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

by ethan_dicks＠yahoo.com

--- Chuck McManis <cmcmanis(a)freegate.com> wrote: > Hi John, and anyone else. Does anyone know _where_ I might find a copy of > PDP-5 FOCAL? (if it even exists.) The only "software" that came with the > machine was in the form of early DEC diagnostic programs to insure that the > system was working properly. IIRC, FOCAL-69, at least, should support the PDP-5. -ethan ===== Even though my old e-mail address is no longer going to vanish, please note my new public address: erd(a)iname.com The original webpage address is still going away. The permanent home is: http://penguincentral.com/ See http://ohio.voyager.net/ for details. __________________________________________________ Do You Yahoo!? Send online invitations with Yahoo! Invites. http://invites.yahoo.com

26 years, 3 months

1
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PDP-5 Rescued!

by wilson＠dbit.dbit.com

>From: "johnb" <dylanb(a)sympatico.ca> >Date: Tue, 7 Jan 1997 03:18:31 -0500 ^^^^^^^^^^ No wonder John B scores all the cool hardware -- he has the ability to go back in time!!! :-) John Wilson D Bit

26 years, 3 months

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PDP-5 Focal

by cmcmanis＠freegate.com

Hi John, and anyone else. Does anyone know _where_ I might find a copy of PDP-5 FOCAL? (if it even exists.) The only "software" that came with the machine was in the form of early DEC diagnostic programs to insure that the system was working properly. --Chuck

26 years, 3 months

1
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Identify this LSI-11 floppy controller

by CLASSICCMP＠trailing-edge.com

>I have a couple floppy disk controllers from a device that contained an >integrated LSI-11 cpu and a few other boards. > >The floppy controller is from Charles River Data Systems (C) 1978. On >the connector, one of them has FC-202 / 1613 on it, the other has >FC-202 / 1703. The floppy disks that were connected to it were >single sided shugarts (801-2 if i recall correctly). Yep, what you have there is one of the early RX02 clones. >I'm curious if these can handle DSDD, and anything else that anyone >knows about it. No, it doesn't do DSDD. I've got a manual for the CRDS board here somewhere... If you're really interested in DSDD "RX03" controllers, the place to start your research is Chester Wilson's DYCM handler, which claims to support all the RX03 variants that exist in the wild. See http://metalab.unc.edu/pub/academic/computer-science/history/pdp-11/ go into "rt-11", then "misc", then "ducmv5". Read dyc.doc (which is really a text file, not a Microsoft Word file...) >Also, is their a web site with information on pdp-11 boards, similar >to the PDP8 omnibus lists and such that are available? i'd like to >be able to look up what should be common boards, such as LSI-11 >cpus, 32K 18 bit MOS memory boards, various serial and parallel >interface cards, etc. The "Field Guide to Q-Bus and Unibus Modules" is what you want, and versions have been floating around the net for years. It does very well with DEC-numbered modules, not so well with third-party boards (although they are admittedly a tough lot because they don't have a distinct series of identifying numbers!) You can find versions of it in many places, including the "hardware" page at http://metalab.unc.edu/pub/academic/computer-science/history/pdp-11/ and Megan's revisions at http://world.std.com/~mbg/ -- 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

26 years, 3 months

2
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Where has everybody gone?

by charp＠bitflash.com

Abrupt end of list... Solitude... Anguish.... Is anybody out there? Frederic Charpentier

26 years, 3 months

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Where has everybody gone?

by SUPRDAVE＠aol.com

In a message dated 4/24/00 10:05:38 PM Eastern Daylight Time, charp(a)bitflash.com writes: > Abrupt end of list... Solitude... Anguish.... > > Is anybody out there? > > Frederic Charpentier what the heck are you talking about? plenty of conversation going on... DB Young ICQ: 29427634 view the computers of yesteryear at http://members.aol.com/suprdave/classiccmp/museum.htm --You can lead a whore to Vassar, but you can't make her think--

26 years, 3 months

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VaxStation 3100 revisited

by allisonp＠world.std.com

Well... Alot of intervening miles later, one MMJ cable later, one doubly terminated BNC T later, my VaxStation 3100's a little happier. Still not booting though. SHOW DEV shows ESA0 (default boot) and the floppy (I forget the dau) and DKA300 which it will not boot from. I take it these were booted from somewhere else on the network. How can I get VMS on the DKA300 or at least see what's already there? Help! Thanks - Mike Well if it will nto boot from DAK300 (b DKA300 should work) then there is no OS and it was stripped. To get VMS on it you need the hobby CD (montagar) and a SCSI CDrom that can do small block size. Allison

26 years, 3 months

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Sony SMC-70

by charp＠bitflash.com

The Sony SMC-70 used the Sony Profeel for a monitor. This monitor used a special RGB connector... Anyway the signal is a standard RGB 1 Volt Peak-To-Peak, the resolution is standard NTSC. Frederic Charpentier

26 years, 3 months

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VMS clone..

by rhudson＠ix.netcom.com

Once upon a time there was a company putting out a VMS clone for the IBM PC/XT/AT.. These same guys had a Unix look alike too. Who where they? anyone remember?

26 years, 3 months

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Manuals! Want 'em?

by Marion.Bates＠dartmouth.edu

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26 years, 3 months

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Manuals! Want 'em?

by Marion.Bates＠dartmouth.edu

After much digging and sneezing, I've gathered some manuals to unload...mostly Mac-related but also some IBM. Here are a few I wrote down: Apple stuff: - shrinkwrapped IIsi and IIci owner's manuals (entire unopened sets of manuals for IIci -- including sys 7 reference -- email me if you want a list of what books are included) - shrinkwrapped Guide to System 7 - shrinkwrapped Guide to Macintosh Common LISP (I don't know if there are disks in there too, if you're interested let me know and I'll check) - big ol' box of A/UX manuals (didn't look in the box, so it may not be complete, but it probably is) - various other system manuals, not shrinkwrapped - assorted non-shrinkwrapped manuals for many OLD programs...Think C, Think Pascal, Timbuktu, Retrospect Remote, TrueBasic, etc. -- basically, things that are related to Mac system admin, or that are likely to be found in the math/cs dept of a college. If you're looking for software in those categories, email me off-list and I'll see if it's in the pile. IBM Manuals (outside my area of knowledge, I just wrote down the titles -- these are all mini-3-ring binders with cloth covers and "IBM" on them, some of which are together in original box as a set): - Technical Reference 2.02 PC XT - Macro Assembler - Guide to Operations - BASIC - MS DOS 2.10 - MS DOS 2.00 Let me know if you want any of these! -- MB

26 years, 3 months

4
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Industrial IBM XT

by vcf＠siconic.com

Here is someone with an industrialized IBM XT looking for a new home. Please reply directly to the orginal sender. Reply-to: attwss027(a)inetmail.att.net ---------- Forwarded message ---------- Date: Fri, 21 Apr 2000 19:12:25 -0500 From: Mark G <attwss027(a)inetmail.att.net> To: donate(a)vintage.org Subject: computer to donate: details Greetings, I have a very unusual machine which deserves a home other than the trash can. I can't remember the model numbers. I can look them up. It is an Industrial XT from IBM. It has: 10meg hard drive. full height 360k floppy drive. extra fan to suck air into the case. bar which clamps over the cards. 400 watt power supply. 8088 chip with 8087 and full ram. EGA monitor which is enclosed in a protective case includes a built-in fan to keep innards cool. This is fully working and comes with the classic magnesium keyboard. At my parent's house I also have a boxed set of IBM DOS 1.1 including the original disks and manual. I'm getting married soon and "gotta get rid of the computer soon." I hope this computer will be a good addition to your museum. Sincerely, Mark Gholson AT&T Commercial Web Site Services Home email: onear(a)juno.com onear(a)hotmail.com Sellam International Man of Intrigue and Danger ------------------------------------------------------------------------------- Looking for a six in a pile of nines... VCF Europe: April 29th & 30th, Munich, Germany VCF Los Angeles: Summer 2000 (*TENTATIVE*) VCF East: Planning in Progress See http://www.vintage.org for details!

26 years, 3 months

1
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Manuals! Want 'em?

by earl_evans＠yahoo.com

I would love to have the MS-DOS 2.x manuals, the Guide to Operations, and the IBM BASIC reference manual, if someone hasn't beat me to it. Thanks, - Earl --- Marion Bates <Marion.Bates(a)Dartmouth.EDU> wrote: > After much digging and sneezing, I've gathered some manuals to > unload...mostly Mac-related but also some IBM. Here are a few > I wrote down: > > Apple stuff: > - shrinkwrapped IIsi and IIci owner's manuals (entire unopened > sets of manuals for IIci -- including sys 7 reference -- email > me if you want a list of what books are included) > - shrinkwrapped Guide to System 7 > - shrinkwrapped Guide to Macintosh Common LISP (I don't know > if there are disks in there too, if you're interested let me > know and I'll check) > - big ol' box of A/UX manuals (didn't look in the box, so it > may not be complete, but it probably is) > - various other system manuals, not shrinkwrapped > - assorted non-shrinkwrapped manuals for many OLD > programs...Think C, Think Pascal, Timbuktu, Retrospect Remote, > TrueBasic, etc. -- basically, things that are related to Mac > system admin, or that are likely to be found in the math/cs > dept of a college. If you're looking for software in those > categories, email me off-list and I'll see if it's in the > pile. > > IBM Manuals (outside my area of knowledge, I just wrote down > the titles -- these are all mini-3-ring binders with cloth > covers and "IBM" on them, some of which are together in > original box as a set): > > - Technical Reference 2.02 PC XT > - Macro Assembler > - Guide to Operations > - BASIC > - MS DOS 2.10 > - MS DOS 2.00 > > Let me know if you want any of these! > > -- MB > > > ===== Earl Evans retro(a)retrobits.com Enjoy Retrocomputing Today! Join us at http://www.retrobits.com __________________________________________________ Do You Yahoo!? Send online invitations with Yahoo! Invites. http://invites.yahoo.com

26 years, 3 months

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ID this board?

by Marion.Bates＠dartmouth.edu

Thanks Tony, There are several large chips that say "Xilinx XC2018-70 PC84C A6396A9103E." More revealing, maybe, is what I just spotted amidst stickers and components: "Central Processing Unit." Heh. So this appears to be a big honkin motherboard from some...analytical thing. Another largish chip says "Dallas DS1287 Real Time" followed by more numbers. I am gonna hang this on my wall. Unless someone on the list is dying to have it. --MB --- Tony Duell wrote: > > Hey all, > > > I was at the local computer junkyard today and snagged a logic board I can't > identify. If anyone knows what it is, please enlighten me/us... > > > It's about 15 inches wide and 9 deep. Has a "test passed" sticker dated 1991. > The whole front edge is a connector. The rear port labels include things like > "octal-UART connector," "SCSI bus to disc," and lots of letters and numbers. It > says "Computer board PC 1916" on the left side and "Link Analytical made in > England" on the right. It was in a static bag and looks unused. I've sort-of come across a company called 'Link Systems'. In fact one of my ASR33s (Data Dynamics case/electronics) is badged by them. >From what I remember they made computerised (mostly) analytical instruments, spectrometers, electron microscopes, that sort of thing. The computers were sometimes based on PDP11 CPUs (or occasionally DG Novas IIRC). They may well have designed their own CPU boards later on, but I've never seen anything like that. My guess is that you've found a board, possibly an interface, possibly a complete CPU, from one of these instruments. What (if any) large chips are on it? -tony --- end of quote ---

26 years, 3 months

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Somewhat OT: Then & Now.

by jfedorko＠virtualadmin.com

Then... Big timesharing companies... Now... Application Service Providers Then... Service Bureaus... Now ... Web Hosting companies Is it repackaging or recycling? -Joel -----Original Message----- From: owner-classiccmp(a)classiccmp.org [mailto:owner-classiccmp@classiccmp.org]On Behalf Of David Vohs Sent: Friday, April 21, 2000 22:53 To: classiccmp(a)classiccmp.org Subject: Somewhat OT: Then & Now. This is something that I had posted on the comp.sys.cbm newsgroup that I thought would be intresting to see how much the computer world has (or hasn't) changed starting right around 1980 or so. So if you've seen this before, I apologize. Anyway, here are some things that have changed (or have they?) in the computer world: Back then we had: Daisychained peripherals to the Commodore IEC serial bus. Now we have: Daisychained peripherals to the Universal Serial Bus. Back then we had: The Original Macintosh. Now we have: The iMac. Back then we had: Computers with a built-in RF modulator. Now we have: Video cards with a built-in RF modluator. Back then we had: The Original Macintosh II. Now we have: The G3/G4 PowerMac. Back then we had: The Commodore 1581 head-knocking/Click of Death problem. Now we have: The Iomega Zip drives' Click of Death problem. Back then we had: The Macintosh Portable. Now we have: The iMac. Back then we had: The Tandy Model 100. Now we have: The PalmPilot. This is all that I could think of, I want anybody who can think of anything that hasn't changed to add something on this list. Let's show people that the old phrase "The more things change, the more things stay the same" is true! ____________________________________________________________ David Vohs, Digital Archaeologist & Computer Historian. Computer Collection: "Triumph": Commodore 64C, 1802, 1541, FSD-1, GeoRAM 512, Okimate 20. "Leela": Macintosh 128 (Plus upgrade), Nova SCSI HDD, Imagewriter II. "Delorean": TI-99/4A. "Monolith": Apple Macintosh Portable. "Spectrum": Tandy Color Computer 3. "Boombox": Sharp PC-7000. ____________________________________________________________ ________________________________________________________________________ Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com

