMN!! Sorry. Not meant for broadcast. I was trying to get this to Jason W. *&%$$#$#&* REPLY button!!! On Fri, 06 Nov 1998 08:32:17 -0500 Phil Clayton <handyman(a)sprintmail.com> writes: >> This is urgent. Remember that ZIP file I sent you with the >SpeedStor?! >> >> Destroy it, NOW!! >> >> I don't know how, but it has been infected with the Jerusalem >virus. >> Damn! I'm sorry, guy. I'm really, really sorry. >> > >Hey I remember that Virus from the early 90's.. Its easy to get rid >of >without >distroying the program. Just run Mcafees Clean on it.. It will remove >it.. >Another popular virus was the "Stoned Virus".. In 1990 I used to get 2 >or 3 >computer repairs at my shop per week of units infected with that >one... >I felt like a Doctor back in those days! HeHe!!!! > >Phil.... > > ___________________________________________________________________ You don't need to buy Internet access to use free Internet e-mail. Get completely free e-mail from Juno at http://www.juno.com/getjuno.html or call Juno at (800) 654-JUNO [654-5866]

27 years, 8 months

1
0
0 0

Redux of 6502==6800

by rcini＠email.msn.com

Just as a follow-up... I found some datasheets from Rockwell dated 1987 that day that *all* of the 65xx processor devices (i.e., the 6502-6507 abd 6512-6515) were "bus compatible with M6800". Before I change the "story" on my web site, I'd like to have a consensus of: 1. the history of the 6502 processor 2. if there was a 6500 and 6501 Thanks! Rich Cini/WUGNET - ClubWin!/CW7 - MCP Windows 95/Windows Networking - Collector of "classic" computers <========= reply separator ==========>

27 years, 8 months

2
1
0 0

Classic != IBM AT

by maxeskin＠hotmail.com

Speaking of which, I read in a PC repair book that the 486SX is a 486DX with certain lines cut to disable the math coprocessor. The thing that went into the coprocessor socket was a rebranded 486DX that took over all functions of the SX when installed. Anyone know about this? >>Philip.Belben(a)pgen.com wrote: > >>> No thanks to whoever said the 8088 and 8086 were the same thing. If that's >>> the case, the Pentium and the 80386 are the same thing :-) > >>In general terms, without getting into a lot of super-geek discussion, the >8086 >>and 8088 are in the same category in that they are both predominantly an XT >>class processor, despite the 8 and 16 bit differences.... > >Yes, to say that the 8088 and 8086 were the same is incorrect, but they >_basically_ had the same core and everything... it was just the data bus >was 8 bit on the 8088 and 16-bit on the 8086. They were fully compatible >program-wise, just that the 8086 was faster as it could push 2x data over >the 8088. > >Comparing the 80386 and the Pentium wouldn't be fair, tho. Comparing the >80386SX (with the 16-bit data bus) and the 80386DX (with the 32-bit data >bus) would be a lot better comparison... as again, the chips were fully >compatible, but the DX's were faster due to the larger data bus. > >Just the way I seem to remember it... > >Roger "Merch" Merchberger ______________________________________________________ Get Your Private, Free Email at http://www.hotmail.com

27 years, 8 months

5
4
0 0

Short Intro

by amc358＠interserv.com

> On Friday, November 06, 1998 7:31 PM, Ward Donald Griffiths III wrote: > Don't recall exactly, but it was longer than that. A couple of years > as "Kilobaud", then as "Kilobaud Microcomputing" as the font for the > first word shrank and the font for the second word grew, then a couple > of years as just "Microcomputing". Of course, there were more pages > published in the few years of the spin-off "80-Micro" than there were > in the whole run of Kilobaud under any name. Which itself spun-off > "Hot CoCo". January 77 to November 84. I stumbled into someone who wanted to get rid of his old computers magazines. He gave me (for free!) every issue of Kiloboad and the first four years or so of Byte, plus a bunch of others. What a find. Serendipity at it's best. Al McCann

27 years, 8 months

1
0
0 0

ePay revisited once more

by apulo＠joyce.eng.yale.edu

Russ, The problem you're encountering isn't an error in math, it's an error in understanding. You're misunderstanding is common becayse Ebay words thier rules rather crappily. You are charged 5% of all sales up to $25 PLUS an additional 2.5% for $25 to $1000. So using the printer that sold for $41, you get charged 5% for the first $25 (1.25) then 2.5% for the additional $16 (.40) for a total of $1.65. I know, it's a weird system :) Tony

27 years, 8 months

2
1
0 0

SCSI questions

by manney＠lrbcg.com

I have a ZEOS 486 board with a SCSI controller. I don't do SCSI much, so I have some questions... A customer connected my SCSI drive backwards to the (motherboard) controller. He reported being unable to get the BIOS to recognize the drive. 1) Is the SCSI drive (a 170 MB Toshiba) toast? Can it be fixed? 2) Is the motherboard SCSI controller toast? 3) There's no separate SCSI setting under "drive type". Should I use "no drive", or set the parameters to something? Thanks manney

