test-drb

test-drb@ccmp.vtda.org

101090 discussions

by Antonio.Carlini＠riverstonenet.com

>One thing that might be interested is to see if I can find a PCI hose for >it, find source code for the PCI hose driver for a free OS (I'm pretty >sure that there is one out there somewhere), and try to write a VMS driver >for the PCI hose on OpenVMS/VAX? Can you get a PCI hose for it? I forget. If you can then you could also get one of those 3rd party PCI<->Q-bus boards and create a loop :-) >Then I could try to get a PCI >framebuffer working, but then how would I go about attaching a keyboard >and mouse? PCI->USB? Antonio

24 years

Core Memory Interfacing?

by ajp166＠bellatlantic.net

From: Joe <rigdonj(a)cfl.rr.com> drivers and sense amps on it so that might make things easier. However there are some things that you have to do with core and I don't know if they handled in hardware or if the OS had to take care of it. For example, reading core is destructive, that is it erases the contents so you have to store the contents back into it before you do anything else (unless you don't care if it's lost). That seems like it wou! > ld be easy enough to do in HW but I don't know if that's what they did. Not an OS task. It's usually handled in hardware either in the CPU microcode or as a synchronous timing with the cpu such that if the cpu is going to alter the data at the location it's already started the cycle. Some will stop the memory cycle after the read to see if it should write the old data back or alter it, this is usually signaled by the cpu before it outputs a new address. That would be ideal as you have something you may have data on, most of the circuits and even a clue on the timing. I'd love to play with something like that rather than a scratch build. Allison > > Joe > >At 11:41 AM 4/3/02 -0600, you wrote: >>Right off, let me say that I know next to nothing about the realities of >>using core memory. I only know that it looks like pretty cool stuff to >>play with. Would I be completely off my tree to try to build a core >>memory interface from scratch, assuming I had a pre-strung core frame with >>all the cores and wires intact? When I say "interface", I mean basically >>something that will let me talk to the core from a PC or from my >>recently-completed Mark-8 using TTL or CMOS levels. If I have a 64x64 >>frame, would I just need something on the order of 256 driver transistors >>(one to drive each of the X and Y wires in either direction) plus some >>kind of op-amp or comparator circuit to monitor the sense wire (is there >>just one of these per frame?) and determine whether or not a bit has >>flipped during a read pulse? Or are there all sorts of ghosts and goblins >>lurking in core memory that I don't want to confront? >> >> >> >> >

24 years

some what OT: FW: Adios, Internet Radio

by csmith＠amdocs.com

> -----Original Message----- > From: Lawrence Walker [mailto:lgwalker@mts.net] > classical stations. I guess I'll have to settle for Radio > Cuba on SW. :^) At least that way you're acting in support of a more honest organization than RIAA (the Cuban government)! > The US corporate beast is getting VERY greedy. They may bite > off more > than they can chew, if they wake up enough of the US populace. They may, but it's just about as likely as them deciding that McDonalds isn't a good place to go out for food. Chris Christopher Smith, Perl Developer Amdocs - Champaign, IL /usr/bin/perl -e ' print((~"\x95\xc4\xe3"^"Just Another Perl Hacker.")."\x08!\n"); '

24 years

IBM PS/1 Recovery/Install diskettes available

by SUPRDAVE＠aol.com

In a message dated 4/3/2002 8:33:45 AM Central Standard Time, r_beaudry(a)hotmail.com writes: > >><< A bit too new to be on topic, but... I was scrounging through some > >> >>stuff > >>yesterday, and unearthed a set of original diskettes for an IBM PS/1. > >> >> > > > >do you know what model PS/1? > > Well.... I only have the disks, and not a PS/1. They were part of another > lot of stuff that I got... > > Is there a way to tell from a file on the disk, or some number on the > outside of the disk? > > Unfortunately, I've been away from IBM for several years now. The early models used 9 or so, and the later more standard models used ~14 or more. If not claimed, I will take them.

