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

by rmeenaks＠olf.com

And here is a complete development system: http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=3640221509&category=1251 Cheers, Ram

22 years, 9 months

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Mac-based Transputer Card on Ebay

by rmeenaks＠olf.com

Here is something you normally don't see: http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=2767852487&category=8101 Cheers, Ram

22 years, 9 months

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Whitechapel MG-1 : dead power supply ?

by bernd＠kopriva.de

Hi, since two weeks, i own a Whitechapel MG-1 ... ... unfortunately, i did not succeed in starting the machine. It seems, that the power supply is defect, as i've blown 3 fuses :-(. Does anyone have the schematics for the power supply, or maybe know the specs for it, so i can replace it ? Especially, i don't know, what the O2 output means ... Thanks alot Bernd Bernd Kopriva Phone: ++49-7195-179452 Weilerstr. 24 E-Mail: bernd(a)kopriva.de D-71397 Leutenbach Germany

22 years, 9 months

1
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Reply trimming and HTML posts

by dave＠mitton.com

errr, can some people PLEASE start trimming their replies, particularly for one-liners??? Also, those people that post HTML; It's really nice that the list processor strips them out, and creates a web page and inserts a link, but I just skip by most of them. If you want to be read, post ASCII. Thanks, Dave (bad enough email bandwidth is wasted with spam). On 11/22/2003 03:18 AM -0600, cctech-request(a)classiccmp.org wrote: >Date: Fri, 21 Nov 2003 20:30:56 -0600 >From: "Jay West" <jwest(a)classiccmp.org> >Subject: Re: Grandfather system RTE6/VM? >To: "General Discussion: On-Topic and Off-Topic Posts" > <cctalk(a)classiccmp.org> >Message-ID: <001901c3b0a0$b18adeb0$6400a8c0@HPLAPTOP> >Content-Type: text/plain; charset="iso-8859-1" > >it's a museum!!! Emulate hardware for display? > >----- Original Message ----- >From: "Bob Shannon" <bshannon(a)tiac.net> >To: "ed sharpe" <esharpe(a)uswest.net>; "General Discussion: On-Topic and >Off-Topic Posts" <cctalk(a)classiccmp.org> >Sent: Friday, November 21, 2003 4:50 PM >Subject: Re: Grandfather system RTE6/VM? > > > > The 2883 would be an ideal drive to replace by hardware emulation! > > <several pages of snip....and this message has been going on...>

22 years, 9 months

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How many of you like HP41C calculators?