27 years, 8 months

3
2
0 0

6501 and 6500/1 (was Re: Revamped Web site up)

by rcini＠email.msn.com

OK, I looked at the data sheet: "The 6500/1 is a complete, high-performance 8-bit NMOS microcomputer on a single chip, ans it totally upward/downward software compatible with all members of the 6500 family." "The 6500/1 consists of a 6502 CPU, an internal clock oscillator, 2048 bytes of Read Only Memory (ROM), 64 bytes of Random Access Memory (RAM) and flexible interface circuitry. The interface circuitry includes a 16-bit programmable counter/latch with four operating modes, 32 bidirectional input/output lines (including two edge-sensitive lines), five interrupts and a counter I/O line." "Mask Programmable Options: Internal pull-up resistors on ports A, B, C, D. Selectable for 8-bit port groups only, not for individual port lines. Internal pull-up resistor on the CNTR line." Kind of sounds like a 6502 and a 6522 rolled together with a small ROM and some RAM. Other interesting tidbits: no mention of 6800 compatibility; separate power pin for the internal RAM; five interrupts include reset, NMI, two edge-sensitive, counter overflow. None of the data sheets that I have (not even the "family" ones) mention a 6501. Rich Cini/WUGNET - ClubWin!/CW7 - MCP Windows 95/Windows Networking - Collector of "classic" computers <========= reply separator ==========>

27 years, 8 months

2
1
0 0

Short Intro

by allisonp＠world.std.com

< Just curious if anyone remembers a magazine called "Kilobaud" - Seems < like it had a short life. Yes I remember it, mostly hardware bent and good too. Lasted at least four years. Allison

27 years, 8 months

2
1
0 0

OT: Very (sorry)... Hey! Digital camera going for $75

by manney＠lrbcg.com

www.fastmodems.com is selling Mitsubishi DJ-1000's for $75.

27 years, 8 months

1
0
0 0

WSJ Article posted (psst. don't tell Dow Jones & Co.)

by rcini＠email.msn.com

As promised: http://highgate.comm.sfu.ca/~rcini/classiccmp/pdf/wsj1030.pdf Don't try the link immediately...I'm uploading stuff later tonight. Rich Cini/WUGNET - ClubWin!/CW7 - MCP Windows 95/Windows Networking - Collector of "classic" computers <========= reply separator ==========>

27 years, 8 months

1
0
0 0

Revamped Web site up

by rcini＠email.msn.com

On Thu, 5 Nov 1998 14:28:21 +1, "Hans Franke" <franke(a)sbs.de> wrote: >>The 6500/x wasn't a clone at all - maybe a simplified design >>using the same philosophy about a CPU, but the 6500/1 >>(or 6501) did use the 6800 Bus _and_ was pin compatible, This is true. I looked in some other data that I have (I think in the Rockwell R6500 Hardware Book, I think), where it explicitly says that. Rich Cini/WUGNET - ClubWin!/CW7 - MCP Windows 95/Windows Networking - Collector of "classic" computers <========= reply separator ==========>

27 years, 8 months

1
0
0 0

MOS 6530's (Was: KIM-1 (Was: Apple I clone (was Apple I Computer

by dcoward＠pressstart.com

>> There was one version of one of the CBM disk drives (I think it was the >> 8252LP) where a 6530 was replaced by a daughtboard containing (I think) >> an 6532 + a ROM + TTL glue. I don't know how universal that solution is, >> but I guess something could be worked out. > >Jep, thats exactly the soulution I was suggesting. > Just grab one of these people that want to build a 64 bit Z80 computer or a IMSAI clone. Builting a 6530 daugther board should be a piece of cake for them. And as a hint, have them compare the schematics of the KIM with the schematics of the VIM or the SYM. They use 6532s. ========================================= Doug Coward Press Start Inc. Sunnyvale,CA =========================================

27 years, 8 months

1
0
0 0

Classics made the WSJ Again

by rcini＠email.msn.com

On Thu, 5 Nov 1998 07:40:18 EST, SUPRDAVE(a)aol.com wrote: >>everyone start scouring the thrift stores and radio rallies and buy up >>everything now! prices for old worthless computers shirley will go up now! ...and stop calling me Shirley! Rich Cini/WUGNET - ClubWin!/CW7 - MCP Windows 95/Windows Networking - Collector of "classic" computers <========= reply separator ==========>

27 years, 8 months

1
0
0 0

ePay revisited once more

by rhblake＠bigfoot.com

For those of you that are tired of hearing about the online auctions I exxpress my apologies. For those of you that use eBay to sell I need to express a little concern about their fee system so that you can watch your accounts. Seems I've had three items in the $25 to $1000 range sell and should have seen a 2.5% fee added as a "final value fee". Well an example is an item that sold for $242.50 at close. The fee listed is $6.69 rather than the 6.06 that 4 of my calculators ran up. I'm not an accountant but I know how to do percentages. The fee of 5% for items under $25 come up fine. I had two printers sell today and they are also wrong. One sold for $41.00 and has a fee of $1.65 rather than the 2.5% fee of $1.03 and the other sold at $31.27 with fee listed as $1.41 instead of the 2,5% fee of 78 cents. I've written eBay support but don't expect an answer until Monday. My whole point of this is to go back and check the fees on your items! You might very well be getting ripped without knowing it. Sure I'm only screwed on a buck or two but eBay is making out when you consider the volume sold every day. If 1000 items closed daily and each seller was overcharged 25 cents they'd have $250 more than they were supposed to. You get my point I hope and will now have the foreskin, er, foresight to check the account detail and their math. Thanks for the time in listening to my babble.

27 years, 8 months

1
0
0 0

NCR server

by CharlesII＠nwonline.net

Does anyone know anything about a NCR model 0202 server?