24 years

Computers Manufactured in 1986

by dquebbeman＠acm.org

> > Pardon the ignorance here, > > But which would you guys consider to be the most > modernly functional one of the 1986 bunch? > > (What I am trying to do together here is get a setup of only stuff made in > 1986.... It'd be neat to have a system exactly the same age as me :)) I do believe most of us had that figured out. This list isn't really about modern computers. But hands down, the Macintosh would be the most modern of the bunch. Although it's not color-capable, the user interface is has is what Bill Gates stole >from Apple and used to build Windows. So you'd be most at home there. I've been a Mac advocate from the beginning, but for my own purposes, computers with operating systems that provide a text-mode shell, such as the *nixen and its derivitives, VMS, Primos, DOS, are preferable. As someone with a tiny bit of a math background, the ability you gain with a sophisticated command-line environment is great. In most of these operating systems, you can string commands togther like factors in an equation, and perform complex transformations on sets of files all at once. Hard to do that with a Graphical User Interface. To the List: Was the AT&T 3B2 still being made in '86? If so, there's a good choice for him. I even know where he could get one... -dq -Douglas Hurst Quebbeman (DougQ at ixsnayamspayIgLou.com) [Call me "Doug"] Surgically excise the pig-latin from my e-mail address in order to reply "The large print giveth, and the small print taketh away." -Tom Waits

24 years

Computers Manufactured in 1986

by blacklord＠telstra.com

----- Original Message ----- From: Christopher Smith <csmith(a)amdocs.com> Date: Thursday, April 4, 2002 1:20 am Subject: RE: RE: Computers Manufactured in 1986 > For a 1000 -- are you sure? :) I have a much easier time finding > software for my 520ST. As long as the software isn't AGA specific (or takes advantage of some of the graphics boards available), or will only run on one of the later OSes, then it'll run on the A1000. cheers, Lance ---------------- Powered by telstra.com

24 years

Core Memory Interfacing?

by dquebbeman＠acm.org

> care of it. For example, reading core is destructive, that is > it erases the contents so you have to store the contents back > into it before you do anything else (unless you don't care if > it's lost). That seems like it wou! > ld be easy enough to do in HW but I don't know if that's > what they did. The Hazeltine 2000 is a 1972-era computer terminal. It used core memory, but did not have a microprocesor, and therefore, no software. So at least the Hazeltine did it in hardware. When you'd turn it back on, it usually lost some bits, but you would always bring up the last screen that had been displayed, if someone didn't explicitly clear it. Not the kind of terminal to use in secure installtions... -dq -Douglas Hurst Quebbeman (DougQ at ixsnayamspayIgLou.com) [Call me "Doug"] Surgically excise the pig-latin from my e-mail address in order to reply "The large print giveth, and the small print taketh away." -Tom Waits

24 years

Language Converter (fwd)

by jpl15＠panix.com

Forwarded for any possible help; REPLY TO MR. DOWNMAN, not to me. I'm just the nosey forwarder.... ---------- Forwarded message ---------- Date: Wed, 3 Apr 2002 17:15:52 +1000 From: Jim Downman & Assoc. <djhdow(a)big.net.au> Reply-To: dxsoft(a)yahoogroups.com To: dxsoft(a)yahoogroups.com Subject: Language Converter How does one convert old Smith Corona Word Processor Diskettes for use on the hard drive of my Windows XP System. They contain years of hard work and valuable imformation ??? The diskettes are low density 740KB size. Can somebody help.?? Jim VK4FAD --------end fwd-----------

24 years

IBM PS/1 Recovery/Install diskettes available

by SUPRDAVE＠aol.com

In a message dated 4/3/2002 12:14:38 PM Central Standard Time, pat(a)cart-server.purdueriots.com writes: > Don't remeber the model number, but the 286-based micro-thin PS/1 my > parents bought back in '90 had 13 disks for it's 'install/backup set'. > The system was about 2in thick, 12in wide, included a Mouse, PS/1 software > crap, IBM DOS 4.0, MSWorks for Dos, 1M of RAM, a 1.4M floppy drive and 40M > IDE hard drive. the included 12" monitor also included they system's > power supply (how the thing was made so dang small). Also included a > weird internal 2400baud modem with a non-standard interface. > > The system got tossed (not sure I can say I'm sad about it either) when my > parents move to a condo a couple years ago. > > yes, that's the 2011 model with DOS in ROM. pretty neat little machine. You could even get one with 512k, no HDD and mono screen. Found the addon second story 5.25 addition for $5 in the box a few weeks ago.