26 years, 3 months

2
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Things that make you sick!

by rigdonj＠intellistar.net

Mike and I went to one place today and found the remains of a Data General Aiivion (sp?) in the scrap metal pile. We had gotten there too late to save it. :-( I did get the CPU module out of it. It has three large ICs on it. Two are XC88200RC25B s and the other is a MC88100RC25. Can anyone tell me what exactly these are? Joe

26 years, 3 months

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Interesting finds; 1801, National Semiconductor RM-665, Grid,HPs..

by allisonp＠world.std.com

>A few years ago in a surplus store I found the RCA CMOS databook that >contained (sketchy) specs for the 1801. However, the idiots were not I have basic specs fot the pair, deeply burried though. >The databook indicated that the 1801 is a two-chip set, which consists of >the CDP1801C and CDP1801R, the former containing the control circuitry and >that latter containing the registers. Apparently RCA designed it as a >production prototype, and did not intend it for commercial use, instead >recommending that customers design in the 1802 which was due out soon >thereafter. Not quite true. the pair were used by special customers for quite a while as they were by basic construction rad hard. There were a few minor instruction differences as well, the 1801 had fewer than the 02. Allison

26 years, 3 months

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VAXstation 4000VLC

by healyzh＠aracnet.com

On the topic of VAXstations, does anyone one the list have experience with hacking VLC's and or LCD's? I'm wondering how feasable it would be to hook an LCD display up to a VLC, and if it would be possible with off the shelf hardware. The other alternative I'm thinking of would be to pickup a cheap laptop, load Linux/X-Windows on it, and use it as an intelligent X-Terminal. At this point, you're probably asking, what on Earth am I trying to do. Well, I've decided I want a VAX "Laptop", and while I really doubt I can have it battery powered I want to see what I can do starting with a VLC as the base. I figure as long as I can get the final product about the size of an old Toshiba 5200 I'm on the right track. Of course I'm also thinking that if I can find the time to do this and do it right I'll have to build my own case for all the guts of the pieces. If nothing else a VLC and a Laptop used as a terminal should make a nice small easily portable VAX. I figure I'll initially try this out with my Mac PowerBook 540c since it's got built in ethernet and I can run eXodus on it for DECwindows support. However, as the 540c is only 640x480 I figure it's only good for a couple Mac telnet windows or a DECterm via X. Anyone have any ideas? I hope to start in on this next weekend, but it will depend on how soon the VLC I just bought for this takes to get here. As for the why, well, why not :^) Zane | Zane H. Healy | UNIX Systems Adminstrator | | healyzh(a)aracnet.com (primary) | Linux Enthusiast | | healyzh(a)holonet.net (alternate) | Classic Computer Collector | +----------------------------------+----------------------------+ | Empire of the Petal Throne and Traveller Role Playing, | | and Zane's Computer Museum. | | http://www.aracnet.com/~healyzh/ |

26 years, 3 months

1
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Another VaxStation 3100 question

by dogas＠leading.net

Another one of my VaxStation 3100's is a KA42 ver 1.3. It has LOGIN and (SET) PSWD commands in the DCL whereas my KA42 ver 1.2's do not. I don't know the password for the 1.3 box. Is there a way to reset it or find out what it is? Thanks again. - Mike

26 years, 3 months

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VaxStation 3100 revisited

by dogas＠leading.net

Well... Alot of intervening miles later, one MMJ cable later, one doubly terminated BNC T later, my VaxStation 3100's a little happier. Still not booting though. SHOW DEV shows ESA0 (default boot) and the floppy (I forget the dau) and DKA300 which it will not boot from. I take it these were booted from somewhere else on the network. How can I get VMS on the DKA300 or at least see what's already there? Help! Thanks - Mike

26 years, 3 months

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Looking for Allison Parent

by allisonp＠world.std.com

From: Sellam Ismail <dastar(a)siconic.com> To: Classiccmp(a)classiccmp.org <Classiccmp(a)classiccmp.org> Date: Saturday, April 22, 2000 11:56 PM Subject: Looking for Allison Parent Is Allison Parent still subscribed here? If so, could you please e-mail me with your current e-mail address? If not, could someone please let me know how I can contact her? Yes??? It's still allisonp(a)world.std.com Allison

26 years, 3 months

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Interesting finds; 1801, National Semiconductor RM-665, Grid,HPs..

by dogas＠leading.net

Hi all, I hope everyone is having a great weekend. Another item scored along with the rest of the subject's "interesting finds" was an Applied Microsystems thingy (an ES0130 (???)) It's a multibus gizmo in a small chasis missing the front plate. On the back , there are two db25 ports for Terminal and Computer, and a BNC for a Trigger. There is sticker on top listing two options installed: 1) AMC/ES-68000/8 and, 2) AN/403158. Another sticker on top says 128k. There are five cards installed on the back plane accessable from the front of the unit. They are: 1. ES Controller (with a 6809 on board) 2. ES Controller Memory 3. Trace and Break 4. ES Ram Overlay ver. 2 5. 68010 08/00 Emulator Anybody familiar with it? I also got two Dec boards: M7164 (it has 4 AMD2901 bit slicers on it) and a M7165. I'd happily trade both of these for a M7260 that I could dearly use. And last but not least found is an boxed A MAX, the Macintosh Emulator for the Amiga with the Apple ROMS but missing disks. Does anyone have this software? Thanks and beware the bunnies... - Mike: dogas(a)leading.net

26 years, 3 months

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Looking for Allison Parent

by dastar＠siconic.com

Is Allison Parent still subscribed here? If so, could you please e-mail me with your current e-mail address? If not, could someone please let me know how I can contact her? THANKS!!!!!!!!!!!!!!!!!! ! Sellam International Man of Intrigue and Danger ------------------------------------------------------------------------------- Looking for a six in a pile of nines... VCF Europe: April 29th & 30th, Munich, Germany VCF Los Angeles: Summer 2000 (*TENTATIVE*) VCF East: Planning in Progress See http://www.vintage.org for details!

26 years, 3 months

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want Mac parts?

by Marion.Bates＠dartmouth.edu

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26 years, 3 months

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Docs for IBM LaserPrinter

by Marion.Bates＠dartmouth.edu

Hi, I picked up what looks like a complete set of manuals for the IBM LaserWriter from October 1990. Four books: Software Applications/Driver Information User's Guide Technical Reference Supplies/Options Catalog Let me know if you're interested in any/all of them for cost of postage. -- MB

26 years, 3 months

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want Mac parts?

by Marion.Bates＠dartmouth.edu

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26 years, 3 months

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Docs for IBM LaserPrinter

by Marion.Bates＠dartmouth.edu

--- "Shawn T. Rutledge" wrote: LaserWriter would be Apple, not IBM --- end of quote --- Oops. I meant to write "LaserPrinter" -- that's actually what it says. -- MB

26 years, 3 months

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Interesting finds; 1801, National Semiconductor RM-665, Grid,HPs..

by rigdonj＠intellistar.net

Hi All, Mike paid a visit from Jacksonville today and we had a llloonnggg day of digging for computer relics. Mike found a Grid laptop and a NIB Grid MODEM. I found a 1801A CPU! This is the predecessor to the COSMAC 1802. I never expected to see one of these. I also found a HP 45 calculator, a HP 9816 computer, a pair of HP 9121 disk drives and a National Semiconductor RM-665 computer. The NS computer uses MultiBus cards and has an Intel 80/20 CPU card with a 8080 CPU. It also has Analog Devices card with several D-A and A-D devices on it. I've never heard of a National Semiconductor computer before. Does anyone know anything about them? Mike also got a Motorola HDS-200 Hardware Developement system with the plug ins for a 6502 CPU. Does anyone have any information about these? Joe

26 years, 3 months

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FS: Mac logic/analog boards

by Marion.Bates＠dartmouth.edu

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26 years, 3 months

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ID this board?

by Marion.Bates＠dartmouth.edu

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26 years, 3 months

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Progress on NEC APC

by dastar＠siconic.com

Ok, so thanks to Don Maslin who sent me an NEC APC system disk and a bit of luck I have finally been able to boot my NEC APC. I believe the drive heads were dirty, but constant running of the disk in the drive finally scraped away enough grime to make it read (couldn't find an 8" head cleaning disk...must organize warehouse; drives are enclosed and I couldn't seem to extract them from the machine to clean with alcohol...oh well). I stuck the disks I'm trying to recover data from in the B: drive and did a DIR but they all come back with "NO FILE". Now of course this means that the disks contain no files but I'm thinking there has to be something wrong here. The system disk is CP/M-86. I still don't know what format the disks in question are but I assumed they were also CP/M-86. What could be amiss here, aside from the possibility that the disks ARE empty? What utilities are available to me on the system disk to view a raw dump of the target disks? I can't believe after all this effort that these damn disks contain nothing. As always, any help or suggestions would be greatly appreciated, and please reply directly to sellam(a)vintage.org. Thanks! Sellam International Man of Intrigue and Danger ------------------------------------------------------------------------------- Looking for a six in a pile of nines... VCF Europe: April 29th & 30th, Munich, Germany VCF Los Angeles: Summer 2000 (*TENTATIVE*) VCF East: Planning in Progress See http://www.vintage.org for details!

26 years, 3 months

7
18
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Graphics card

by rmeenaks＠olf.com

Hi, I picked up a graphics card when I was down in Germany last week. It contains several SMB-type connectors labeled as follows: EX - What is this? VS - Vertical Sync CS - Composite (or Horizontal) Sync R - Red G - Green B - Blue What is EX?? I was planning on using the BNC-to-VGA connector which has 5 BNC connectors for VS, CS, R, G, and B but I dont know what the EX is used for... Ram

26 years, 3 months

2
1
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Somewhat OT: Then & Now.

by netsurfer_x1＠hotmail.com

This is something that I had posted on the comp.sys.cbm newsgroup that I thought would be intresting to see how much the computer world has (or hasn't) changed starting right around 1980 or so. So if you've seen this before, I apologize. Anyway, here are some things that have changed (or have they?) in the computer world: Back then we had: Daisychained peripherals to the Commodore IEC serial bus. Now we have: Daisychained peripherals to the Universal Serial Bus. Back then we had: The Original Macintosh. Now we have: The iMac. Back then we had: Computers with a built-in RF modulator. Now we have: Video cards with a built-in RF modluator. Back then we had: The Original Macintosh II. Now we have: The G3/G4 PowerMac. Back then we had: The Commodore 1581 head-knocking/Click of Death problem. Now we have: The Iomega Zip drives' Click of Death problem. Back then we had: The Macintosh Portable. Now we have: The iMac. Back then we had: The Tandy Model 100. Now we have: The PalmPilot. This is all that I could think of, I want anybody who can think of anything that hasn't changed to add something on this list. Let's show people that the old phrase "The more things change, the more things stay the same" is true! ____________________________________________________________ David Vohs, Digital Archaeologist & Computer Historian. Computer Collection: "Triumph": Commodore 64C, 1802, 1541, FSD-1, GeoRAM 512, Okimate 20. "Leela": Macintosh 128 (Plus upgrade), Nova SCSI HDD, Imagewriter II. "Delorean": TI-99/4A. "Monolith": Apple Macintosh Portable. "Spectrum": Tandy Color Computer 3. "Boombox": Sharp PC-7000. ____________________________________________________________ ________________________________________________________________________ Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com

26 years, 3 months

3
2
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Link update please

by dastar＠siconic.com

I need to update my link for the old ClassicCmp archive that Kevan Heydon had on his site. I remember there being some talk about moving this but I guess I failed to update my link. If someone could e-mail it to me at sellam(a)vintage.org I'd appreciate it very much. Sellam International Man of Intrigue and Danger ------------------------------------------------------------------------------- Looking for a six in a pile of nines... VCF Europe: April 29th & 30th, Munich, Germany VCF Los Angeles: Summer 2000 (*TENTATIVE*) VCF East: Planning in Progress See http://www.vintage.org for details!