27 years, 8 months

1
0
0 0

PDP-11/23+ CPU needed...

by sethm＠loomcom.com

A non-text attachment was scrubbed... Name: not available Type: text Size: 587 bytes Desc: not available Url : http://www.classiccmp.org/pipermail/cctalk/attachments/19981106/52af9358/at…

27 years, 8 months

2
1
0 0

Good Finds ?

by lwalker＠mail.interlog.com

Based on my recent finds I think a refination of Rax's theory of computer affinity synchronicity is in order. I am a PS2 fan and have a couple of 80s, a 60 and a 57(SCSI I love it) as well as a couple of PS1s in my collection. The recent thread on ATs and PS2s and models 25 and 30 caught me but I had no desire to expand my PS2 representation as I have enough weird 286's . While I have never used a model 25 or 30 I mistakenly joined the discussion on these models. I had decided this month that I was going to avoid going to the big central Goodwill branch since I always come away with something I can't resist and my 1 bedroom apt. is reduced to crawl space. By accident(?) however I dropped into the neighborhood branch and ( of course) there was a model 30. For $10 I can't resist. My modification to Rax's theory is that not only will the parts you acquire represent and demand that the affiliated other parts be reunited but that even thinking about them will require a response. Mini or micro Rax's law holds true.. I also found a 9 vol. set of Open Systems SCO UNIX v.4.2 manuals. Uh-oh...... In addition a nice hi-res monitor with the TTL-Digital switches. That seems safe enough. Has anyone thought of setting up a computer version of A.A. ciao larry lwalker(a)interlog.com

27 years, 8 months

2
1
0 0

Spring Cleaning - UPDATE 2

by Anthony.Dellett＠Staples.com

I have removed more stuff that is sold or is pending sale. All items listed herein are now price negotiable :) $10 plus shipping, the RAM cards alone are worth $10 :) Atari 800 (not working, parts?) $30 Atari 1050 Disk Drive (SIO cable included) $30 Atari 1050 Disk Drive (SIO cable included) $30 Commodore 64 (complete in box) $30 Commodore 1541 Disk Drive (in box, works, grey model) $10 Commodore 1541 Disk Drive (in box, dont work, white model) $25 Commodore 1541 II Disk Drive (complete in box) $35 Commodore 128 (complete in box) *** Due to complete underwhelming response, the IMSAI has been posted on ebay *** http://cgi.ebay.com/aw-cgi/eBayISAPI.dll?ViewItem&item=40066378 $40 Kaypro II (incl. boot disk, this has a third party RTC upgrade in it, it needs new batteries) $40 Kaypro IV (incl. boot disk) $200 NorthStar Advantage (Works perfectly, comes with Graphic CP/M 2.2) $30 TI-99/4A Computer (beige model, in box) $60 TRS-80 Model III (with some software) $150 8" SS/SD Dual Drive Subsystem (ICOM, it's a really nice subsystem) $50 "Fat" Macintosh (Mac 512K, works great, in original box with original packing) $20 CoCo 2 (Works peachy) Buyers pay shipping charges FOB Lawrence, Massachusetts. I'm willing to pay parts of shipping on larger items. Whatever isn't spoken for here by next monday (11/9) will be posted on Ebay. Thanks Tony

27 years, 8 months

1
0
0 0

Magazines available

by manney＠lrbcg.com

1988-9 Home Office Computing, plus a couple of PC World. Anyone want? Also, some books -- Small computers for the small businessman (dilithium press... remember them?) Bits, Bytes and Buzzwords (1983) The Tenderfoot's Guide to Word Processing (Featuring Executive Assistant) Sidekick book (for Commodore) manney

27 years, 8 months

1
0
0 0

DEC ribbons, $500 each (just kidding)

by manney＠lrbcg.com

Cleaning out my ribbon drawer... (1) new in package ribbon marked REORDER No. LA50R-06 (1) used ribbon, same size (2) carbon ribbons, new, which I think were for a DEC daisy wheel printer (1) used ribbon, ditto Free to a good home, altho' a few bucks for my starving children would be appreciated. U pay shipping. Also, now that I'm thinking of it, I have a l-o-o-o-o-ng (75 or 100 ft) 36 pin cable off a linewriter. Anyone want it enough to pay shipping? manney