24 years

IBM PS/1 Recovery/Install diskettes available

by r_beaudry＠hotmail.com

>Date: Tue, 2 Apr 2002 19:07:15 EST >From: SUPRDAVE(a)aol.com >Subject: Re: IBM PS/1 Recovery/Install diskettes available >In a message dated 4/2/02 5:05:52 PM Eastern Standard Time, >r_beaudry(a)hotmail.com writes: > >><< A bit too new to be on topic, but... I was scrounging through some >> >>stuff >>yesterday, and unearthed a set of original diskettes for an IBM PS/1. >> >> > >do you know what model PS/1? Well.... I only have the disks, and not a PS/1. They were part of another lot of stuff that I got... Is there a way to tell from a file on the disk, or some number on the outside of the disk? Rich B. _________________________________________________________________ MSN Photos is the easiest way to share and print your photos: http://photos.msn.com/support/worldwide.aspx

24 years

The Future End of Classic Computing

by csmith＠amdocs.com

> -----Original Message----- > From: Chris [mailto:mythtech@mac.com] > Humm... better send Apple's QT team to jail, sounds like they are > releasing software that can bypass copy protection. :-) Not only that, but the OS team too, since their OS allows one to just copy files all over the place willy nilly! ;) Get those nasty people at IEEE, while you're at it, since some of their standards are designed to facilitate "data interchange." Chris Christopher Smith, Perl Developer Amdocs - Champaign, IL /usr/bin/perl -e ' print((~"\x95\xc4\xe3"^"Just Another Perl Hacker.")."\x08!\n"); '

24 years

The Future End of Classic Computing

by csmith＠amdocs.com

> -----Original Message----- > From: Fred Cisin (XenoSoft) [mailto:cisin@xenosoft.com] > At NCC (which was once the biggest show in the US, soon > thereafter passed > by by Comdex), booth staff at several manufacturers were incapable of > imagining ANY possible use of disk format conversion other > than the making > of unauthorized copies of their proprietary software. In fact, Yes, folks, people really are That Stupid. I wouldn't have suggested this if I didn't think it was a possibility, but I find it incredibly funny that it's actually been tried already. :) > representatives of TWO companies threatened to sue me if I > included their > disk formats! > Although I was out of town, and staying in a hotel room, I > stayed up late > that night to make sure that theirs were the very next formats that I > added. You did exactly what I would have done in that situation, perhaps with a prominent note in the manual as to why. > But neither company kept their promise of providing me with > massive free > publicity. My only worry is that these days, they might actually go through with it. Chris Christopher Smith, Perl Developer Amdocs - Champaign, IL /usr/bin/perl -e ' print((~"\x95\xc4\xe3"^"Just Another Perl Hacker.")."\x08!\n"); '

24 years

line monitor? Interview 3600

by mmcfadden＠cmh.edu

I found what looks like to be a line monitor. It has two RS-232C DB25 connectors on the back, labeled connector 1 and connector 2, there is also a barrel type connector labeled video out. The front panel which is hinged at the bottom and is the keyboard, folds down and reveals a small monitor. The keys appear membrane contact type. There are buttons labeled send and receive. There is a QWERTY keyboard and number pad and additional buttons. The label is Atlantic Richfield and immediately below it is Interview 3600. It appears to be the size and form factor of a Compaq luggable. There are no card slots or other openings on the back besides the power connector, 2 DB25 connections and external video. Has anybody seen one of these? I suppose if could be some kind of disk or interface exerciser. Google turns up nothing. Thanks Mike mmcfadden(a)cmh.edu