26 years, 3 months

1
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Intel i960 evaluation board

by mark_k＠totalise.co.uk

On Fri, 21 Apr 2000 Kevin Schoedel wrote: >Since some i960s are still in production, you can most likely get >information and software from Intel. Indeed you can. You can order the "i960 Microprocessor Electronic Library" CD-ROM from Intel's literature centre. The order number is 272743-002. Or look on the Intel web site. -- Mark

26 years, 3 months

1
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Interesting finds; 1801, National Semiconductor RM-665, Grid,HPs..

by allisonp＠world.std.com

> I was wondering if anyone would catch that. You're right, the 1801 is >only half of the processor. Do you know what the 1800 looked like? Is it >also the same size as the 1801? Now I'll have to look for the 1800 half. Also the same size and likely the same appearance. Allison

26 years, 3 months

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IBM 3725 In Central Illinois

by ethan_dicks＠yahoo.com

--- Dan Linder <dlinder(a)uiuc.edu> wrote: > List, > > There is an IBM 3725 available... Just a large heavy blue computer. > I'm also quite interested in what it is. It is big, it is heavy, it is blue, but it isn't a computer. It's a PU (Physical Unit) Type 4 as seen from an SNA network standpoint, and is more commonly known as an FEP (Front End Processor) - Think of it as the I/O interface for a mainframe. This is the thing that a 3274 would talk to - that box we were discussing here a few days ago. The CPU is a PU Type 5, the 37x5 is the PU Type 4, the 3274 is a PU Type 2 and they all coexist happily in their own roles on an SNA network. Each PU Type can initiate or resond to certain types of network traffic; it's very hierarchical and structured. -ethan ===== Even though my old e-mail address is no longer going to vanish, please note my new public address: erd(a)iname.com The original webpage address is still going away. The permanent home is: http://penguincentral.com/ See http://ohio.voyager.net/ for details. __________________________________________________ Do You Yahoo!? Send online invitations with Yahoo! Invites. http://invites.yahoo.com

26 years, 3 months

1
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Interesting finds; 1801, National Semiconductor RM-665, Grid,HPs..

by dogas＠leading.net

> Mike also got a Motorola >HDS-200 Hardware Developement system with the plug ins for a 6502 CPU. Does >anyone have any information about these? Close Joe, It's not a 6502, it is a 6805 packeged like an Atari 2600 cartridge that's labled" HDS-200 Program Cartridge M6805, R2, U2, R3, U3" ;) - Mike: dogas(a)leading.net

26 years, 3 months

3
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Interesting finds; 1801, National Semiconductor RM-665, Grid,HPs..

by allisonp＠world.std.com

>I found a 1801A CPU! This is the predecessor to the COSMAC 1802. I never Half cpu... The 1800/1801 were a pair that implemented alost an 1802. >computer. The NS computer uses MultiBus cards and has an Intel 80/20 CPU >card with a 8080 CPU. It also has Analog Devices card with several D-A and >A-D devices on it. I've never heard of a National Semiconductor computer >before. Does anyone know anything about them? Mike also got a Motorola National did the BLC80xx series if memory serves, decent intel compatable multibus. Slightly surprized to see a ISBC80/20 cpu as they nominally had National cards. I think I have the manual for the BLC80204 8080 card that was the national equivelent of the ISBC8020. Allison

26 years, 3 months

2
1
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SIMM Remover tool

by technoid＠cheta.net

My Sparcstation 330 has 24ea 30-pin simms onboard. Removing them was a problem for me when I was diagnosing bad ram. I found that a 7.65x54mm cartridge for my 100+ year old Argentine Mauser rifle was the perfect tool for working with this type of simm socket. I suspect any full-metal-jacket round with a "Spitzer"-type nose (pointy) will work such as 7.62x39 Warsaw Pact or 5.56 Nato will work just as well or better. The trick is to start with the 'lowest' simm - the one that is 'under' all the others. Insert the nose of the round into the hole on one side of the simm, press down to disengage the clip on the socket and lever against the simm 'below' the one you are removing. The last simm is more difficult because there is no simm 'beneath' it to lever against but the tool is still helpful. Especially if your video card is like mine, piggybacked onto the motherboard. I lever against it for the last simm. The copper jacket is soft and will scratch but does not appear to shed material which is good because copper is conductive.... These minor scratches will affect accuracy when the round is fired so don't use this 'tool' as ammunition in a competition! Yes. I drew a five-shot, one-hole group at 110yards with my Winchester 30-30 rifle over open-sites one day. Can hit a quarter at 300yd with a scope..... As with all explosives, due care is indicated..... Regards Technoid

26 years, 3 months

1
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Interesting finds; 1801, National Semiconductor RM-665, Grid,HPs..

by Innfogra＠aol.com

In a message dated 4/21/2000 7:40:17 PM Pacific Daylight Time, rigdonj(a)intellistar.net writes: > National Semiconductor RM-665 > computer. The NS computer uses MultiBus cards and has an Intel 80/20 CPU > card with a 8080 CPU. It also has Analog Devices card with several D-A and > A-D devices on it. I've never heard of a National Semiconductor computer > before. The RM-665 was an OEM Intel Multibus 1 box from the early 80s. It sounds like you have a process controller of some sort. The Intel 80/20 is an 8080 Single Board Computer. This is the type of system built into industrial systems. Paxton

26 years, 3 months

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Things that make you sick!

by Innfogra＠aol.com

In a message dated 4/21/2000 7:45:14 PM Pacific Daylight Time, rigdonj(a)intellistar.net writes: > Two are XC88200RC25B s and the other is a MC88100RC25. Can anyone tell > me what exactly these are? These three chips comprise the Mot. 88000 processor at 25 Mhz. Paxton

26 years, 3 months

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Somewhat OT: Then & Now.

by dogas＠leading.net

...back then we had just enough ram to get the job done, today we have enough ram to run solitare instead of getting the job done... ;)

26 years, 3 months

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Things that make you sick!

by jeff.kaneko＠juno.com

That's the ill-fated 88000 chipset by Motorola. It was Moto's only entry into the then-new RISC processor market. The AViiON is one of a handfull of machines developed to use the 88000. The three chips collectively make up a CPU: the two 88200's are cache/mmu, and the 88100 is the actual CPU itself. The 88000 was way cool, on account of it was one of the earliest RISC CPU's that was designed specifically to operate in parallel. This processor family was doomed when Moto sold it's soul to IBM and Apple and produced the PowerPC (it did this, but only after Moto shot itself in the foot, yet again). Anyways, the AViiON ran DG-UX, (a unix subspecies), and were fairly cool in their day. They can be had *very* cheaply; I seriously doubt many will survive. . . While not yet 10 years old, I think it qualifies as 'classic' (well, they're cheap enough so I can afford to purchase them; that's good enough for me!!!) :^) Jeff On Fri, 21 Apr 2000 22:45:15 -0500 Joe <rigdonj(a)intellistar.net> writes: > Mike and I went to one place today and found the remains of a Data > General > Aiivion (sp?) in the scrap metal pile. We had gotten there too late > to > save it. :-( I did get the CPU module out of it. It has three large > ICs on > it. Two are XC88200RC25B s and the other is a MC88100RC25. Can > anyone tell > me what exactly these are? > > > Joe > ________________________________________________________________ YOU'RE PAYING TOO MUCH FOR THE INTERNET! Juno now offers FREE Internet Access! Try it today - there's no risk! For your FREE software, visit: http://dl.www.juno.com/get/tagj.

26 years, 3 months

1
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Intel i960 evaluation board

by allisonp＠world.std.com

>Perhaps you're thinking of the 8096. The i960 has no architectural or Thats the beastie. >The 8089 was not particularly intended for embedded applications; it was >supposed to be a channel controller, i.e., a smart DMA controller able I know it well. I have a few of them. Actually it does make a fair embeeded controller if your not doing much math. >The only thing 20-bit about the 8089 is the address, but at least it was >a flat 20-bit space unlike that of the 8086. And the alu was 20 bits wide too. The GA, GB and GC register beiseds holding address information also were usable as accumulators. Simple part to program save for the lack of tools. I tried it for a channel controller for s100. Parts overhead to use it was on the high side do the the bus state encoding. Allison

26 years, 3 months

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VCF Europa & My Appearance at Oxford

by dastar＠siconic.com

VCF 1.0e is about a week away and plans are rolling right along. It should prove to be a smashing event. My German lessons are progressing nicely and I can now ask for beer in German and get directions to the nearest toilet. Next week I hope to be able to apologize in German for vomiting on your shoes. In case this isn't making sense to you, I made a deal with Hans that if he did the VCF for Europe I would learn German and give a 45 minute talk in German. My talk will deal with the Inca Quipu, a mnemonic device made of cloth that the ancient Inca's used to record things such as their crop counts, population, etc. I'm also giving a talk at Oxford (that would be in England :) at the Institute of Archaeology, 36 Beaumont St, Oxford at 5pm on Thursday, May 4th. My talk will deal with this whole computer collecting craze and what people like us are doing to preserve the history of computing. I may also give a follow-up talk the next day (that would be Friday, May 5th) at the Computer Centre on Banbury Road. That talk is still tentative but I'll post a follow-up when the time is worked out. I'll be in Oxford from Thursday, May 4th, until Saturday morning, May 6th. I would love to meet any Englanders from the list so if you can make it to the talk I'd be delighted. We can go get one of those big, tall beers at a local pub afterwards. They're called a yard right? Shouldn't that be 0.9144 meters now since you're on the metric system? At any rate, we'll quaff some alcoholic beverages and then go harass pretty young ladies. If anyone would like to contact me about anything please send all queries to sellam(a)vintage.org. I look forward to meeting many of my European counterparts! Sellam International Man of Intrigue and Danger ------------------------------------------------------------------------------- Looking for a six in a pile of nines... VCF Europe: April 29th & 30th, Munich, Germany VCF Los Angeles: Summer 2000 (*TENTATIVE*) VCF East: Planning in Progress See http://www.vintage.org for details!

26 years, 3 months

9
8
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Univac 1540 Front Panalege!

by dogas＠leading.net

I had a great time trekking all over north and central Florida today with Joe and we both found alot of new toys. I think I mentioned seeing a Univac 1540 here on the list a while back and today (soon) before it is to fall into the metal shredder of oblivion, I *liberated* his front panels! Check out: http://users.leading.net/~dogas/classiccmp/univac/univac.htm There are several bends in the metal and I'm considering taking them to a car body shop to see if it can be straightened out unless anyone has a better idea... A happy and tired... - Mike: dogas(a)leading.net

26 years, 3 months

1
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Progress on NEC APC (fwd)

by elvey＠hal.com

>>>>> Forwarded message from Don Maslin <donm(a)cts.com> On Fri, 21 Apr 2000, Fred Cisin (XenoSoft) wrote: > On Fri, 21 Apr 2000, Don Maslin wrote: > > > what the CP/M-86 would see on the MS-DOS format. > > It gives you a big fat error message. > > In THIS case, due to sector size differences. But not ALWAYS. I have > seen non-CP/M disks with E5 where a CP/M directory would have been. I don't recall running across that, but I'll be alert now. > MS-DOS will give a big FAT :-) error message when trying to read CP/M > (actually "Probable Non-DOS disk") because it is picky about what it > expects to see in the F.A.T. Agreed. > Due to reserved tracks, on 8" double density, CP/M's DIRectory will > fall AFTER the end of the MS-DOS directory, where the first file would > otherwise be likely to be. You're right that that would almost certainly > be content that would choke CP/M. But with very short files and large > clusters, and with sector interleave, it is entirely possible to have CP/M > looking at unused sectors. Possible, but... > Both MS-DOS and CP/M will accept and assume "empty" when encountering > a DIRectory (not the MS-DOS F.A.T.) sector of all E5. MOST MS-DOS formats > fill the empty directory sectors with 00, but not all. Some use E5, some > F6 with E5 every 32 bytes, ... What would CP/M-86 report for a directory Rather like a CP/M directory that had its files deleted :) > sector of all 00? An MS-DOS format with a large directory could easily > leave the END of the MS-DOS directory sectors where the first of the CP/M > directory sectors would be. Agreed. I'll have to try the 00 bit and see what does actually happen. I'll let you know. > I don't often see use of USER in CP/M disks. Sometimes, but not often. I > think that it is more likely that they gave Sellam blank formatted > diskettes. I wouldn't argue that. On the other hand, it would be prudent to check. If he would mail one or more of the disks to me, I could examine them and probably provide an answer. - don << End forwarded message