27 years, 8 months

1
0
0 0

PR_Princeton_92.html

by mlin＠mlin.lib.ma.us

SOCIETY FOR SCIENTIFIC EXPLORATION PRESS RELEASE Embargoed until December 15, 1992 CONTACT: Marsha Sims, Executive Editor, Journal of Scientific Exploration Princeton University Mind-Matter Experiments Reported Stanford, CA, December 15, 1992 --- An article published today in the Stanford-based Journal of Scientific Exploration (Vol. 6, No. 4), published by the Society for Scientific Exploration, reports on experiments carried out at Princeton University to investigate the possibility that the human mind can influence random number devices in a way that can be measured in a laboratory. Prof. Robert Jahn, an engineer and former dean in the Princeton School of Engineering, and Brenda Dunne, also of Princeton, released a detailed report based on nearly half a million experimental trials carried out by Jahn, Dunne, and coworkers at the Princeton Engineering Anomalies Research (PEAR) Laboratory. The tests demonstrate an extremely minute, but statistically measureable, ability of the mind to skew the output of electronic number generators and other devices. As Brenda Dunne puts it, "Gamblers throughout history have believed that they could affect the outcome of a random process like rolling dice or shuffling cards. The phenomenon we're measuring is a lot more subtle, but it's the same idea and we've measured it in the laboratory." Volunteer experimenters taking part in the PEAR experiments sit in a relaxed environment and concentrate their attention on an electronic device designed to generate purely random sequences of numbers, in effect an electronic roll of the dice. The task of the volunteers is to "coax" the machine into yielding larger than average or smaller than average numbers. The volunteers declare their intent ahead of time, high or low, and then begin the experiment. And to rule out possible disturbances in the equipment the experimenters sometimes make a null intent, that is, state in advance that they will "coax" the machine to do exactly what a random machine should, going above and below a mean an approximately equal number of times, yielding a so-called baseline.for comparison. The key to the success of the Princeton group lies in the computerization of the experiment. By using fast electronic devices automatically recording the results directly into a computer, thousands of microchip dice rolls can be recorded in an hour or two. As this is going on, the computer displays the up or down trends to the experimenter as a form of feedback. This gives the experimenter a way to concentrate on influencing the machine. The deviations achieved in any given run are practically immeasurable but the results of half a million test runs show an unmistakable signature of an effect the researchers attribute to human consciousness. Detailed mathematical analysis suggests that a minute perturbation of the "elementary binary probability" is involved, as if the mind were ever so slightly nudging the electronic dice in the desired direction. An even more puzzling result of the experiments is that the effect can be produced even if the experimenter is several thousand miles away from the random device, and perhaps even over significant intervals of time. In the most extreme case an experimenter in Europe on Monday might concentrate on producing the effect, but the actual measurements on the device are, by prior agreement, not carried out until Friday in Princeton. Speculating on the phenomenon Jahn states, "All forces known to physics, like gravity for example, diminish with distance. And no forces in physics operate freely across time like this. It's as if consciousness is somehow able to direct its influence directly across space and time, and understanding that certainly poses a challenge for science." And Dunne adds: "This is similar to what mystics have claimed through the ages, but now we have scientific evidence." Are there any practical results from such miniscule influences?.. Maybe. With computers and microchips controlling the operation of everything from automobile engines to the newest passenger jets, the intrusion of consciousness at microscopic levels, whether deliberate or unintentional could have very real consequences. As Jahn puts it: "It's something science cannot afford to simply ignore any longer. And besides, it's such an exciting challenge to our whole way of thinking about the physical world." ###

27 years, 8 months

3
2
0 0

Classics made the WSJ Again

by SUPRDAVE＠aol.com

uh oh... everyone start scouring the thrift stores and radio rallies and buy up everything now! prices for old worthless computers shirley will go up now! david In a message dated 11/5/98 7:26:53 AM US Eastern Standard Time, rcini(a)email.msn.com writes: > > Last Friday's Wall Street Journal (NY Edition) had a front-page article > about collecting classic computers. Our very own Kip Crosby, Jim Willing, > and the VCF were mentioned.

27 years, 8 months

2
1
0 0

VIRUS! DANGER!

by jeff.kaneko＠juno.com

Jason: This is urgent. Remember that ZIP file I sent you with the SpeedStor?! Destroy it, NOW!! I don't know how, but it has been infected with the Jerusalem virus. Damn! I'm sorry, guy. I'm really, really sorry. Jeff ___________________________________________________________________ You don't need to buy Internet access to use free Internet e-mail. Get completely free e-mail from Juno at http://www.juno.com/getjuno.html or call Juno at (800) 654-JUNO [654-5866]

27 years, 8 months

2
1
0 0

PR_Princeton_92.html

by franke＠sbs.de

>> Princeton University Mind-Matter Experiments Reported > Did we just get spammed? If so, that's the most off-the-wall spam I've > seen yet. We did - I've seen this quote flying around since years. > I'm adding it to my collection of Classic Spam. Is it public ? Dougs VSPAMM (Virtual SPAM Muesum :) ? Gruss Hans -- Ich denke, also bin ich, also gut HRK

27 years, 8 months

1
0
0 0

A couple of new finds and Next question

by paulk＠microsoft.com

> does > anyone no how to create a boot diskette for the Next ? > See http://enterprise.apple.com/NeXTanswers/HTMLFiles/2667.htmld/2667.html NeXTanswers is your friend! > Thanks. John > Paul Kearns paulk(a)microsoft.com

27 years, 8 months

2
1
0 0

Classic != IBM AT

by franke＠sbs.de

>> Yes, to say that the 8088 and 8086 were the same is incorrect, but they >> _basically_ had the same core and everything... it was just the data bus >> was 8 bit on the 8088 and 16-bit on the 8086. They were fully compatible >> program-wise, just that the 8086 was faster as it could push 2x data over >> the 8088. Not only this, the 8088 BIU was kind of krippled and issued 16 Bit Memory access also when a 8 Bit access would be sufficeient. This costs even more bandwide. > Do I not recall correctly that the 8088 was in fact half of a two chip > set and that the 8086 was 'self contained', and that IBM elected to not use > the other half. No, both are 'self contained' CPUs. But there are two other processors within the family the 8087 FPU and 8089 IOP. The complete design looks a lot like a real computer :) Gruss Hans -- Ich denke, also bin ich, also gut HRK

27 years, 8 months

1
0
0 0

PR_Princeton_92.html

by fauradon＠pclink.com

Gives me an idea: Let's all think very hard about removing morrons from the internet. Francois ------------------------------------------------------------- Visit the desperately in need of update Sanctuary at: http://www.pclink.com/fauradon/ >> On Thu, 5 Nov 1998, MLIN Public Account wrote: >> >> > Princeton University Mind-Matter Experiments Reported