24 years

The Future End of Classic Computing

by dquebbeman＠acm.org

> This idiodic bill bill sounds like a sure fire way to > kill the electronics industry in the US. I wonder who Fritz > Hollings really works for, the Taliban? In any event, it > will NEVER happen in the US, we already smuggle in huge > quantities of drugs, gun s, booze, parrots and everything > else that the US government attempts to ban so I guess we may > have to add computers to the list next. Doc's response seems to be typical- it sounds so outrageous that there's no way it could happen. However, I nonetheless urge everyone to write their U.S. representative and Senator and inform them that this and any similar legislation is unacceptable to you. In order to keep your message short, I suggest that you not elucidate the many reasons why it's bad, but instead offer to do so in a follow-up correspondance. Regards, -doug q

24 years

Core Memory Interfacing?

by ajp166＠bellatlantic.net

Not that many trasistors more like 128 diodes. You would need to know: 1-The switching current for the core: 2-the half select current(related to #1): 3-Time to switch 4-is it a 2d or 3d array(word or bit frame) 5-single sense/inhibit or serperate sense and inhibit lines. Words are driven by the same drivers as an individual bit so that saves parts. Generally there is an array of multiplexed devices to drive the array, for a 64x64 that would likely mean only 128 driver devices (best done as integrated stuff like TI 754xx parts) and a lot of steering diodes. You will need a sense amp per bit and an inhibit driver per bit. Most core systems use a delay line to get the timing as the cycle is RMW (read/modify or rewrite) as core is destructive read out (generally) so you have to write the data back. The time you sense the bit change is tied to the core used and varies some with temperature and current. Also the sense amp must discriminate from noise and a valid pulse related to a bit change. Oh, it will be slow. Most core system were over .5us{500nS} Tacc and Tcy are typically 1.0-1.6us{1000-1600nS} . It's a rewarding task but non-trivial nor small. FYI: you need a heafty low noise multiple voltage power supply to run it. Me, I'm looking at a 16k semiconductor memory replacement for a PDP-8f that is simple. This would be a resource to those that have found an -8 without enough core or to replace bad core. This is of course a IMCFT project. Allison {IMCFT >>> In My Copious Free Time} -----Original Message----- From: Bill Richman <bill(a)timeguy.com> To: classiccmp(a)classiccmp.org <classiccmp(a)classiccmp.org> Date: Wednesday, April 03, 2002 12:58 PM Subject: Core Memory Interfacing? >Right off, let me say that I know next to nothing about the realities of >using core memory. I only know that it looks like pretty cool stuff to >play with. Would I be completely off my tree to try to build a core >memory interface from scratch, assuming I had a pre-strung core frame with >all the cores and wires intact? When I say "interface", I mean basically >something that will let me talk to the core from a PC or from my >recently-completed Mark-8 using TTL or CMOS levels. If I have a 64x64 >frame, would I just need something on the order of 256 driver transistors >(one to drive each of the X and Y wires in either direction) plus some >kind of op-amp or comparator circuit to monitor the sense wire (is there >just one of these per frame?) and determine whether or not a bit has >flipped during a read pulse? Or are there all sorts of ghosts and goblins >lurking in core memory that I don't want to confront? > > > >

24 years

Computers Manufactured in 1986^H^H56"

by dquebbeman＠acm.org

> From: Douglas H. Quebbeman <dquebbeman(a)acm.org> > > >> PDP-8e of various forms, Cincinattai Millichron CM2000/2100/2200 to > > ^^^^^^^^^^^^^^^^^^^^^ > > > >Cincinnati Milacron > > Ok, since your so good as to fix the spelling, maybe you > know where oneis? > > I woked with them briefly in '73, never seen them since. Last one I saw was in the Humanities Department at IU, hooked to a CDC 607 tape drive and running one of the first lazer light shows, called Soleil, in 1977. They *may* still have it... or someone associated with the school probably does. Don Byrd was the guy working with it, he's up at some school in Boston now, I think... The PDP-8 clone I'm looking for is the Harris/COPE 1200... -dq -Douglas Hurst Quebbeman (DougQ at ixsnayamspayIgLou.com) [Call me "Doug"] Surgically excise the pig-latin from my e-mail address in order to reply "The large print giveth, and the small print taketh away." -Tom Waits