26 years, 3 months

1
0
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PDP flip-chips

by mcguire＠neurotica.com

On April 21, healyzh(a)aracnet.com wrote: > > Ok, can someone explain why flip-chips keep selling for serious cash on > > Ebay? I thought one thing people liked about flip-chips was how easy > > they are to repair, ie, they are typicaly either transistor/resistor/diode > > circuits, or possibly even simpler circuits implemented with very basic > > IC's... > > My guess is that unless they're someone on this list they're being used as > ornaments :^( I picked up a couple lots about a year ago when they were > going for less than they do now. What's disgusting is seeing a single > flip-chip that's fairly common goign for big bucks. I think "common" is a matter of geography. Now, flip chips are much easier to ship than big BA11 chassis, but...I've been looking for a simple, run-of-the-mill pdp11/34a system around here (Maryland, DC area) for the better part of two years...no dice...and many people say the 11/34 is one of the most common DEC machines around. I think some sort of central "clearing house" might help...we all have projects involving machines that need one component or another. Many of us will ask our local friends, then post to lists like this one, etc., and often the results are good...but sometimes not. I'm just thinking aloud here; this is a half-baked idea...maybe some sort of web server with long-term lists of stuff we all have available on the trading block, and maybe wish lists as well. Something to facilitate better communications amongst folks like us that don't necessarily know each other. Any thoughts? -Dave McGuire

26 years, 3 months

2
1
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Progress on NEC APC

by allisonp＠world.std.com

> Does CP/M-86 have a direct call to read a sector like >CP/M-2.2 does? If so, it wouldn't take much code >to make a sector viewer. >Dwight The jump table for the first 17 bios calls or so are as identical as you can ask for considering some of the CPU differences. The key ones are: seldisk settrack setsector setdma read write Allison

26 years, 3 months

1
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Biin Box, was 960 / 860 Board

by Innfogra＠aol.com

The BIIN Computer was not a workstation. It was a fault tolerant transaction processing machine of the late 1980s. It was to compete against Tandon and IBM. The plans were to build 100 machines and put them out for trial and then ramp up for production. It used a variant of the i860 with multiple processors and 64 or 128 Megs of ram, a 300 Meg HD for SW and mirrored IPI drives for data. Nice computer with the entire chassis made to very high German standards in Germany and airfreighted to here (Portland, OR). Unfortunately we had a contract to dismantle and destroy all the machines returned to intel after they closed down. Intel pulled all of the processor chips before they even got to us. A very interesting machine, the chassis took four hours to strip by our most experienced person. For intel, Siemens was impossible to deal with, talk about a culture clash. They were happy to see the project end. Intel had 5 or 10% with Siemens the rest. When it became apparent that it was going to cost a huge amount of money to compete, the BIIN Company was offered for sale and then shut down and liquidated. I have the original nail board for the BIIN Processor Card with all of it's original documentation. If anyone out there is interested please contact me off line at whoagiii(a)aol.com. I got the nail bed in another sale that was not covered under the contract. Paxton

26 years, 3 months

2
1
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Meet at VCFE

by jpl15＠netcom.com

I will also be inflicting myself on VCFE; I will be arriving in Munchen Thurs morning and returning Monday; it will be a Big Fun to meet anyone from the List who will be there. Cheers John PS: a 'picture' of me is on the VCF 3.0 website... I exhibited the Heathkit Large Analogue Computer, and was unfortunately too close to it when Sellam took the photo. :( So you can figure out who I am without having to decode eine NamenTag.

26 years, 3 months

1
0
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PDP flip-chips

by lemay＠cs.umn.edu

Ok, can someone explain why flip-chips keep selling for serious cash on Ebay? I thought one thing people liked about flip-chips was how easy they are to repair, ie, they are typicaly either transistor/resistor/diode circuits, or possibly even simpler circuits implemented with very basic IC's... If someone is looking for a particular flip chip, and is willing to trade some PDP8/E interface board for it, or something else PDP8 related, just let me know. I picked up a bunch of flip chips reciently, i was planning to use them in a display someday (ie, rows of flip chips plugged into wire-wrapped backplanes). -Lawrence LeMay lemay(a)cs.umn.edu

26 years, 3 months

5
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VCF Europa & My Appearance at Oxford

by foxvideo＠wincom.net

At 12:39 PM 4/21/2000 -0700, you wrote: >On Fri, 21 Apr 2000, Sellam Ismail wrote: >> VCF 1.0e is about a week away and plans are rolling right along. It > >Better take along a LOT of visual aids (slides, overhead foils, etc.) If >that's the extent of your German, then 45 minutes is going to call for a >LOT of beer drinking, toilet visiting, and vomiting! >Maybe you should have Hans translate, or rely on their knowing some >English. > >> I'm also giving a talk at Oxford (that would be in England :) at the > >So you're going to have to learn British, also. Remember that we are two >peoples divided by a common language. > >-- >Grumpy Ol' Fred cisin(a)xenosoft.com > You know what Professor Higgens said, "In America they haven't spoken it in years!" Maybe Sam could get Tony to translate. Cheers Charlie Fox Charles E. Fox Chas E. Fox Video Productions 793 Argyle Rd. Windsor N8Y 3J8 Ont. Canada email foxvideo(a)wincom.net Homepage http://www.wincom.net/foxvideo Check out "The Old Walkerville Virtual Museum" at http://www.skyboom.com/foxvideo --works best with I.E.5

26 years, 3 months

1
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Intel i960 evaluation board

by rigdonj＠intellistar.net

I just picked up three of the Intel EV80960SX evaluation boards. They're evaluation boards for the Intel 80960 processors. There's a picture of one at "www.intellistar.net/~rigdonj/misc/int80960.jpg". Does anyone have the specs or any docs for them? Joe

26 years, 3 months

4
4
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Commodore Web Browsers

by ethan_dicks＠yahoo.com

--- ks <ks(a)coastalnet.com> wrote: > Cameron Kaiser wrote: > > > > Well, for those of you following HyperLink 2.5, the web browser I'm working > > on for the C64, as of this morning I was able to surf Yahoo at 26.4 kbps > > with a PC 28.8 modem and an ACIA cartridge. > > > Cameron what is an ACIA cartridge? I know what one is but not where to get one. The ACIA is a particular variety of UART. IIRC, it stands for Advanced Communications Interface Adapter or something similar. Should be a variant of 6550 chip in there. Since I have a small drawer of 6550s (stripped from some 1970s 6502-based dumb terminals), I'm wondering if there are plans on the net (ftp.funet.fi?) to build one. I happen to already have an IDE interface for the C-64 (and a 1.3" KittyHawk drive to go with it); I'd love to stick a browser on there and go. If possible, I'd probably try to retrofit an ACIA to a recycled C-64 game cart with some creative wiring. Presumably at low speeds, DMA is not required. As they say, it's not how well the bear dances, but that the bear can dance at all. Great Job, Cameron! Let me know if it's possible to homebrew a serial interface that's compatible with what you are working on. -ethan ===== Even though my old e-mail address is no longer going to vanish, please note my new public address: erd(a)iname.com The original webpage address is still going away. The permanent home is: http://penguincentral.com/ See http://ohio.voyager.net/ for details. __________________________________________________ Do You Yahoo!? Send online invitations with Yahoo! Invites. http://invites.yahoo.com

26 years, 3 months

2
1
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Commodore Web Browsers

by ckaiser＠oa.ptloma.edu

Well, for those of you following HyperLink 2.5, the web browser I'm working on for the C64, as of this morning I was able to surf Yahoo at 26.4 kbps with a PC 28.8 modem and an ACIA cartridge. And a few other sites too, which reminds me that Sam Ismail needs to put some ALT tags on those images on the VCF site. ;-) -- ----------------------------- personal page: http://www.armory.com/~spectre/ -- Cameron Kaiser * Point Loma Nazarene University * ckaiser(a)ptloma.edu -- Really???? WOW!!!!! I'm shallow TOO!!!!! -----------------------------------

26 years, 3 months

4
3
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RD45 question

by wrking＠tsoft.com

I know this has been discussed before, but I can't find the info. I just aquired a Maxtor 2190 disk drive that I want to convert into a DEC RD54. I know about formatting it under XXDP, but I remember that a jumper had to be changed on the drive. Can anyone help me out here? Thanks, Bill King

26 years, 3 months

7
7
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SCO drops fee for Ancient Unix License

by eric＠brouhaha.com

In a press release dated April 18, 2000, SCO has announced that they have dropped the $100 processing fee for an "Ancient" Unix License: http://www.sco.com/press/releases/2000/6927.html They say that it will be possible to download code directly from their site. As far as I can tell, they haven't yet made it available. Once one has an Ancient Unix License, one can also get other Unix code derived from Unix editions through 7th Edition, and 32V, from PUPS, the PDP Unix Preservation Society: http://minnie.cs.adfa.edu.au/PUPS/ And Marshall Kirk McKusick's CSRG Archive CD-ROM set (four discs, $99.00), which contains all of the BSD releases: http://www.mckusick.com/csrg/index.html

26 years, 3 months

2
1
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Doesn't this just make you sick! Altair

by rigdonj＠intellistar.net

Hi All, A couple of years ago I picked up a second Altair. It was missing all the cards except for a Godbout active terminator card and is missing the top case. While working on it a couple of weeks ago I found a previous owner's name in it. It recognized the name, it was a guy that I worked with for many years at Martin Marietta. After some searching, I finally tracked him down and asked him about the Altair. Here's his reply: > >My EXwife 'disposed' of a fair amount of my equipment a few years back. (She didn't pay the payments on the storage locked so the stuff was trashed. ed) > The >Altair was in perfect shape, worked, had all of the cards and was attached >to a Hazeltine1500 CRT. It had a couple of 8 inch floppy drives and a CDC >Hawk 5x5 hard disk drive that fit a 19E rack. If I remember correctly, the >Altair was serial 28. It wasn't a kit but was a production (one of the >first off the line) model. > >Interesting how things happen??? BTW, I still live in Orlando. The number >you gave was my work phone number when I was still working for Lockheed up >in Ocala. I commuted each day from Orlando...got old and just about wore my >car out. > >Nice hearing from you after all this time. > >Richard > Somehow a scrapper ended up with it. He evidently pulled the cards for their scrap value. Then he sold the chassis at a hamfest. Another ex-Martin employee bought it and years later I bought it from him. Does anyone have a top case that they'll part with? My first Altair is nearly complete but I still need the MITs floppy drive controller cards. Does anyone have a set that they'll sell or trade? I have an original MITs floppy drive and original MITs disks so I only need the controller cards to make it operational. Joe

26 years, 3 months

1
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New finds

by peter＠joules0.demon.co.uk

They are having a clearout at work :). Due to the disposals policy and procedures all of this stuff isn't considered worth putting through the disposals procedure and being sold/given away and so must go in the skip. However they are prepared to lend it to me on indefinite loan on the condition that I return it so that they can throw it in the skip if I leave. The best find, in my opinion, is a Samsung S5200 luggable with all docs and the original system floppies. From the documentation it is a 286 with 2MB RAM and 32MB SCSI hard drive. The only problem is that it has a PSU fault - when I turn it on there is no life at all. I didn't bring it home tonight as I was on the bike and it was raining but I will collect the complete haul on Tuesday so I will be asking for help diagnosing this fault. I have opened it up and the PSU contains no ICs so it is the sort of thing I might have a chance of working on. Also in the haul is Windows 2, Windows/286, Windows 3, DOS versions 3.1, 3.2, 4, 5, and 6.22, DR-DOS 5, OS/2, DBase versions 2 and 4, Turbo C++ V3, Zortech C, Wordstar 3, and 6 along with WordStar for Windoze, SuperCalc versions 4, 5 and 5.1, DataEase, TAS + and Professional, and much more on 5.25 and 8" disks which I haven't had time to catalogue yet. There is even a full box of 10 brand new 8" disks. I also have a Dragon 32 and may get an RM NB300 laptop if I am lucky. There is also an original IBM PC/AT and a Wyse SCSI DAT drive. A lot of the software is complete with original docs and some is shrink wrapped. Can't wait to play with it all ;-) -- Regards Pete

