test-drb October 2018

test-drb@ccmp.vtda.org

176 participants
160 discussions

Anyone have HP 24612-90013 A-Series Diagnostic Operating and Troubleshooting Manual?

by glen.slick＠gmail.com

Does anyone have copies of these two manuals? 24612-90010 Introduction to the A-Series Computer Diagnostics Manual 24612-90013 A-Series Diagnostic Operating and Troubleshooting Manual They are referenced in this manual: RTE-A Primary System Software Installation Manual 92077-90038, April 1995, Rev 6200 http://www.bitsavers.org/pdf/hp/1000/RTE-A/92077-90038_RTE-A_PrimInst.pdf The hpmuseum.net site has some older versions of the 24612 manuals, which date from 1983. The final versions of those manuals would be nice to have.

5 years, 11 months

Astounding Asking Price

by robert.jarratt＠ntlworld.com

My jaw dropped when I saw this: https://www.ebay.co.uk/itm/223201002247?ul_noapp=true It looks nice externally, and it has the pedestal, which is nice, but the seller has not even give the spec or posted pics of the innards and it is "untested". At that price I would expect a bit more information.. As it happens, I am trying to fix my 350 at the moment. Regards Rob

5 years, 11 months

70's computers

by jnc＠mercury.lcs.mit.edu

> From: Chuck Guzis > Danny Hillis' CM-1 also used lots of 1-bit processors. Does anyone know why they didn't catch on? Was it something like 'commodity 'ordinary' processors became so cheap one could build large parallel machines out of them, and each node had a lot more computing capability', or something like that? I wonder how many CM's are still in existence at this point? Noel

5 years, 11 months

pdp-11 ethernet boot

by chd＠chdickman.com

The boot ROMs for uPDP-11 contain loaders for XH (ethernet) was there any kind of standard for the server? It tries to load from a MOP DL server and I have modified mopd from NetBSD to respond and load 2.11bsd a.out. So I have a solution, but was curious if there was some DEC standard.

5 years, 11 months

SUN keyboard for grabs

by db＠db.net

I am tossing a pile of old PC keyboards but found one SUN type C keyboard. It's missing a few keys :-( but might interest anyone needing spare parts. Missing Find/Cut left keypad "."/Suppr on right keypad "c" key is missing one foot is missing I'll ship if you pay postage. - Diane -- - db at FreeBSD.org db at db.net http://artemis.db.net/~db

5 years, 11 months

The DosFish (object oriented GUIS)

by technoid6502＠gmail.com

This was circulating in 1995/6. IBM had been shipping the very good OS/2 for some years and Microsoft was trying to catch up. Someone did a very nice parody. Jeff *****The Legend of the Pea Sea***** Long ago, in the days when all disks flopped in the breeze and the writing of words was on a star, the Blue Giant dug for the people the Pea Sea. But he needed a creature who could sail the waters, and would need for support but few rams. So the Gateskeeper, who was said to be both micro and soft, fashioned a Dosfish, who was small and spry, and could swim the narrow sixteen-bit channel. But the Dosfish was not bright, and could be taught few tricks. His alphabet had no A's, B's, or Q's, but a mere 640 K's, and the size of his file cabinet was limited by his own fat. At first the people loved the Dosfish, for he was the only one who could swim the Pea Sea. But the people soon grew tired of commanding his line, and complained that he could neither be dragged nor dropped. "Forsooth," they cried, "the Dosfish can only do one job at a time, and of names he knows only eight and three." And many of them left the Pea Sea for good, and went off in search of the Magic Apple. Although many went, far more stayed, because admittance to the Pea Sea was cheap. So the Gateskeeper studied the Magic Apple, and rested awhile in the Parc of the XerOx, and he made a Window that could ride on the Dosfish and do its thinking for it. But the Window was slow, and it would break when the Dosfish got confused. So most people contented themselves with the Dosfish. Now it came to pass that the Blue Giant came upon the Gateskeeper, and spoke thus: "Come, let us make of ourselves something greater than the Dosfish." The Blue Giant seemed like a humbug, so they called the new creature Oz II. Now Oz II was smarter than the Dosfish, as most things are. It could drag and drop, and could keep files without becoming fat. But the people cared for it not. So the Blue Giant and the Gateskeeper promised another Oz II, to be called Oz II Too, that could swim fast in the new, 32-bit wide Pea Sea. Then lo, a strange miracle occurred. Although the Window that rode on the Dosfish was slow, it was pretty, and the third Window was prettiest of all. And the people began to like the third Window, and to use it. So the Gateskeeper turned to the Blue Giant and said, "Fie on thee, for I need thee not. Keep thy Oz II Too, and I shall make of my Window an Entity that will not need the Dosfish, and will swim in the 32-bit Pea Sea." Years passed, and the workshops of the Gateskeeper and the Blue Giant were many times overrun by insects. And the people went on using their Dosfish with a Window; even though the Dosfish would from time to time become confused and die, it could always be revived with three fingers. Then there came a day when the Blue Giant let forth his Oz II Too onto the world. The Oz II Too was indeed mighty, and awesome, and required a great ram, and the world was changed not a whit. For the people said, "It is indeed great, but we see little application for it." And they were doubtful, because the Blue Giant had met with the Magic Apple, and together they were fashioning a Taligent, and the Taligent was made of objects, and was most pink. Now the Gateskeeper had grown ambitious, and as he had been ambitious before he grew, he was now more ambitious still. So he protected his Window Entity with great security, and made its net work both in serving and with peers. And the Entity would swim, not only in the Pea Sea, but in the Oceans of Great Risk. "Yea," the Gateskeeper declared, "though my entity will require a greater ram than Oz II Too, it will be more powerful than a world of Eunuchs." And so the Gateskeeper prepared to unleash his Entity to the world, in all but two cities. For he promised that a greater Window, a greater Entity, and even a greater Dosfish would appear one day in Chicago and Cairo, and it too would be built of objects. Now the Eunuchs who lived in the Oceans of Great Risk, and who scorned the Pea Sea, began to look upon their world with fear. For the Pea Sea had grown and great ships were sailing in it, the Entity was about to invade their Oceans, and it was rumored that files would be named in letters greater than eight. And the Eunuchs looked upon the Pea Sea, and many of them thought to immigrate. Within the Oceans of Great Risk were many Sun Worshippers, and they had wanted to excel, and make their words perfect, and do their jobs as easy as one-two-three. And what's more, many of them no longer wanted to pay for the Risk. So the Sun Lord went to the Pea Sea, and got himself eighty-sixed. And taking the next step was He of the NextStep, who had given up building his boxes of black. And he proclaimed loudly that he could help anyone make wondrous soft wares, then admitted meekly that only those who know him could use those wares, and he was made of objects, and required the biggest ram of all. And the people looked out upon the Pea Sea, and they were sore amazed. And sore confused. And sore sore. And that is why, to this day, Ozes, Entities, and Eunuchs battle on the shores of the Pea Sea, but the people still travel on the simple Dosfish.