24 years

Soldering and other skills (was Re: QL-Quality (Was: ZX-81 Question))

by philpem＠btinternet.com

ard(a)p850ug1.demon.co.uk (Tony Duell) said: > > Don't eat sandwiches while you're soldering...and wash your hands when > > you're done ;-) Lead in gasoline (petrol over here) was a bigger > > problem. > > But I am not at all convinced that the alternatives that are added to > 'unleaded' petrol are any more healthy... Hmm... Now you've me a bit more to worry about... > > Resin flux is a known carcinogen, so don't breathe the fumes. > > Oh _great_. Still, it's a well-known fact that research causes cancer in > rats :-) ROFL! Theoretically, judging by the amount of solder flux I've inhaled over the past few years, I should be either on my deathbed or have some form of cancer by now... Fact: If I listed every single chemical I've ever exposed myself to, it would probably be long enough such that if I printed it out, it would go to the sun and back... And some of the chemicals on that list: Acetic acid (photographic stopbath) Hydroquinone (photographic developer) God-knows-what (photographic fixer) Acetone (nailvarnish remover) Whatever SRBP board dumps when heated to 180 deg C (toner transfer) Ferric Chloride (PCB etchant) Lead (solder) Rosin (solder flux - Maplin probably don't use it in their lousy "Adepto" solder) Xylene (Electrolube lacquer pen) Mercury (glass tiltswitch) Need I go on? Once again, my philosophy is "Screw it - I'm going to snuff it at some point anyway". And if scraping my fingers (and cutting them) with solderjoints is as bad as breathing in solder fumes, I should REALLY be dead by now... Later. -- Phil. philpem(a)bigfoot.com http://www.philpem.btinternet.co.uk/

24 years

"BidsToGo" is places to go, things to do

by webmaster＠bidstogo.biz

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24 years

DEC swap meet?(RE: Off Topic? PDP 11 1134/1145's)

by ajp166＠bellatlantic.net

A good choice is the MIT flea, held every 3rd sunday starting April through September. It's in Cambridge MA (nearly Boston.) Allison -----Original Message----- From: John Allain <allain(a)panix.com> To: port-vax(a)netbsd.org <port-vax(a)netbsd.org>; classiccmp(a)classiccmp.org <classiccmp(a)classiccmp.org> Date: Wednesday, April 03, 2002 12:00 PM Subject: Re: DEC swap meet?(RE: Off Topic? PDP 11 1134/1145's) >> Maybe we can get something going up here in New Haven, CT? > >I'm all for something like this. NYC/Boston is my route, so New >Haven is right on it. I've driven as far as Rochester (350?mi) for >such purposes. Washington, DC would be in my range. >Maynard, MA would be a neat choice for historic reasons. > >John A. > >

24 years

DEC swap meet?(RE: Off Topic? PDP 11 1134/1145's)

by CordaAJ＠nswc.navy.mil

I'd also be quite happy with Washington DC (It's just an hour or so away from me :-) additionally, it has a number of interesting sites to visit (Smithsonian?) for those who haven't been here before. -al- -acorda(a)1bigred.com > -----Original Message----- > From: John Allain [mailto:allain@panix.com] > Sent: Wednesday, April 03, 2002 11:35 AM > To: port-vax(a)netbsd.org; classiccmp(a)classiccmp.org > Subject: Re: DEC swap meet?(RE: Off Topic? PDP 11 1134/1145's) > > > > Maybe we can get something going up here in New Haven, CT? > > I'm all for something like this. NYC/Boston is my route, so New > Haven is right on it. I've driven as far as Rochester (350?mi) for > such purposes. Washington, DC would be in my range. > Maynard, MA would be a neat choice for historic reasons. > > John A. > >