26 years, 3 months

1
0
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DB25 to RJ-45 Adapters

by wilson＠dbit.dbit.com

On Thu, Apr 20, 2000 at 04:25:28PM +0000, bpechter(a)mail.monmouth.com wrote: > I thought RJ45's are 8 pin maximum -- but I may be wrong. The 10-pin ones are rare, but they do exist, Altex sells the cables/connectors and Digikey has the sockets. With the usual RS232 pinning, the "RI" signal is on one of the outer two pins, so the more common 8-pin RJ45s will lose it, I know some people who have been burned by that. So that's why I care... John Wilson D Bit

26 years, 3 months

1
0
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Time to thin out the collection

by nerdware＠laidbak.com

Hello, boys and girls. I've come to the realization that I have too much stuff. I'm building a small Mac-based production studio in my basement so I can start do theatrical sound effects in my spare time, and I'd like to finally get started on the model rr layout. Unfortunately, due to the stupid laws of physics, I only have a fixed amount of space to do all this in. I looked over all the shelves, and realized that I have been given many machines that I'm really not interested in keeping, so therefore I'm thinning the herd down to the key pieces. I'll put together a list over the upcoming weekend if anyone's interested, but since most of what I'm getting rid of is big stuff (big in the desktop/laptop sort of world, not big as in the "I've got a roomful of PDP stuff" sense......) so I'd like to not have to ship it. If you're in the NW Indiana/Chicago region and might be interested in some older IBM stuff, some Kaypro II's, and other miscellany, please email me off-list and I'll get back to you as soon as I can. I'll be tied up most of this week, but I'll try to answer quickly. I'd hate to just scrap this stuff, as I'm sure someone can make use of it. I just plain ran out of room and would like to have part of my basement back..... Thanks. Paul Braun NerdWare -- The History of the PC and the Nerds who brought it to you. nerdware(a)laidbak.com www.laidbak.com/nerdware

26 years, 3 months

2
1
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Rover I portable: Does it exist?

by netsurfer_x1＠hotmail.com

I recently read about an intresting old portable (luggable?) called the Rover I. This is an intresting machine because instead of using floppy drives like most portables, it uses wafertape drives (now *there's* a storage system that never really took off, but I have heard that they were reasonably popular on TRaSh-80's.) My question: What is it? Does it exist? Was it ever released? ____________________________________________________________ David Vohs, Digital Archaeologist & Computer Historian. Computer Collection: "Triumph": Commodore 64C, 1802, 1541, FSD-1, GeoRAM 512, Okimate 20. "Leela": Macintosh 128 (Plus upgrade), Nova SCSI HDD, Imagewriter II. "Delorean": TI-99/4A. "Monolith": Apple Macintosh Portable. "Spectrum": Tandy Color Computer 3. "Boombox": Sharp PC-7000. ____________________________________________________________ ______________________________________________________ Get Your Private, Free Email at http://www.hotmail.com

26 years, 3 months

4
3
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8I and KA10 bulbs

by djg＠drs-esg.com

>From previous usenet posting: The bulbs look like the 8 bulbs, they can still be purchased from DEC 12-09169-00 LAMP, 15V @ .040AMP MAX, .075 $2.00 See web page http://www.digital.com/info/DAS-Catalog/dassearch.htm http://x35.deja.com/getdoc.xp?AN=534721209&CONTEXT=956232079.1091174408&hit… On the 8/I I think the serial # is on the back of the frame, one has two plates M26 8I L3221 and M26 8I SYS3194, which is the newer of the machine, it also has a DEC looking piece of paper glued to the bottom of the frame below the wirewrap dated 3/28/72. This is a negibus also. Plates labeled M26 8I L3221 and M26 8I SYS3194. This one has chips 69-72. The older? is M-2 L-927. It has a bunch of blue and other color wires which I assume are ECO's or options added later. It doesn't have any of the option plates on the top of the frame. The one above only has a few. Most of it's chips are 68, it has some of the blue Sprague chips. Sorry, only have the one copy of 8/I manuals that I scanned. David Gesswein

26 years, 3 months

1
0
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Dec help (again)

by dogas＠leading.net

After looking around on the net for a Dec MMJ terminal cable and finding conflicting sources for their pinouts, I figured it would be just easier to drive the 225mi round trip to dig around again int my favorite scrapper's junk piles... As luck would have it, I did find 4 of the cables and two RJ?? to db25 adapters. So... I speed home and hook up a few of the VaxStation 3100's for a virgin spin via the(MMJ) console and get: KA43-A V1.3 F...E...D...C...B...A...9...8...7...6...5...4...3_...2_...1?... ? C 0080 0000.40001 ?? 1 00C0 0000.7004 >>> I'm guessing this is a memory or media fault but I'm not sure... Anyone? Also, I finally opened rack #4 of the 11/44 system http://users.leading.net/~dogas/classiccmp/digital/pdp1144.htm ) I picked up that was supposedly empty... And inside is a SC008 Star Coupler and User Manual! A little happy dance ensued, of course, but I thought these things were just for vax clusters. Can a 44 be a node along side MicroVAXen ??? I also found a reference on the web http://www.tapr.org/tapr/html/internethistory/slide10.html ) that asserts that tcp was first written for a 44 too, is that true? Sorry for all the dec boneheadedness. Thanks - Mike: dogas(a)leading.net

26 years, 3 months

3
3
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Dec help (again)

by sms＠antinode.org

"Mike": > ? C 0080 0000.40001 > ?? 1 00C0 0000.7004 > [...] > I'm guessing this is a memory or media fault but I'm not sure... Anyone? Nope. "C" refers to the serial ports, "?" probably because you don't have a keyboard or mouse connected. "1" is the Ethernet port, with "0000.7004" saying that it's in the BNC mode, and nothing's connected. Only the "??" will stop it from trying to boot automatically. Connect a BNC "T" with a pair of 50-ohm terminators to eliminate this complaint. No one cares about the other one. See, for example, "http://www.antinode.org/dec/vs3100_diag.html" (and its friends) for more details. (Most of the VAXstation 2000 diagnostics info applies to the 3100 series, too.) Try "TEST 50" and "SHOW DEVICE" for more and better info. I haven't tried it, but I'd bet a quarter that an AltaVista or Deja search for 0000.7004 would tell you more than you might expect. This may be _the_ most common/problem question on these things. ------------------------------------------------------------------------ Steven M. Schweda (+1) 651-699-9818 (voice, home) 382 South Warwick Street (+1) 763-781-0308 (voice, work) Saint Paul MN 55105-2547 (+1) 763-781-0309 (facsimile, work) sms(a)antinode.org sms(a)provis.com (work)

26 years, 3 months

1
0
0 0

Rover I portable: Does it exist?

by SUPRDAVE＠aol.com

In a message dated 4/19/00 7:03:03 PM Eastern Daylight Time, netsurfer_x1(a)hotmail.com writes: > I recently read about an intresting old portable (luggable?) called the > Rover I. This is an intresting machine because instead of using floppy > drives like most portables, it uses wafertape drives (now *there's* a > storage system that never really took off, but I have heard that they were > reasonably popular on TRaSh-80's.) wafertape - you mean stringy floppy? i have an exatron stringy floppy drive with my trs80 model 1. no tapes though. anyone have any? a guy i worked with has a stringy floppy drive with his model 1 and he said it was much better than cassette tape. i think it was random access type device too. i think he said you could store ~100k per wafertape. really looks like fishing line in a little tape case. DB Young ICQ: 29427634 view the computers of yesteryear at http://members.aol.com/suprdave/classiccmp/museum.htm --You can lead a whore to Vassar, but you can't make her think--

26 years, 3 months

1
0
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Drums

by xds_sigma7＠hotmail.com

Hi, I think I heard somewhere that magnetic drums are somewhat like core memory, i.e. they retain their contents when shut off... I believe I read this in the IBM 704 manual, so I'm not entirely certain that facts about those drums (8192 36-bit words!) can really be applied to the drums I'm going to be getting, which are from Vermont Research and are approximately 256K or so.. Also, does anyone know what other computer companies used drums from Vermont Research? They're for my Interdata 7/32, but I know at least Varian used Vermont Research drums... any others? Will J ______________________________________________________ Get Your Private, Free Email at http://www.hotmail.com

26 years, 3 months

11
13
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8-bit IDE

by allisonp＠world.std.com

>Boggles the mind, doesn't it? I remember that I paid $1250 for the first >ST506 I bought. It even said Shugart Technology rather than Seagate >Technology . That was 5 MB. Managed to get my St506 in mid 81 for much less than half that. connections. >Well, if you're willing to believe that what's in the timing diagrams, after >you see they clearly violate other spec's, you can do that. I prefer to >latch the data to ensure that I have it. Likewise, whether I have to write >two locations or the same one twice, the data has to be latched. You also Didnt' say you didn't need the latch only you didnt need an extra FF to track the silo status. >'646..'654 type device, which won't work the way that's needed because >they're edge-triggered, you'll run up the parts count. After all, you have >to latch the low byte on writes and the high byte on reads. I think saving What about 573s? Thats what I used. though the proto used ls373s. >parts by leaving out functionality is risky here. If you write the high >byte to the latch first, then write the low byte AND high byte, in a single >unlatched write for the low byte, it may work, but now you can't use those >handy instructions that make the Z-80 handier than the 8080/8085. Well true, but then I don't always use z80. one version happens to use a 8749 with a 8155 and 8251 to serialize the data for a low speed net. I only said I didnt' require the FF to track the data, not that it would allow INIR. >IMHO, once you have more than two components you have to look at >programmable logic. I'm convinced that a CPLD, a small one, in fact, is the >correct solution here, except in the case of an 8-bit capable drive, in >which case no logic at all is needed, beyond what's already there. I have 2064s and 3030s but those packages are a real pain to wirewrap. Then I ahve to balast a erpm with the pattern and wire that too. No savings in wiring. For a PC card, yep, the only way. >Yes, it's been done, and if I'm going to do the 16-bit interface, I'm going >to do it with what's essentially their code. That means a pretty similar >interface, which, by the way, is pretty minimal. It does latch both bytes >of the data at the port. Still no need to do that. you only latch the data you cant transfer immediately. Saves one latch though you could use it for a gated buffer if you wanted to. >What matters to me more than making the extended versions of CP/M work, is >making the REAL CP/M work. Been there done that. It's easy enough, I have working examples. the problem is with 8mb logical disks I tend to fill them and ploughing through 1000+ files is a real pita to look at on the tube and slower than sludge cpu time wise. Keep in mind I've been running CP/M since 1.4 was new. I have over 12 systems in the room that are running CP/M now. maybe another 5 that would run save for they are on the shelf (run but, are in storage). Running systems CP/M more than half of which are running BIOS of my design and ZCPR3. Some have mods to CPM like banked BIOS: * means it's anything but stock and is a production use machine. * hurikon MLZ92 Multibus CPM 2.2, banked. * ISC8010 (modded) with NEC BP575 and BP2190 (two of them) running banked with 3.5" floppies. (another multibus crate) NS* horizon (restored, dual MDS-A) running Lifeboat CP/M 1.4 * NS* horizon with expansions and my own controllers runnign banked ZCPR/SUPRBDOS/bios (CP/M2.2 compatable with extensions). Current controller has 71mb (RD53). Controller is WD1002WXS with Z80 frontend to the bus. this crate is 22years old and nothing near stock. NS* Advantage (restoring), 15mb CCS and floppy CP/M2.2 in 128k Has a unique bios that attaches the NS hard disk DOS tot he cpm file system allowing definable partitions. * CCS runing their version and also a version of 2.2 I assembled for Compupro Controller (disk 1A).. DEC vt180 (in Vt100) stock * DEC VT180 (standalone, modded) running CP/M 2.2 from romdisk. used as testbed for IDE, bubble memory. Runs at 6mhz (z80). * AmproLB (scsi fujitsu 45mb) no mods other than cmos and it's production. * Kaypro with Advent TURBOrom, 1 360k 5.25 and two 781k 3.5" floppies plus 2mb ramdisk. Visual 1050 ( restored 128k CP/M 3) with dual 5.25 96tpi 781k, 20mb Xebec controller. * Visual 1050 (modded, IDE 120mb). Banked bios CP/M2.2 * Compupro crate, NS* z80 cpu with MMU added 256k ram, Disk -1a controller and IDE (85mb). * Epson PX-8, with 120mb wedge CPM2.2 from rom. My laptop. Allison