5 years, 11 months

DEC 8640 Pinout

by robert.jarratt＠ntlworld.com

I am trying to trace the reason why the CPU on my Pro 350 is apparently being constantly reset. I have reached a DEC 8640 chip. Does anyone have a pinout for it, perhaps even a datasheet, so I can understand what it is supposed to do and whether the pin is an input or an output? Thanks Rob

5 years, 11 months

DEC 8640 Pinout

by jnc＠mercury.lcs.mit.edu

> From: Rob Jarratt > DEC 8640 chip. Does anyone have a pinout for it, perhaps even a > datasheet, That's almost certainly a DS8640; a quad NOR unified bus receiver. Data sheets for the are readily available. Noel

5 years, 11 months

"Object Oriented GUI"

by technoid6502＠gmail.com

I used OS/2 from 1993 to 2003 almost exclusively. It has the most beautiful GUI on the planet, is object-oriented to a fault, and is the target of all the claims Microsoft was making with regard to the Object-orientedness of their new windows 95. Wikipedia https://en.wikipedia.org/wiki/Workplace_Shell mentions some important attributes of a truely object-oriented gui. Someone mentioned inheritance and polymorphism. These are two products of true object oriented gui design. Applications inherit the ability to manipulate and use whatever objects exist in the system. A word processor is not limited to just text files, for example, or to only the files the programmer originally set out for it. The system allows the applications to grow in functionality as new object types are developed/assembled by other applications or the user. I gather, though I have not had the opportunity to play with it, that the Next Gui was also extreme in its object-orientedness, though I can't see that from MACOS (its inheritor), I understood that to be the case? At any rate, if you want a fantastic example of a object-oriented graphical user interface, check out the Workplace Shell. Jeff

5 years, 11 months

Cossor/Raytheon DIDS-400

by camiel.vanderhoeven＠vmssoftware.com

I just rescued a Cossor DIDS-400 terminal from ending up at the garbage dump. Cossor was a UK company, that ended up as a Raytheon subsidiary, and the Cossor DIDS-400 was marketed as the Raytheon DIDS-400 in the US. My terminal is model no 402-2/C15, part no D/GA 800260, serial no 023, option table code 321121. Date codes on the IC?s are in 1968. Internally, there?s some interesting technology; ITT MIC9xx DTL IC?s, a piano wire delay line for character storage, and a Raytheon Symbolray monoscope tube as the character generator. I?d love to get this terminal working again, and to that end I?m looking for any kind of service documentation (any other documentation would be welcome too, as I have nothing). The power supply in this terminal consists of two parts, manufactured by Best Products Ltd, of Felixstowe, Suffolk, models 508-L (low voltage supply), and 508-H (high-voltage supply). Any documentation on these would be most welcome, too. Kind regards, Camiel Vanderhoeven

5 years, 11 months

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test-drb October 2018