by mouse＠Rodents.Montreal.QC.CA

[Replying to multiple messages here.] ["William R. Buckley" <wrb(a)wrbuckley.com>] > [me, der Mouse] >> ["William R. Buckley" <wrb(a)wrbuckley.com>] >>> There are several architectures for computers, with all being the >>> equal of the Turing machine. >> That's interesting, because not one of the devices I have called >> computers, used as computers, or heard/seen called computers, is >> even theoretically equivalent to a Turing machine. In particular, >> they all have finite storage. > Consult von Neumann. When you do, remember that he devised an > architecture which is neither the classic von Neumann nor the classic > Harvard. It is, however, a true data flow architecture, and highly > parallel. This has nothing to do with my point, which is that defining "computer" in a way that makes all computers equal to Turing machines is not a useful definition, since there are then no "computer"s. >>> Nevertheless, for all systems of computation, there is the >>> possibility of self-modification of code which is accessible >>> through other means, typically in the form of a file. >> So I suppose a dedicated microcontroller (eg, code in >> mask-programmed ROM) is not a "system of computation"? > The fact is that dedicated microcontrollers define a computing > environment, and the location of the code is immaterial. The location of code is not immaterial when it is in an inherently read-only medium, since you are specifying the possibility of self-modification of code as part of your definition. >> Even if the application that's in ROM is, say, a pocket calculator? >> A programmable pocket calculator? >> The microcode-and-microcpu view of a CISC CPU chip? >> Where do you draw the line? > This is the value of the Turing machine. I encourage you, and like > minded list members, to consult your local computer science faculty > of any legitimate university you like, and ask them if the computers > they use are equivalents of the Turing machine. I seriously doubt > that you will find a single professor who will deny the equivalence. Perhaps you are right; perhaps not - but any such claim of equivalence either springs from ignorance or from linguistic shorthand; anyone, professor or not, who persists in claiming such equivalence after having had it pointed out that real computers have finite storage is simply _wrong_. And in any case, I don't see how what you wrote has anything to do with my point, which is that what looks like a Harvard architecture when considered from one point of view may look like a von Neumann architecture when considered from another, and that restricting yourself to points of view which include the possibility of code-which-writes-code (I hesitate to call it *self*-modifying code) is unnecessarily restrictive, not to mention contrary to the usual uses of the words to the point of being confusing. >>> Also, remember the features of some languages, like APL, which will >>> operate on von Neumann and Harvard architectures, and which APL >>> code might include the execute operator, which facilitates run-time >>> code generation and execution. >> In the sense of "code" for which the underlying CPU is a von Neumann >> or Harvard machine, the execute operator does not necessarily imply >> run-time code generation. > It is disengenuous, and intellectually dishonest, to use a lack of > implication to assert a lack of occurrance. That's not what I was trying to do at all. I read your statement about APL both (a) running on both von Neumann and Harvard architectures and (b) including the execute operator as implying that (c) both vN and H architectures can do run-time code generation. My point was that this implication is false: execute does not require run-time code generation, so (c) does not necessarily follow from (a) and (b). > In truth, there is no logical difference between a hardware based > mechanism of computational processing, and a software based mechanism > of computational processing. There is when you are drawing distinctions based on whether the hardware can modify its own code or not. For example, it is likely that the machine I'm typing this on is microprogrammed with mask-programmed microcode ROM, in which case the real hardware is a strict Harvard architecture, with no possibility whatever of code-that-writes-code. Based on what you've written, it seems to me that this implies you do not think it is reasonable to call it a computer. [more "William R. Buckley" <wrb(a)wrbuckley.com>, another message] > Neither can you alter the microcode of the x86, yet it is the essence > of a computer. This makes it appear that you do _not_ think that being able to alter code is necessary for something to be considered a computer. I'm becoming confused about what your stance actually is here. Perhaps your position is that it is necessary for there to exist some level of abstraction at which code-that-writes-code is possible for something to be considered a computer? If so, it's not at all clear >from what you've written. ["Brian L. Stuart" <blstuart(a)bellsouth.net>] > (Almost no authors highlight the distinction between unbounded and > infinite. [...]) Well, not when writing about computation, at least. :-) This is probably because it's a very subtle distinction, one which I'm not convinced even exists for some models of infinity, and one which makes no difference whatever for (almost?) all uses. > Now here I do agree with the desire to define a computer in terms of > machines that can compute functions that are computable in a > Church-Turing sense. Hm, so you consider "analog computer" to be an oxymoron? > So if physical realizations of the computing ideal will always come > up short of the models of the Turning machine or the lambda calculus, (or most other models of computation) > then why do we ever study these models and why do we make > distinctions between recursive and recursivly enumerable? (a) Because we're theoreticians. (b) Because they're useful idealizations. > I'd say that if you can implement a simulation of a universal Turing > machine so that the range of it's computations is limited only by the > amount of addressable memory, then you have a real computer. Very nicely put - and aside from leaving analog computers out in the cold, I think I basically agree with it. > Notice that with the definition above, any computer can implement a > universal Turing machine and [...] such a machine can modify it's own > programming. Only after you make the shift from the universal Turing machine itself (which has fixed code) to the specific Turing machine being simulated by the uTm - and not then, even, if the Turing machine simulator is simulating the sort of Turing machine I studied, which has fixed code, set when its state transition table is designed. (The simulated machine's code (= state transition table) may change from one run of the simulator to the next, but not during a run.) > (Remember that a universal Turing machine interprets instructions > read from the tape.) Yes, and the tape may change - but that doesn't constitute changes in the code being executed by the simulated Turing machine. [Back to "William R. Buckley" <wrb(a)wrbuckley.com>] > I did not contradict myself. I admit fully that the ideal TM has > infinite memory. I also note that typical, contemporary computers > are not exactly a TM. Yet, they are computationally equivalent, Not if there are computations that can be performed on one but not the other. And there are computations that can be performed on a Turing machine with infinite - or unbounded - tape which cannot be performed on any existing, or foreseeable, computer. (As an example, consider computing Ackerman's function with arguments 100,100.) Therefore they are not computationally equivalent. [more "William R. Buckley" <wrb(a)wrbuckley.com>] >>> The important point for computation is closure, [...] > In the case of Turing closure, the notion is much broader. Turing > closure refers to the ability of a system to perform any and all > computations that can be expressed. This is not a prticularly interesting notion, as what computations can be expressed depends on your expressive notation. For example, if I choose the notation of real analysis and calculus, there are computations that can be expressed fairly easily which cannot be carried out by a Turing machine - because the Turing machines cannot work with real numbers, only discrete approximations to them. (Any numerically unstable iterated computation, applied to a transcendental number like pi, will do fine.) /~\ The ASCII der Mouse \ / Ribbon Campaign X Against HTML mouse(a)rodents.montreal.qc.ca / \ Email! 7D C8 61 52 5D E7 2D 39 4E F1 31 3E E8 B3 27 4B