26 years, 3 months

3
6
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8-bit IDE

by allisonp＠world.std.com

>drive work. I'm interested in the ones too small to bring even $10 at the >flea market, i.e. the ones that are 10x what I need but only cost $6 or so. Ok that ranges up to maybe 500mb now. >It takes more than a latch, by the way, since you have to latch and hold the >low byte on writes, and the high byte on reads, in order not to screw up the >order of the bytes. Consequently, you need not only the two latches, but a >bit of logic to effect the byte steering on reads and to perform the write >after the CPU does the write, since the only time you can guarantee data >valid is at the very end of the write strobe. Limited logic, one latch. No rule said only one address for the data read or write. >The reason I'm whoring after the few drives with this feature included is >that when this feature was available, if at all, the popular drives were of >about the "right" capacity for the typical application of CP/M. Of course when the IMSAI and Altair were around that would be casette tape, 8" floppy (SSSD 256k) or maybe minifloppy (80k). Better find two as likely they will be so old that any reliability has been run out of them. The nice part of a real 16bit interface is if it fails any drive make a good replacement even if I dont choose to use all of it. that and despite the claim that 8080 and cpm was slow they do run better with fast drives and ramdisks proved that. So a fast drive (13-15ms or so, 4500rpm) with a cache of say 32-256k does indeed improve perfomance. Since IDE has been done for CPM (several articles in TCJ) and SCSI even longer the idea of the right size is really a red herring to me. In the CPM world the right size was literally whatever you had or could get you hands on, the bigger the better. Even the deblocking example in the CP/M-2.0 alteration guide they talk about how taking advantage of it enabled a 35mb drive to be formatted using larger sectors to 57mb with better perfomance. that was written in 1981. The concept was the abiltiy to interface to almost any storage hardware via an extensable BIOS. My current project is to take CP/M V2.2 and capitalize on P2DOS (suprbdos, novados, Zrdos etal) clones and add a heirarchal directory to get past the former flat structure (user areas helped only a little) and stay compatable with apps that ran under V2.2. After all I want is better and not obsolete perfectly good software. Allison

26 years, 3 months

3
4
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no chars on uVAX console

by sipke＠wxs.nl

----- Original Message ----- From: <sms(a)antinode.org> To: <SIPKE(a)wxs.nl> Sent: Saturday, April 08, 2000 6:27 PM Subject: no chars on uVAX console > Is that the speed selected by the rotary switch on the console > bulkhead? Yep I've removed all boards save the memory boards (2*M7609) and the CPU (M7606-AA) Now I get characters (XON/OFF = on) and the bootprocess continues until char 3 I've tried to put some of the boards back but I am not sure if I have a missing board. Het boards were arranged as follows slot 1 ----------------M 7606------------------ slot 2 ----------------M 7609------------------ slot 3 ----------------M 7609------------------ slot 4 -----M7516-------- (empty) slot 5 -----M7555-------- ------M7546------ slot 6 (empty) ---Dilog sq703a--- The uVAX used to contain a Serial concentrator or something like it but that was removed, propably from one of the empty slot positions. I've gathered that the first 4 slots are different from the rest of the BA123, those beeing true Qbus 22 slots. Should I rearrange the boards ? If so what do you suggest? Sipke de Wal

26 years, 3 months

2
1
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CPU upgrades, pt. II

by mgregory＠vantageresearch.com

-----Original Message----- From: Peter Pachla <peter.pachla(a)wintermute.org.uk> To: classiccmp(a)classiccmp.org <classiccmp(a)classiccmp.org> Date: Monday, April 17, 2000 5:09 PM Subject: Re: CPU upgrades, pt. II >Hi, > > > Heres a PS2/50z question. > > > > Mine only has 1meg, looks like 72pin simm but none I have seem > >work. All of them happen to be 8x32 (16chip). > >I don't really know too much about PS/2s yet, I'm only just starting to >investigate these machines (I've got 3 - a Model 50, a Model 80 and a Model >95). Ah, the model 95! The Ardent Tool of Capitalism itself! Makes a lovely file server when running OS/2 or an old copy of NT 3.5. The machine is indestructible, there's more than enough power and room for 3 or 4 modern SCSI drives, and plenty of slots for a LANstreamer or two. If you don't already have them, I'd suggest upgrading to a Type 4 (Pentium 60 or 66) complex, and an IBM Fast/Wide SCSI controller. Alternatively, many of the older complexes can take Evergreen or other upgrade CPUs, with the suitable interposer. The only downside of PS/2s these days is that 100 Meg Ethernet cards for MCA are very hard to find. You'll grow to love that Model 95 - I plan to have mine used as my headstone when the time comes : v ) Cheers, Mark

26 years, 3 months

5
6
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light bulbs for DEC front panels

by eric＠brouhaha.com

Does anyone have information on light bulbs for DEC front panels circa 1968, in particular from a KA10 panel? The bulbs in question have two metal pins. Some bear the legend "OL-1", and others have two rows of info, "PL10161" on above "1209169". There's temporarily a photo of one, next to a US penny for scale, at http://www.36bit.org/dec/bulb.jpg Would these be the same bulbs used on the PDP-8, PDP-8/I, or PDP-8/e? I'd like to get a manufacturer and part number of a currently available replacement. Or a source of old stock. I've been told that there were also plug-compatible LED lamps in red and green. These obviously must have contained a series current limiting resistor. Any info? Thanks! Eric

26 years, 3 months

2
1
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light bulbs for DEC front panels

by CLASSICCMP＠trailing-edge.com

>Does anyone have information on light bulbs for DEC front panels >circa 1968, in particular from a KA10 panel? >I've been told that there were also plug-compatible LED lamps in red and >green. These obviously must have contained a series current limiting >resistor. Any info? If they're anything like the -8 front panels, there is also a "warming" current through the bulb. The aftermarket LED "upgrades" either had you snip the resistors that kept the prelight current flowing on the front panel drivers, or (more classy) they had divider networks in addition to current limiting to make sure the warming current didn't appreciably light the LED. It was about three years ago I posted an analysis of the divider method to alt.sys.pdp8. I'd be glad to dredge up those calculations here if there is any interest. The divider method is a little more complicated to solder up, but it's easier to go back to real light bulbs if/when you decide to go back to the "completely original" look. Tim.

26 years, 3 months

1
0
0 0

8-bit IDE

by allisonp＠world.std.com

From: Richard Erlacher <edick(a)idcomm.com> >I've never seen a CompuPro ANYTHING I liked. However, there's no >accounting for taste. Well the basic box with terminated mother board cant have ben that bad since it was widely copied. >You mustn't forget, BTW, that I'm not a collector, except in the sense that >I haven't thrown some things away because I remember what they cost me. I never said I was. Some of my sysstems are working systems because I bought them 20+ years ago to do exactly that, work. Improving them is reasonable in that context. The reast are collected because I wanted one back when and could never afford it. Now I get to play with it. >Of course, I have a real bunch of Multibus-1 stuff because it was always up >to the mark. I have MB1 and MBII systems as well plus boards made by my former (four lifetimes ago) for MB as well. Nice stuff, big, sophisticated often very fast or very slow. Allison

26 years, 3 months

1
0
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8-bit IDE

by allisonp＠world.std.com

> "Has anyone got sufficient experience with the IDE in non-PC-compatible >applications to say, unequivocally, whether the 8-bit operating mode >described in section 6 of the standard for the ATA (IDE) interface, yes >SPELLED OUT, actually exists in drives of the pre-1996 vintage?" It was >dropped from the standard in 1996. There seem to be many folks with >suggestions about how to implement this extremely elementary interface. >There seem to be few who know whether the standard was every full >implemented. Why would they include that? NONE of the PC hardware they were intended for wants to run as 8bit bus. Even the crippled SL/SLC run as 16bit busses. >Allison seems to be the only one who's tried this, and, I fear, it may be in >a PC-compatible, where all bets are off as to what really happens. Obviously visually impaired! I don't hack IO in PCs nor have I tried that yet. I may add why even bother, IDE works there as is. ALL of the IDE work I've done was with 8085, z80s either stand alone (bus less) or S100 Z80s. Further I'm currently working on a Z280 system with IDE (Zbus 16bit). This is where I need interfaces and so I can replace older MFM or non-existent hard disks. I currently have one S100 system running a connor3044A (40mb) IDE that will be upgraded to a ST3250 (250mb) as it's a better drive. The drives I've tried include: Connor 2022 Connor 3044 WD2120 WD2420 St3096A St3144A St3250A St3660 Fijitsu 528mb Quantum LPS 80 and 120 Maxtor 124mb and afew other sub 60mb WD, NEC, Seagate drives. I now have two 2.5mb IDE in the 700-800mb region I may try one day. I do have two WD PS/2m30 compatable 8bit IDE 20meg drives. I think this is a good cross section Allison > >Dick > >----- Original Message ----- >From: Mike Ford <mikeford(a)socal.rr.com> >To: <classiccmp(a)classiccmp.org> >Sent: Monday, April 17, 2000 7:22 PM >Subject: Re: 8-bit IDE > > >> I don't know a hoot about this, but I wonder if taking a look at the >> Sequential Systems Focus card for the Apple II might be instuctive. Its a >> controller and notebook IDE drive that all fits on a Apple II slot card. >> >> >

26 years, 3 months

6
20
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8-bit IDE

by edick＠idcomm.com

Recently, as part of my effort on an S-100 "hard-card" using a 2-1/2 inch ide drive, I've been revisiting the 1994 standard for the ATA interface. There's a not-too-detailed mention of an 8-bit mode which is set up using a bit in register. This feature was apparently obsoleted as of 1996's standard. Have any of you folks had contact with this feature as part of one or more of the standards? I know the original version of IDE as implemented on Compaq drives was 8-bits wide. However, once the ATA approach to HD interfacing became popular the 16-bit version won out. Has anyone on this list dealt directly (not through the BIOS) with 8-bit IDE drives of 2-1/2" size? ... Any size at all? Dick

26 years, 3 months

9
25
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IBM 3200

by ethan_dicks＠yahoo.com

--- "Merle K. Peirce" <at258(a)osfn.org> wrote: > > Actually, we got about 20 keyboards. It seems odd that the controller > has a floppy drive. What was the purpose? Software upgrades? Microcode, IIRC. -ethan ===== Even though my old e-mail address is no longer going to vanish, please note my new public address: erd(a)iname.com The original webpage address is still going away. The permanent home is: http://penguincentral.com/ See http://ohio.voyager.net/ for details. __________________________________________________ Do You Yahoo!? Send online invitations with Yahoo! Invites. http://invites.yahoo.com

26 years, 3 months

1
0
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Lubing Shugart 800,801's?

by ethan_dicks＠yahoo.com

--- Tony Duell <ard(a)p850ug1.demon.co.uk> wrote: > Yes, but if you remove the entire head positioner (including the guide > rails, etc) and put it back on _some_ drives you might have moved it > sideways slightly. This will affect the index timing (since the relative > position of head and index sensor have moved). > > Some drives have the guide rails fitting into V-grooves in the main > casting, and those generally you can take apart and put back without > problems. I recently restored a Mac PowerBook 160 that was apparently dropped before it made its way into my hands - the hard disk won't even spin up, several of the screw mounts were sheared in the lower case and the floppy guide rail had jumped its track entirely. The head was flopping around loose inside the drive. It took a bit of fiddling, but I remounted the guide rail and reassembled the drive - worked the first time. Now if only I had a 60-120Mb 2.5" SCSI drive to drop in this thing, I'd have a portable rig for dumping my QuickTake 150 digital camera. -ethan ===== Even though my old e-mail address is no longer going to vanish, please note my new public address: erd(a)iname.com The original webpage address is still going away. The permanent home is: http://penguincentral.com/ See http://ohio.voyager.net/ for details. __________________________________________________ Do You Yahoo!? Send online invitations with Yahoo! Invites. http://invites.yahoo.com

26 years, 3 months

5
7
0 0

wtd: cray el series

by stuart＠zen.co.uk

Hi, looking for a defunct cray el series, in the UK. Thanks, Stu Stuart Birchall ----------------------------------------- Network Consultant Zen Internet http://home.zen.co.uk Tel: 01706 713714 x 217

26 years, 3 months

1
0
0 0

8-bit IDE

by allisonp＠world.std.com

>This is described rather minimally in chapter 6 wherein the registers are >defined. There's an 8-bit enable bit which, when properly conditioned, will >cause the data port interface to transfer 512 bytes as bytes rather than as >256 words. There are LOTS of ways to "fake" it, but I'm trying to determine >whether anyone has actually operated an IDE interface normally used in >16-bit mode in this obscure and, possibly, scantily supported mode. If you find a drive that supports it let me know. I never did and I have a good list of drive to pick from. >What I want is information from people who've actually read the standard and >attempted to use a normally 16-bit drive in 8-bit mode. This is not >particularly easy with the existing hardware. I'll be surprised if anyone >has built interface hardware that is actually capable of this. It's >possible, though. Actually 8bit mode is the desireable config. Just that it was deemed optional. figure it out, why would a PC vendor put in a mode that is inherently half the performance? Allison