27 years, 8 months

2
1
0 0

Classic != IBM AT

by Philip.Belben＠pgen.com

> Lawrence Walker wrote: > >> Both the model 25 and 30 came out in 8086 and 286 versions. The 25 had 2 >> 286 models. 25-286 and 25LS. The models 50 and 60 were also 286s' > > The models up to (but not including) the 50 series were ISA and after that were > microchannel. The 25 came out originally as an XT class machine with an 8086 > processor ( see http://www.can.ibm.com/helpware/8525.html ) and the 286 version of > it was only one version that I'm aware of as seen at > http://www.can.ibm.com/helpware/8525286.html > > The LS may be an aftermarket version, much like putting a Reply motherboard into > one. > > All the info on the vintage IBM machines can be found starting with the index page > at IBM Canada (eh!) at http://www.can.ibm.com/helpware/vintage.html Thanks for the reference. I have bookmarked it. Thanks also to everyone who has pointed out the model 25 and the 286 versions. Both well after my time - when I left IBM there were just the 30, 50, 60 and 80. I think I had heard of the 25 though - perhaps that will teach me not to open my mouth quite so wide. No thanks to whoever said the 8088 and 8086 were the same thing. If that's the case, the Pentium and the 80386 are the same thing :-) Philip.

27 years, 8 months

8
9
0 0

Anyone have a PC/XT MFM controller? (was:Adaptec HD controller access?)

by roblwill＠usaor.net

O.K. Now that I found out a bit about the controller, I've found that I have a slight problem: 1.) The Adaptec 2070 is an RLL controller 2.) The Seagate ST-506 5MB HDD is an MFM HD. 3.) Even if the card was MFM, I really don't feel like doing anything in hex. Now for the questions: 1.) Does anyone have a spare PC or XT MFM HD controller laying around? If you do, what would you want for it (please send me a personal email). I do agreee that the WD controllers are more direct, but any controller that'll work should be fine. 2.) How do I get an external floppy to work with the XT? I have a cable and P/S salvaged from a 4869 (think that's the model #) IBM drive (case and drive are long gone) connected to a full-height IBM drive. I have the 4869 cable connected to the port on the floppy controller. Thing is, it dosen't work. Do I have to change a jumper on the controller board, or do I need to change the DIP settings on the M/B (If I need to change DIP's, just tell me, and I can check the setting list on IBM's site). 3.) Anyone have an external TRS-80 disk box (with P/S)? It dosen't necessarily need to have a drive in it, because I want to use it to house the IBM drive in (I was thinking of using a Disk II box, since it would probably match better, but they don't have a P/S). ThAnX, > > Ding ding ding!!! > > Hold on! > > I got the info off the HD bible and I found what we need to know: > > Most WD, SMS/OMTI use C800:5 > few did use C800:6 > > But the Adaptec 8 bit card use weirdest way to do LLF process: > > C800:CCC > > and you have to input the needed info in hex. > > Honestly, I prefer WD 1:2 or 1:3 controllers, the good ones are > XT-GEN kind. > > Jason D. > > PS: How did I know something is still wrong because I was been there > before. Oh, those 8 bit adaptec MFM cards have highest failure rate! > email: jpero(a)cgocable.net > Pero, Jason D.

27 years, 8 months

1
0
0 0

DEC troubleshooting

by allisonp＠world.std.com

< Yes, they did, with red tags on them supposedly describing the fault < to help someone diagnose and fix the boards. But many of them simply < ended up in salvage, which many of us used to visit each week to < find stuff for our home systems. At that time (more than a decade salvage was for "excess" and junked. Boards there were either plentiful and therefor costly to store the excess or they were out of rev. Also boards or FRUs that were not in reve and not upgradeable were salvaged. Sometimes there were boards that went through the depot repair cycle twice and were considered unreliable. < I miss salvage... As the cost of materials and the economics of depot repair became attractive so there was less and less material going to salvage. Also the liability issue. What killed it was a few employies abusing the system. I built a lot of boards up for my early 11s and a few others from material gotten from salvage. The boards I got were easily fixed or like the M8044s by filling the unpopulated rows I upped them from 16kw to 32kw. They were in salvage because no one wanted 16kw cards anymore. That allowed me to have 256kb of ram in my first 11/23. The cost to deliver service has always been a problem and during the 80s is was something to be managed as margins could be tight. People wanted uptime, low cost and systems were smaller so they expected their bills to shrink accordingly. Designing a product for seviceability and service product that was manageable was quite challenging. Allison

27 years, 8 months

1
0
0 0

DEC troubleshooting

by rigdonj＠intellistar.net

At 04:48 PM 11/5/98 -0500, you wrote: >> Sure. Tell the customer he/she will be down an extra hour while >> you extend the board to find the fault, desolder the chip >> and replace the 10 cent bus driver. Nope. Swapping was reality in the field >> when I was there. > >I must agree here. Doing component level debugging just makes no sense in >the field. > It may not make sense time wise but it does when you consider the cost of sparing circuit boards instead of component parts. I worked in field service for Burroughs Corp and a private company that supported TI and IBM mainframes and we ALWAYS did component level repair. We didn't even have spare boards. >> Board level (early 80's DEC) was (unfortunately) >> replaced with shotgunning and option swap out by many in the late 80's. > >Did the boards not go back to DEC for rework? I later worked as an electronics technician for a company that had been sending industrial controller boards back for repair. The flat rate cost was $800 per board. I was hired to repair the boards and they saved the cost of my yearly salarly in the first month. Joe > >William Donzelli >william(a)ans.net > >