24 years

Computers Manufactured in 1986^H^H56"

by ajp166＠bellatlantic.net

From: Douglas H. Quebbeman <dquebbeman(a)acm.org> >> PDP-8e of various forms, Cincinattai Millichron CM2000/2100/2200 to > ^^^^^^^^^^^^^^^^^^^^^ > >Cincinnati Milacron Ok, since your so good as to fix the spelling, maybe you know where one is? I woked with them briefly in '73, never seen them since. Allison

24 years

Computers Manufactured in 1986

by dquebbeman＠acm.org

> Hmmm PDP-1 eh? > > I could emulate it .. ;^> If you do, try separating the graphics display emulator from the computer emulator... then we could use it for yet still other emulated systems! -dq -Douglas Hurst Quebbeman (DougQ at ixsnayamspayIgLou.com) [Call me "Doug"] Surgically excise the pig-latin from my e-mail address in order to reply "The large print giveth, and the small print taketh away." -Tom Waits

24 years

WTF?

by fauradon＠beckman.com

I usually don't post from work but this need to be noted and discussed!!! http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=1341836302 For those of you who can not check the link out: it's a collection of gaming consoles with a bid of $11,600.00 Yes that's eleven thousand six hundred bucks. Granted it has some nice pieces I can't add it up to that amount. Francois

24 years

DEC swap meet?(RE: Off Topic? PDP 11 1134/1145's)

by wilson＠dbit.com

From: "John Allain" <allain(a)panix.com> >> Maybe we can get something going up here in New Haven, CT? > >I'm all for something like this. NYC/Boston is my route, so New >Haven is right on it. I've driven as far as Rochester (350?mi) for >such purposes. Washington, DC would be in my range. >Maynard, MA would be a neat choice for historic reasons. Sounds good to me too, I'm near Springfield MA so I can hit anywhere in NE easily, or eastern NY. John Wilson D Bit

24 years

DEC swap meet?(RE: Off Topic? PDP 11 1134/1145's)

by CordaAJ＠nswc.navy.mil

I'd be interested on an occasional basis... I live in Virginia, but I grew up (and most of my family lives in) New Haven, so it would be simply another visit home for me. -al- -acorda(a)1bigred.com > -----Original Message----- > From: Linc Fessenden [mailto:linc@thelinuxlink.net] > Sent: Wednesday, April 03, 2002 10:03 AM > To: David Woyciesjes > Cc: port-vax(a)netbsd.org; classiccmp(a)classiccmp.org (E-mail) > Subject: Re: DEC swap meet?(RE: Off Topic? PDP 11 1134/1145's) > > > On Wed, 3 Apr 2002, David Woyciesjes wrote: > > > (cc'd to ClassicCmp list, I'm sure there's interest there...) > > > > > From: Brian Hechinger > > > > > > On Tue, Apr 02, 2002 at 12:26:23PM -0800, Lyle Bickley wrote: > > > > All, > > > > > > > > May I make another suggestion? A bunch of us here in > the Silicon Valley > > > are > > > > fans of old DEC equipment. We get 'em and restore 'em. > Some favor PDPs > > > (one > > > > guy even has two DEC 10's), some favor the smaller 11's > and others of us > > > like > > > > old VAXes. At any rate, we meet once a month for lunch and swap > > > stories, > > > > tell what stuff we've picked up, etc. All of us are > willing to trade > > > > equipment or donate books and equipment to each other. > We studiously > > > avoid > > > > EBAY. > > > > > > so who's on the east coast that would like to do this? > i'm in philly, and > > > i > > > know isildur is in pittsburg. don't know where we would > want to meet > > > though, > > > since some people would have to travel far for that. > thoughts? ideas? > > > -- > > > > > I'd be up for it. A flea-market swap-meet kinda thing, > right? Maybe > > we can get something going up here in New Haven, CT? > > I am in as well.. Problem is I live in between Isildur and > Brian so PA is > looking better and better :-) > > -Linc Fessenden > > In the Beginning there was nothing, which exploded - Yeah right... > >

24 years

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test-drb