26 years, 3 months

2
4
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IBM 3200

by xds_sigma7＠hotmail.com

Or an 8100 series minicomputer for that matter... they're not exclusively mainframe devices, I know the DPPX/SP manuals for my 8100's tell how to attach those devices to the 8100, not to mention that you can also attach a Series/1, 3270 PC, Displaywriter, etc. Will J ______________________________________________________ Get Your Private, Free Email at http://www.hotmail.com

26 years, 3 months

1
0
0 0

8-bit IDE

by allisonp＠world.std.com

>But if you want an IDE interface for the S100 bus that will work with >just about any IDE drive that you throw at it, then you should only >depend on whatever features are required for the drive to work in a >normal PC. Because you can bet that some drive (or most drives!) won't >implement anything else. I'd agree from my experience. I'd add the 2.5" drive are less likely too. >> willing to believe that the interface will not assert IOCS16- if the drive's >> interface is programmed to operate in 8-bit mode. I would expect that if I > >The term 'interface' is ambiguous here. IOCS16/ is asserted by the drive, >not by the bus adapter card. True! I built the interface on the assumption it would be asserted to save logic. >The bus adapter simply buffers the signal (most of the time) and sends it >to the ISA slot. In particular, note that the address decoder logic on >the bus adapter is not what asserts IOCS16/ Correct, those assert CS lines. >AFAIK, a standard IDE drive only asserts IOCS16/ for accesses to the data >register. Not for accesses to any of the control/status registers. Which >means all of those are seen as 8-bit registers. Yep. That mas a 8<>16 adaptor simpler as it's only reads and writes to one address that need folding. >> MSI-implemented IDE channels don't have the means to operate in that mode. > >See above. The bus adapter should do the right thing provided the drive >asserts IOCS16/ at the right time. The TTL bus adapter cards are just a >couple of buffers and an address decoder (normally a PAL, but it doesn't >have to be). Actually this is only important to obscure hardware as the software knows a data register read/write is 16bit (word) and that all other registers are byte. I think the idea was that IOCS16 was to notify byte oriented logic to handle the 16bit transfer (ISA-8). Allison > >-tony >

26 years, 3 months

2
2
0 0

CPU upgrades, pt. II

by allisonp＠world.std.com

> > I can't help with your question, but you may want to post it on > >comp.sys.ibm.ps2.hardware.... > >Yes, that was going to be my next move....as you say they're VERY helpful >over there!! Heres a PS2/50z question. Mine only has 1meg, looks like 72pin simm but none I have seem work. All of them happen to be 8x32 (16chip). There is only one SIMM socket. What is the limit for ram (max)? Where can I get something bigger than 1mb? As my internal network progresses this box has value as I have a SMC 10bt NIC for it. I figure OS/2 warp V3 or Win3.1 would be a good os for it. Being 286 there are few unix based OSs with a networking that run well on it. That and its just too silly not to. Allison

26 years, 3 months

3
3
0 0

Busy week! (Sun 386i, NeXT)

by rich＠alcor.concordia.ca

[For those that don't read acquisition reports, there's a parts search request at the bottom!] Whee, what a pleasant week or so it's been. :-) Found a local guy selling a mono NeXT slab about a week ago -- I've been meaning to pick up one of these for *years* but never really got around to it. So I pick it up, and it's got an N4000A monitor. Now, for those that don't know NeXT, the phosphor in the 4000s and 4000As is relatively low-life. Like any Unix machine, NeXTs tended to be left turned on, and there was no way to turn the display off when the machine was on (power being supplied through the monitor cable). So, the displays by now tend to be quite dim. So, the seller pulls it out of the closet and it's under about half an inch of dust. He apologizes for the condition, and explains that a local university bought it but only used it three months before putting it in storage, and he bought it >from the university for a ridiculously low price but never used it himself. So, with the dust out of the way, I find myself with what is basically a brand-new NeXTstation! Were that not enough, it was a *steal*, and then as I was leaving, the seller goes "Oh, I should give you the documentation" and comes out with a NEXTSTEP Academic Bundle (with Developer and Mathematica) and a documentation library. So then today, a week later, I stop by my old faculty to pick up a Sun 386i that they were about to throw out ("Hey, better I decide to get rid of it than you", I say). I'm carting the machine out the door (alas, stripped of disks) and one of the technicians goes "You know, I think we have some documentation for that". There was too much for me to take; by the time we finished going through the storage room I'd found the original 19" mono display, a full documentation set, the system's purchase orders and maintenance history ($3500 for a 300mb disk, anyone?), an expansion cabinet, and two boxes of looseleaf Sun documentation about a foot square each, labeled "Owner's Supplement" (but containing all sorts of hardware docs for sun-3, -4, and 386i) and "Toolkit Documentation Set" (which appeared to be the equivalent for software and drivers) and two bags of disks and tapes. All free! So I still need to pick up a keyboard, which should be easy; but I'm having a hard time tracking down the Y-cable for the 386i that goes between the framebuffer card and the monitor and keyboard. It's a 501-1244 mono hi-res framebuffer and a 540-1062 monitor; anyone know of a source for these cables? -Rich -- ------------------------------ Rich Lafferty --------------------------- Sysadmin/Programmer, Instructional and Information Technology Services Concordia University, Montreal, QC (514) 848-7625 ------------------------- rich(a)alcor.concordia.ca ----------------------

26 years, 3 months

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Nuke Redmond!

by allisonp＠world.std.com

>I wonder why we never had access to this stuff at work, I'm sure it would've >been of some help. only if you could find what you sought. ;-P >Yes, I'd be using NT4 myself except that I cannot run DVE (Vectrex emulator) >under it. I haven't tried it under Win2K Professional yet, but I'm none too >hopeful. I'm running NT4ws and things I was told would not run seems to work fine! Even Gcadd6.1 (a PITA even under dos) runs smoothly. Then again I'm not running AGP video (using a PCI 2mb S3 board). >One thing I will say about Win2K is that it seems to be far more stable than >any other M$ OS on my hardware thus far. NT4 was giving me memory faults >when running OE5, Win95 is flaky at best and Win98 wouldn't run for more >than 4 or 5 minutes without "freezing" up completely. Sigh. Well, there is a message there. Memory faults??? doesn't this sugggest something to you? I'd start with the hardware setup. You may have bad ram, some device that is abusing the bus. or just maybe something is misconfigured. FYI there is a patch for W95 if your using a AMDk6-2/300 or faster (timing race condition in w95 breaks). That was after I fofund the board didn't want to run PC100 but did run PC66 as stable. That is an example of what subtle things can screw a system up. While I don't love w95 I have 40 clients running it and for the most part one burp a week among them all is the common thing and often reboot solves that. I've found office97 to be more troublesome. Then again, we don't run games and we dont run IE5.0 for obvious reasons. I'd look at that system for problems that make it unstable. Video drivers are commonly a problem, and some sound drivers are painful. the worst problem we have are things like ODBC drivers that leak, solution is a once perday stop/restart of Coldfusion on the NT server. Over the last year I've spent a lot of time debunking the rebilability myth and NT3.51 can be stable and so can W95. The work was finding all those gremlin apps, drivers and some hardware that didn't work. Then installing W95 correctly in some cases. MS code is not as robust as I'd like but if it falls over too often then you have a different problem. W95 is at least three versions with OSR2.1 (aka 95c) being the latest W95 and win 98 is really 95 with bug fixes and enhancements and currently OSR2 is the latest. W98 is more stable than 95 and has some debugging functions to help. Upgrades are available, W98 OSR2 is free for download if you have W98! NT4 is really improved 3.51, same deal, more stable ONLY if SP4 or later is installed. However bad apps and bad hardware will get you even with Linux, faster as it uses hardware harder! Start with good hardware. I'm not a MS lover, though it makes me a living now. I have foudn one thing that was true when I was hacking PDP-8s and later 8080s. Don't blame the cow for soggy cereal. Allison

26 years, 3 months

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CPU upgrades, pt. II

by allisonp＠world.std.com

> > There is only one SIMM socket. What is the limit for ram (max)? > >Where can I get something bigger than 1mb? > >Interesting, my Model 50 has a pair of SIMM sockets on the planar. They look >more like 30-pin SIMMs than 72-pin ones, but I haven't taken them out to >check yet. Also, I've never seen SIMMs like these before - the PCB is a >brown/beige colour, and the RAM chips are in small silver "cans" rather than >the usual black epoxy. Ok, there are two merged messages there to start with. Also there are two versions of the PS/2M50 one is like yours and uses two simms. the other is like mine a 50Z that uses one. the 50z is also 286 powered but was designed for no memory wait states. It's a tiny bit faster. At onepoint I had working examples of both, I kept the 50Z and geve the other away. >Anyway, I suspect you'll find that the limit for RAM (on the >motherboard/planar/whateveryouwanttocallit) will be 2Mb. IBM used to make >these wierd, double sided, 2Mb 72-pin SIMMs specifically for some models in >the PS/2 family. Thats what some one else already said. >I remember these SIMMs distinctly since around 10 years ago they used to >sell for practically nothing on FidoNet as they were of no use whatsoever in >anything but a PS/2. Figures. Allison

26 years, 3 months

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CPU upgrades, pt. II

by allisonp＠world.std.com

>Any idea where I can find one of these IBM ESDI drives, the one from my >Model 50 is missing and I want to restore the machine to it's original >configuration? If its mod 50 then not EDSI but RLL or MFM. I have one of the MFM ones with a few bad blocks. Allison

26 years, 3 months

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8-bit IDE

by allisonp＠world.std.com

>The coding, unfortunately, is not similar enough to the 1003-wah to make the >code directly portable, but there are simply more registers in the IDE. The only additional register is the FDC control hence the second CS. I used the 1003spec as I had that for writing code as it was more complete. >from what I could see for drives that were smaller than 500mb the two are identical. for larger dirves that could be different (things like LBA and all). Allison

26 years, 3 months

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XXDP+ LL Formatter on RX50/RX33

by pete＠dunnington.u-net.com

On Apr 17, 18:06, Nick Oliviero wrote: > Jeffrey l Kaneko wrote: > > > BTW-- Are RL02's a maintainance nightmare? Do the advantages > > of these drives outweigh the problems (not to mention their *size*, > > or are they simply not worth it? > > I'll second Tony's comments re:maintenance&alignment. We've had two > RL01's running on a 11/23 since 1980 and one RL02 on a 11/45 since > 1991 and I can recall just one head crash in all that time. I'm no longer > on the maintenance side, but I don't believe anyones changed the filters > in the last 5 years. (I am not recommending this aproach) Same sort of story with my pair of RL02s; they're not really in continuous use, though they were for about 4-5 years, haven't had a filter change in ten years, and they live in the garage. The only real incident was when a spider decided that nice warm drive was a good place to live, made its home amongst the heads, and came to a sticky end when the drive was spun up. -- Pete Peter Turnbull Dept. of Computer Science University of York

26 years, 3 months

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Acorn A4 website?