27 years, 8 months

2
1
0 0

Classic != IBM AT

by allisonp＠world.std.com

< Do I not recall correctly that the 8088 was in fact half of a two chip < set and that the 8086 was 'self contained', and that IBM elected to not < the other half. < - don Huh? The 8088 is for all intents and purposes the same part as the 8086. the prformance hit for the 8bit vs 16 bit data bus averages around 20%. The reason the is the prefetch que is 6 bytes on the 86 and 4bytes on the 88 as a measure to "tune" it. The instruction sets are identical and the supporting chips are exactly the same (86 will need more bus buffers). Oh, and the FPU the 8087 worked with either part and sized it's bus accordingly. I've done designs using both and they can almost be drop in for each other (same for the 80188/186). Allison

27 years, 8 months

1
0
0 0

Macintosh System (fwd)

by dastar＠ncal.verio.com

Here's a guy who wants to sell his Macintosh 128K (slightly upgraded). Please reply to the seller only. Reply-to: walk(a)me.unlv.edu ---------- Forwarded message ---------- Date: Tue, 20 Oct 1998 18:14:44 -0700 From: Raymond Kozak <walk(a)me.unlv.edu> To: dastar(a)verio.com Subject: Macintosh System My mac is the original 128k series with a 512 upgrade. Is there any uinterest in these old systems? Thanks RCK --- Sellam Alternate e-mail: dastar(a)siconic.com ------------------------------------------------------------------------------ Always being hassled by the man. Coming in 1999: Vintage Computer Festival 3.0 See http://www.vintage.org/vcf for details! [Last web site update: 11/02/98]

27 years, 8 months

1
0
0 0

DEC troubleshooting

by mbg＠world.std.com

>I must agree here. Doing component level debugging just makes no sense in >the field. Even less so nowadays -- people can't stand to have their systems down for a minute let alone 15 or so... >Did the boards not go back to DEC for rework? Yes, they did, with red tags on them supposedly describing the fault to help someone diagnose and fix the boards. But many of them simply ended up in salvage, which many of us used to visit each week to find stuff for our home systems. At that time (more than a decade ago), scrap and salvage at digital was a way for employees to get hardware, usually at the board or FRU level... I remember finding lots of boards which basically said that they were dead, and I found that they had been misconfigured (some options had 1=off and 0=on for switch settings). When I configured them correctly, they worked just fine. Then there was the core memory option for my 11/10... it simply said 'bad' on the red tag... I examined the board and found a transistor hanging on by only one lead... I found a replacement, soldered it in and the board worked fine... I miss salvage... Megan Gentry Former RT-11 Developer +--------------------------------+-------------------------------------+ | Megan Gentry, EMT/B, PP-ASEL | Internet (work): gentry!zk3.dec.com | | Unix Support Engineering Group | (home): mbg!world.std.com | | Compaq Computer Corporation | addresses need '@' in place of '!' | | 110 Spitbrook Rd. ZK03-2/T43 | URL: http://world.std.com/~mbg/ | | Nashua, NH 03062 | "pdp-11 programmer - some assembler | | (603) 884 1055 | required." - mbg | +--------------------------------+-------------------------------------+

27 years, 8 months

2
1
0 0

PR_Princeton_92.html

by roblwill＠usaor.net

Seems like it. It's even out of date! ---------- > From: Doug Yowza <yowza(a)yowza.com> > To: Discussion re-collecting of classic computers <classiccmp(a)u.washington.edu> > Subject: Re: PR_Princeton_92.html > Date: Thursday, November 05, 1998 7:34 PM > > On Thu, 5 Nov 1998, MLIN Public Account wrote: > > > Princeton University Mind-Matter Experiments Reported > > Did we just get spammed? If so, that's the most off-the-wall spam I've > seen yet. I'm adding it to my collection of Classic Spam. > > -- Doug >

27 years, 8 months

1
0
0 0

Classic != IBM AT

by roblwill＠usaor.net

If that would be the case, would it be possible to replace an 8088 with an 8086 to make it faster, or would it not work, because of a possible 8-bit instead of 16-bit bus on the M/B? -Jason *********************************************** * Jason Willgruber * * (roblwill(a)usaor.net) * * * * http://members.tripod.com/general_1 * * ICQ#-1730318 * * /0\/0\ * * > Long Live the 5170! * * \___/ * ************************************************ ---------- > From: Roger Merchberger <zmerch(a)30below.com> > To: Discussion re-collecting of classic computers <classiccmp(a)u.washington.edu> > Subject: Re: Classic != IBM AT > Date: Thursday, November 05, 1998 7:38 PM > > Yes, to say that the 8088 and 8086 were the same is incorrect, but they > _basically_ had the same core and everything... it was just the data bus > was 8 bit on the 8088 and 16-bit on the 8086. They were fully compatible > program-wise, just that the 8086 was faster as it could push 2x data over > the 8088. > > Comparing the 80386 and the Pentium wouldn't be fair, tho. Comparing the > 80386SX (with the 16-bit data bus) and the 80386DX (with the 32-bit data > bus) would be a lot better comparison... as again, the chips were fully > compatible, but the DX's were faster due to the larger data bus. > > Just the way I seem to remember it... > > Roger "Merch" Merchberger

27 years, 8 months

1
0
0 0

Adaptec HD controller access?

by roblwill＠usaor.net

I'll try the other addresses. When I tried <G=C800:5>, the light on the HD (Seagate ST-506 5 MB) came on for about 10 seconds, the screen went blank, and the computer rebooted. I'll see if the other addresses will work. ThAnX, -Jason *********************************************** * Jason Willgruber * * (roblwill(a)usaor.net) * * * * http://members.tripod.com/general_1 * * ICQ#-1730318 * ************************************************ > > I tried to access the site, but it was too slow, and I was too impatient > :). Accessing the BIOS through debug is easy once you know the proper > address. The syntax from debug is "g=c800:5" with the "c800:5" being the > address in the BIOS to start the formatting routine. Other addresses > include c800:6, cc00:5, and cc00:6. On the Western Digital Super Bios, you > can set the drive parameters from the prompts and I don't know if the > Adaptec will allow this or not. If you have jumper blocks, the drive > parameters are most likely set with jumpers. > > I have found the easiest way to verify the address is to use the unassemble > command as there will always be a jmp instruction at the entry point in the > bios, i.e. uc800:5 and if there is no jmp instruction on the first line, try > another address. Good luck.