by pete＠dunnington.u-net.com

On Apr 17, 22:09, Peter Pachla wrote: > >> It's a nice machine, but of little use with nothing but the OS > >>installed. :-( > > > True :-) I've possibly got things that you might have a use for. It > >depends on what you're interested, obviously. What would you like to do? > > Initially, the main things I'm interested in are learning about the system > architecture and getting an assembler for it so I can try out ARM assembly > language. Ah, well I might have an assembler somewhere -- there were two flavours: one produced executable object code directly (I think) and the other produced object modules which could be linked with modules produced by high-level languages such as C, Fortran, and Pascal. I'm sure some of the remaining Acorn web and/or FTP sites, like Stuttgart or HENSA, still have instruction set lists. But you don't even need that to get going -- BBC BASIC V contains a reasonable 2-pass ARM assembler. It works just like the 6502 assembler in BBC BASIC II (et al). Here's a sample so you seen what I mean (don't ask me exactly how it works, it's intimatley bound up with the interactions between the desktop palette, the OS palette, and the hardware palette, and anyway I wrote this 12 years ago :-)): REM part of palette control program for RISC OS 2.0 DIM code% 408 PROCassemble REM main program loop here REM followed by several other procedures/functions DEF PROCsupremacy CALL getpal : REM read actual colour mapping D%=colour% : REM R3=colour% H%=windowhandle% : REM R7=windowhandle% CALL do_sup ENDPROC DEF PROCassemble LOCAL cnt,sup,bm,sptr,vptr,val,ptr,ccol,sp,link,pass% ptr=1 : ccol=3 : cnt=6 : sp=13 : link=14 : REM windowhandle passed in R7 sup=10 : bm=4 : sptr=5 : vptr=8 : val=9 : REM arbitrary register choice log=0 : phys=1 : bpp=4 : wptr=5 : tmp=9 FOR pass%=0 TO 2 STEP 2 P%=code% [ OPT pass% .do_sup STMFD (sp)!, {link} ADR sptr, supremacy% ; set up pointers ADR vptr, vpalette% LDR sup, [sptr] ; get supremacy word MOV bm, #&80 ; supremacy bit mask MOV R0, #12 ; for OSWORD 12 ; In case of moving from 16-colour mode to 256-colour mode, ; we need all the clrs separate from all the sets - because ; several colours may share one physical palette register ADD ptr, vptr, #95 ; ptr to last vpalette entry MOV cnt, #19 ; counter .clr TST sup, bm, LSL cnt ; s-bit for this palette entry LDRB val, [ptr, #1] AND val, val, #&7F STRB val, [ptr, #1] SWI "OS_Word" SUB ptr, ptr, #5 SUBS cnt, cnt, #1 BPL clr ; Do sets after clrs to ensure that if any colour in a group ; is set, all will be. If we did set/clr together, might ; finish a group with a clear. ADD ptr, vptr, #95 ; ptr to last vpalette entry MOV cnt, #19 ; counter .set TST bm, sup, LSR cnt ; s-bit for this palette entry LDRNEB val, [ptr, #1] ORRNE val, val, #&80 STRNEB val, [ptr, #1] SWINE "OS_Word" .next SUB ptr, ptr, #5 SUBS cnt, cnt, #1 BPL set ; If there is a current colour, and it should be clear, then ; we need to clear it explicitly in case it's been set as part ; of a group which is set TST ccol, ccol ; see if there IS a current colour BMI newsup ADD ptr, ccol, ccol, ASL#2 ; if so, point to vpalette%+ccol*5 ADD ptr, ptr, vptr LDRB val, [ptr, #1] ; get logical colour ORR val, val, #&80 TST sup, bm, LSL ccol ; should it be set ? ANDEQ val, val, #&7F ; clear supremacy if not STRB val, [ptr, #1] SWI "OS_Word" ; now we re-get supremacy in case of interactions above .newsup ADD vptr, vptr, #95 ; ptr to final vpalette entry MOV cnt, #19 ; counter MOV val, #0 .nsloop LDRB R0, [vptr] ; logical colour LDRB R1, [vptr, #1] ; supremacy+programming info AND R1, R1, #&7F ; just programming info SWI "OS_ReadPalette" AND R2, R2, #&80 ; return just supremacy ADD val, R2, val, LSL#1 ; shift into new supremacy word AND R0, bm, sup, LSR cnt ; corresponding bit in old word TEQ R0, R2 ; see if same BLNE toggle SUB vptr, vptr, #5 SUBS cnt, cnt, #1 BPL nsloop STR val, [sptr] LDMFD (sp)!, {PC} ; pop PC to return .toggle ADR R1, wimp%+1024 SUB R1, R1, #1024 STR R7, [R1] ; wimp%!0=windowhandle% STR cnt, [R1, #4] ; wimp%!4=icon% or cnt (ie R6) CMP cnt, #16 MOVLT R11, #&00000005 ; depending on which icon, MOVGE R11, #&77000000 ; change different things STR R11, [R1, #8] ; wimp%!8=icon flags EOR word MOV R11, #0 STR R11, [R1, #12] ; wimp%!12=icon flags clear word SWI "Wimp_SetIconState" MOVS pc, link .getpal MVN R0, #0 ; get bits-per-pixel for mode#-1 MOV R1, #9 SWI "OS_ReadModeVariable" MOV bpp, R2 ; save Log2BPP ADR wptr, wpalette% MOV R1, wptr SWI "Wimp_ReadPalette" ; get wimp palette mappings ADR vptr, vpalette% ADD vptr, vptr, #95 MOV cnt, #19 .pal CMP cnt, #16 LDRMIB log, [wptr, cnt, LSL#2] ; get colour programming info ANDPL log, cnt, #7 ; for 16-19, log=cnt MOD 16 MOVMI phys, #16 MOVEQ phys, #24 MOVHI phys, #25 BPL lc_ok CMP bpp, #3 ; if 256 colours, GCOL => LogColNo ANDEQ tmp, log, #&40 ANDEQ log, log, #7 ADDEQ log, log, tmp, LSR#3 .lc_ok STRB log, [vptr] SWI "OS_ReadPalette" BIC R2, R2, #&1F ; correct physical colour ADD R2, R2, phys MOV tmp, #3 .byte STRB R2, [vptr, #1]! ; save RGB, prog info, supremacy MOV R2, R2, LSR#8 SUBS tmp, tmp, #1 BPL byte SUB vptr, vptr, #9 SUBS cnt, cnt, #1 BPL pal MOV pc, link ; claims upcall to permit OS_ChangeDynamicArea ; as it does no checking, it must only be enabled immediately prior ; to calling OS_ChangeDynamicArea, and disabled immediately thereafter .upcall MOV R0, #0 LDMFD R13!, {PC} ] NEXT pass% ENDPROC -- Pete Peter Turnbull Dept. of Computer Science University of York

26 years, 3 months

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XXDP+ LL Formatter on RX50/RX33

by jeff.kaneko＠juno.com

On Mon, 17 Apr 2000 12:35:56 -0400 (EDT) allisonp(a)world.std.com writes: > > Has anybody ever ripped the Low Level formatter > > from the XXDP+ diskpack and put the needed components > > onto a floppy (of some sort)? > > > > I'm contemplating attempting to do this myself, > > but in case it's been done already, I'd just as > > soon as not re-invent the wheel. > > It's doable. You need to create a bootable XXDP disk and copy the > required formatter to it. not much more than that required. I figured as much; I was just probing to see if anyone had already done it. BTW-- Are RL02's a maintainance nightmare? Do the advantages of these drives outweigh the problems (not to mention their *size*, or are they simply not worth it? Jeff ________________________________________________________________ YOU'RE PAYING TOO MUCH FOR THE INTERNET! Juno now offers FREE Internet Access! Try it today - there's no risk! For your FREE software, visit: http://dl.www.juno.com/get/tagj.

26 years, 3 months

5
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Replacement disk request

by rcini＠msn.com

Hello, all: This weekend I finished archiving my Mac diskette collection. I copied them to the hard drive of my Mac SE as a safety maneuver. Once I have a little mo re time, I'll make images of them on the gs, move the images to the PC and b urn a CD of them. Anyway, I found two diskettes which have unrecoverable errors. If anyone ha s these that they can image and send my way, I'd appreciate it: Microsoft Basic Interpreter, version 2.10 (single disk) Microsoft Basic Interpreter, version 3.00 (disk 2 of 2) Thanks again. Rich [ Rich Cini [ ClubWin!/CW1 [ MCP Windows 95/Windows Networking [ Collector of "classic" computers [ <http://highgate.comm.sfu.ca/~rcini/classiccmp/> <================ reply separator =================>

26 years, 3 months

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8-bit IDE

by allisonp＠world.std.com

>I seem to remember that the IDE standard that I read said that the >command/status registers were all 8 bits (and mapped to the lower 8 data >lines). Only the data register was 16 bits, and the drive would assert >I/OCS16 when that was accessed and at no other time. Of course I have no >idea how modern drives handle this... This is still true for all the ones I've worked with (up to 528mb). Based on how the larger ones work in older systems they should be identical. The emulation is supposed to be WD1003 controller and based on the work I've done with them it rings true. This is why every 8bit system example you see the data path is folded somehow to 8bits. While reading the spec I discovered that Set_IO_8bit command and did a, Wow this will help. Never could make it do what is written in the spec. I suspect the drive never read the spec. If it worked I'm sure the 8bit community like those that did the GIDE, COCO IDE and others would have jumped on that. Allison

26 years, 3 months

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Lubing Shugart 800,801's?

by CLASSICCMP＠trailing-edge.com

I've been sorting through a large pile of Shugart 800's and 801's here, and many of them have goo on the head stepper lead screw. It looks like white lithium grease, undoubtedly put there by a previous owner or all-thumbs tech, as the Shugart manuals say (section 3.3): Do not lubricate the SA800/801; oil will allow dust and dirt to accumulate. However the goo got there on the leadscrew, it's so thick now that it's quite difficult to turn it - not only is the stepper motor not up to the job, I can barely turn it by hand in some cases. I have found that "Liquid Wrench" (yes, that stuff you get at the auto parts store) does a pretty good job of at least softening the goo temporarily, enough so that I can actually run the drive through diagnostics, but eventually the solvents evaporate and I'm left with thick goo. Is there an easy way to clean this goo off without completely disassembling the stepper motor/leadscrew assembly and doing the subsequent realignment? I can go in and do a half-assed job of cleaning the goo off the threads with Q-tips and skewers, but there's really a lot there and this doesn't get it all. -- 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

26 years, 3 months

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Creative/Panasonic interface spec.

by peter.pachla＠wintermute.org.uk

As an aside to the 8-bit IDE thread, I was wondering whether anyone knew where I could find the specification for the Matsushita CD-ROM interface used on Panasonic and Creative Labs drives? I have a "CR-562-B" I'd like to interface to a non-PC machine you see.... TTFN - Pete. -- Hardware & Software Engineer. Sound Engineer. Collector of Arcade Machines, Games Consoles & Obsolete Computers (esp DEC) peter.pachla(a)wintermute.org.uk | www.wintermute.org.uk --

26 years, 3 months

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CPU upgrades, pt. II

by SUPRDAVE＠aol.com

In a message dated 4/14/00 11:30:19 PM Eastern Daylight Time, allisonp(a)world.std.com writes: > Heres a PS2/50z question. > > Mine only has 1meg, looks like 72pin simm but none I have seem work. > All of them happen to be 8x32 (16chip). > > There is only one SIMM socket. What is the limit for ram (max)? > Where can I get something bigger than 1mb? > > As my internal network progresses this box has value as I have a SMC 10bt > NIC for it. I figure OS/2 warp V3 or Win3.1 would be a good os for it. > Being 286 there are few unix based OSs with a networking that run well on > it. > > That and its just too silly not to. the only version of OS2 that will work on the mod50 is 1.3. any OS2 version with built in windows support requires 386 or higher. you can put in various memory cards to goto max supported mem of 16meg. plus, the hard drive has bus attachment with only 160meg size being the biggest i've seen. DB Young ICQ: 29427634 view the computers of yesteryear at http://members.aol.com/suprdave/classiccmp/museum.htm --You can lead a whore to Vassar, but you can't make her think--

26 years, 3 months

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Nuke Redmond!

by allisonp＠world.std.com

-----Original Message----- From: Peter Pachla <peter.pachla(a)wintermute.org.uk> > > Actually the documentation is good but also there is tons of it worse > >than the vax grey wall if you try to get it all in one place.... > >That's very interesting, both the local college and factory I worked at had >support contracts with M$ but we were unable to get much more information >than what comes in the "user guide" out of them. Between technet Cdroms and microsoft press I have far more info about NT3.51 then I can possible use and yet I can't find what I need when (or even around when) I need it. it's so convoluted and random as to be useless. The gray wall at least has a useful index and the structure for the gray is the same as the orange before it. But then again you pay $3000 for VMS! Then again I paid nearly that for NT4 and 50 clients... and got that horrid 0.250 inch thick thing the call a book and all the helpfines I can stand on CDrom. >I must admit, I'm a little concerned with the way things are headed in the >Linux world right now. But then at least the underlying OS is lean and >stable and you can pare down your installation any way you want. My recent >Win2K test installation, OTOH, came in at well over 600Mb, and insisted on >installing piles of stuff which I neither want nor use (like the >accessibility options) with no way of uninstalling them....without going to >a LOT of trouble anyway. True, and all the bugs too! Thats why I went with NT4, it's finally mature. Allison

26 years, 3 months

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Acorn A4 website?

by pete＠dunnington.u-net.com

On Apr 2, 19:44, Peter Pachla wrote: > Actually, do you know of any sites which cover the A4000? > > I got one about 6 months back, and despite asking in the appropriate > newsgroups have been unable to find any useful sites on the web thus far - > all the ones I was pointed at were either no longer there or were of > manufacturers of hardware for RiscPCs.... > > It's a nice machine, but of little use with nothing but the OS installed. > :-( True :-) I've possibly got things that you might have a use for. It depends on what you're interested, obviously. What would you like to do? Is there any extra hardware (I expect not much, as an A4000 is baically an A3000 re-boxed)? -- Pete Peter Turnbull Dept. of Computer Science University of York

26 years, 3 months

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