27 years, 8 months

1
0
0 0

Adaptec HD controller access?

by roblwill＠usaor.net

Adaptec is of no help that I could find. They only have stuff on the new boards. -Jason *********************************************** * Jason Willgruber * * (roblwill(a)usaor.net) * * * * http://members.tripod.com/general_1 * * ICQ#-1730318 * * /0\/0\ * * > Long Live the 5170! * * \___/ * ************************************************ ---------- > From: Jim Strickland <jim(a)calico.litterbox.com> > To: Discussion re-collecting of classic computers <classiccmp(a)u.washington.edu> > Subject: Re: Adaptec HD controller access? > Date: Thursday, November 05, 1998 7:34 PM > > On the old adaptec controllers (at least the old 1542b I have) you have to > enter a sequence in debug to kick off the on-board bios. I'd look at > adaptec's website for info on your board, they might even have the manuals > PDFd. > -- > Jim Strickland > jim(a)DIESPAMMERSCUMcalico.litterbox.com > ----------------------------------------------------------------------- > Vote Meadocrat! Bill and Opus in 2000 - Who ELSE is there? > -----------------------------------------------------------------------

27 years, 8 months

1
0
0 0

DEC troubleshooting

by allisonp＠world.std.com

< Sure. Tell the customer he/she will be down an extra hour while < you extend the board to find the fault, desolder the chip < and replace the 10 cent bus driver. Nope. Swapping was reality in the < when I was there. Board level (early 80's DEC) was (unfortunately) < replaced with shotgunning and option swap out by many in the late 80's. Economics... less down time and the failed card could be returned for repair and retest. Cards repaired under controlled conditions had better reliability. Option swap really used to fry me. < Sure. Had one of those guys at Naval Air Propultion in Trenton, NJ. < Customer: "The te16 won't go on line. U134 should go low, but it's floa < Can you bring us a driver chip." < < Field Service: "We don't have it in stock, but I'll get one in the next < three weeks if I P1 it... Or I could come down and change the LAW boar < on the drive (LAW -- TE16 Logic and Write board) in about 15 minutes." Reality was that it cost as much to handle the chip as the whole board! < Absolutely. That's a very common failure along with the diode and cap < on the VT100 video cards that's underrated. Severely underrated. A 50V cap running at 70! The diode was a victim. A remember a box of returned cards the size of a large chest refrigerator at WJO01 in '84. I happen to look at it and after the third or forth card surmized the failure... annoyed a few people that I could see that without a full field study. Oh, the cause was a transmission error, the person that drew up the BOM copied the wrong values. It would go years that way before someone becuse of the problem would pull the original DD, CS, KPL and see they didn't match. Classic case of why CADD was a desireable thing. Allison

27 years, 8 months

2
1
0 0

Adaptec HD controller access?

by roblwill＠usaor.net

Hi! I have an old Adaptec Hd controller that I'm trying to use in an IBM PC (5150). Here's what it says on it: adaptec, inc. ASSY401406-00 REV K I'm trying to find out how to get into the controller's BIOS so that I can set up the HD (using DEBUG). There's two jumper blocks, and one single jumper. I'm going to post a picture at: <http://members.tripod.com/general_1/adaptec.jpg> I'll try to get it posted in about 20 minutes. ThAnX, -Jason *********************************************** * Jason Willgruber * * (roblwill(a)usaor.net) * * * * http://members.tripod.com/general_1 * * ICQ#-1730318 * * /0\/0\ * * > Long Live the 5170! * * \___/ * ************************************************

27 years, 8 months

4
3
0 0

Xpost: S/36 software needed

by rhblake＠bigfoot.com

If anyone has what this person needs, please email him at the email address below: ------------- Robert Stachowiak <admin(a)uapd.uakron.edu> Akron, OH USA - Wednesday, November 04, 1998 at 18:12:02 If anyone might have the PC support PC install disk for an IBM System 36, I can't find the one that we should have. Should have link36.bat startrtr endrtr files on it. I have the book, I have the install files for the 36 but not for the pc's. Have to convert 5 or 6 years of data! Thanks for any help!

27 years, 8 months

1
0
0 0

KIM envy

by dogas＠leading.net

Are you asserting that AIM65 = KIM-1 ??? - Mike: dogas(a)leading.net -----Original Message----- From: Sam Ismail <dastar(a)ncal.verio.com> >You mean you don't remember my encased AIM65 that was on exhibit at the >VCF? There's a picture of it up on Jim Willing's web site.

27 years, 8 months

1
0
0 0

Apple campains (was:Altair Image Wanted)

by franke＠sbs.de

>> Oh yeah. I might scan it for people who missed it. Anyone interested? > Sledgehammers being tossed at BillG? Sure! Now does the hammerthrower > represent Sun, Netscape, Apple, or end-users? > ObCC: Apple used to be known for cool ads, but those Think Good or > whatever ads really grated on me. More sledgehammers, I say! Same with me (but I laught a lot about the PII vs. PPC spot :). Especialy this Think Different is a horror thing. And they eventualy couldn't hold up their own arrogat idea of presenting wordlewide unifying 'good' people, so, where is the idea ? Gruss H. -- Ich denke, also bin ich, also gut HRK

27 years, 8 months

1
0
0 0

Adaptec HD controller access?

by Innfogra＠aol.com

I'm pretty sure that controller is set by jumpers. And my books are at the whse! Pax

27 years, 8 months

2
1
0 0

DEC troubleshooting

by pechter＠shell.monmouth.com

> Date: Tue, 3 Nov 1998 21:28:22 +0000 (GMT) > From: ard(a)p850ug1.demon.co.uk (Tony Duell) > To: classiccmp(a)u.washington.edu > Subject: Re: PDP11 training troubleshooting > Message-ID: <m0zao01-000IyTC@p850ug1> > Content-Type: text > > > > Hmmm.. This actually wouldn't have worked for me, if I'd been allowed to > > > do what I liked to the machine. > > > > Well, the class wasn't 8-(... > > You know, I've made some nasty comments about Field Service in the past > (what DEC enthusiast hasn't...), but now I realise it wasn't all their > fault. I mean, not being able to pull boards is terrible... Yeah, but it taught you to think microcode, block diagram and real troubleshooting instead of pul and swap. I was a board swapper in the Field, but it made me an informed and logical board swapper. > > God gave us extender boards (and DEC made extender boards) so you could > run a CPU module outside the case to look at internal signals. It's a > standard way of figuring it all out. Trying to debug an 11/45 only being > able to look at backplane signals is horrible... > Sure. Tell the customer he/she will be down an extra hour while you extend the board to find the fault, desolder the chip and replace the 10 cent bus driver. Nope. Swapping was reality in the field when I was there. Board level (early 80's DEC) was (unfortunately) replaced with shotgunning and option swap out by many in the late 80's. > Were you give (or allowed) a KM11 maintenance card? For those who've not > seen one, it's a board (acutally 2 boards...) that you stick in special > slot in some DEC machines. It's got 28 lights and 4 switches on it. In > the 11/45 it'll let you single-step the microcode (or even the clock > sequencer), display flag signals, etc. You can get the uPC on the panel, > of course. They were used in the 11/70 class, the RK05 maint class and a couple of others. The 11 new hire used the 11/34's built in programmer panel for much the same stuff. > > >> However, in the real world I'm more likely to start with a 'lucky dip'. > > >> Unplug all connectors/boards, clean contacts, look for bent pins. Check > > >> all fuses. Power up and check the power rails with a voltmeter. > > > > > True... if you know someone's been playing inside. But in Field Service > > I'd check edge connector contacts _anyway_. Particularly if the fault > seems to be totally crazy. > > > with machines under maintenance most folks keep their hands out of > > them. (except for printers and terminals) This means something broke. > > Hmmm... OK, pity the poor field servoid who used to deal with the VAXen > at one of the Universities I was at. He knew that there were DEC hackers > there - people who read printsets for fun. The system manager was one > such, and I joined in the fun. > > Typically, we'd call out field service with a call of the form 'Oh, it's > gone again, and this time bring DEC part # <whatever>'. We'd already had > the thing apart you see, and knew what we were doing. DEC didn't seem to > mind too much - they'd bring the bit, do a few tests to confirm, and > install it. Sure. Had one of those guys at Naval Air Propultion in Trenton, NJ. Customer: "The te16 won't go on line. U134 should go low, but it's floating. Can you bring us a driver chip." Field Service: "We don't have it in stock, but I'll get one in the next three weeks if I P1 it... Or I could come down and change the LAW board on the drive (LAW -- TE16 Logic and Write board) in about 15 minutes." And then there was the site that complained about failing RK07 Dual port diags on 11/70's when the drives ran flawlessly unde RSX11 and IAS. The problem was race conditions in the diag. The diag was no longer being updated. The only fix that got the field service folk off the site was noop'ing the error calls on the tests with the race condition. > > > > Check power and work from there. > > Oh, indeed. And ACLO/DCLO. Those cause more problems that you'd believe. > Especially on H742 power supplies where C3 (I think) on the power control > board goes open. ACLO and DCLO then get mains frequency ripple on them, > and the rest is obvious. > > -tony Absolutely. That's a very common failure along with the diode and cap on the VT100 video cards that's underrated. Bill +---------------------------------------------------------------------------+ | Bill and/or Carolyn Pechter | pechter(a)shell.monmouth.com | | Bill Gates is a Persian cat and a monocle away from being a villain in | | a James Bond movie -- Dennis Miller | +---------------------------------------------------------------------------+

27 years, 8 months

2
1
0 0

Altair Image Wanted

by Marion.Bates＠Dartmouth.EDU

--- Cameron Kaiser wrote: ::> Speaking of sledgehammers (way OT), did anyone see the artwork in last ::> week's Time with a picture of Bill Gates and someone running down the aisle ::> with a sledgehammer? An excellent photocollage for an article covering the ::> anti-trust proceedings. :: ::I didn't see it. Sounds like a parody of the Apple 1984 commercial? Oh yeah. I might scan it for people who missed it. Anyone interested? --- end of quote --- Yes, that would be great. Thanks! -- MB

27 years, 8 months

2
1
0 0

2026

2025

2024

2023

2022

2021

2020

2019

2018

2017

2016

2015

2014

2013

2012

2011

2010

2009

2008

2007

2006

2005

2004

2003

2002

2001

2000

1999

1998

1997

test-drb