22 years, 9 months

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Old HP-UX software via FTP

by sieler＠allegro.com

Hi, If anyone is interested in old HP-UX software (circa 1992 and/or HP-UX 8.x), check out: ftp://iworks.ecn.uiowa.edu/pub/comp.hp -- Stan Sieler sieler(a)allegro.com www.allegro.com/sieler/wanted/index.html

22 years, 9 months

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Anyone want a Dandetiger or two?

by bob＠copenhagen.cuug.ab.ca

I have two Xerox 1108 machines with the souped-up processor, colloquially known as a "Dandetiger". Both were working until a few months back when I finally moved everything I really needed onto a somewhat more modern machine. The hard disk drives are starting to make dry bearing kind of noises and may be a little hard to boot, but otherwise seem to work OK. I was having some problems with the floppy drives, but maybe that's just because all my 8-inch floppies are antiques. The monitors work well, except that I think there must be a sloppy connector somewhere: sometimes they sit silent for several minutes after power-on before suddenly making the flyback noises and coming to life. In addition to the basic machines I have a couple of "busmaster" cards, which allow the Mesa bus to be plumbed into a PC extension or multibus chassis. I have the source code releases (on floppy) for Intermezzo, Koto, and Lyric, and Koto Beta NoteCards. I also have copies of the LispUsers and Library files, the Koto source files, and floppy images taken before I started having problems with the floppy drives. In theory it is therefore possible to ftp this stuff back to one of the machines and remake the floppies as good as new. Assuming the RIAA doesn't sue me for copyright infringements I will be happy to supply CDs of this stuff to anyone who needs it. There is also a shelf full of manuals (1 set only) and assorted notes I have acquired along the way. Anyone interested in giving them a good home? I will give them away for the cost of shipping. Truly I am going to miss these machines, but I can't really afford the space to keep them, or the time to tinker with them. I don't always keep up with this list, so if you are really interested please e-mail me directly. | "... both Republicans and Democrats stood Bob Bramwell 60 Baker Cr. NW | with me in the Rose Garden to announce their ProntoLogical Calgary, AB | support for a clear statement of purpose: +1 403/861-8827 T2L 1R4, Canada | you disarm, or we will." | - GW Bush re: Iraq, 5 Oct 2002

22 years, 9 months

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HP 75000

by browe58＠comcast.net

hp 75000 mainframe for sale w/ following modules: _ e1405a command module _ e1679a sonet/sdh timing reference (shown in photo but has been sold) _ e1671a sonet/sdh transport oh generator _ e1693a atm generator 155/662 _ e1694a atm receiver 155/662 _ e1672a sonet/sdh transport oh receiver _ e1662a sonet/sdh optical i/f 155/662 mb/s _ e1663a sonet/sdh electrical interface guaranteed fully functional and comes w/ 7 day return policy if faulty. contact me at browe58(a)comcast.net if interested. thanx. bill

22 years, 9 months

2
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How many of you like HP41C calculators?

by dwight.elvey＠amd.com

>From: ard(a)p850ug1.demon.co.uk >> >> In the case of Turing closure, the notion is much broader. Turing closure >> refers >> to the ability of a system to perform any and all computations that can be >> expressed. Now, there are problems with this notion, since Godel has shown >> that some expressible computations in fact can not be computed. Still, the >> general notion is: all that can be computed is computable upon a TM, and a >> TM >> is capable of computing all computations. > >Care to explain this in a way which is not either self-contradictory >('There are functions that can't be computed, but a Turing machine can >computer all functions) or tautological ('A Turing machine can compute >all functions that can be computed on a Turing machine')? > >-tony > Hi I believe that Turing proved that if it can be calculated by a computer, it can be computed on a Turning machine. It is the reverse that may not be true since the computer may not be flexable enough. Turing didn't make comments as to how large a Turing machine was to do this, only that it could. Dwight

22 years, 9 months

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Sharp MZ-80K Power Supply Question

by kevan＠heydon.org

Hi A couple of days ago the power supply on my MZ-80K released its magic smoke (a rather nice red colored smoke at that!) from capacitor C501. The machine carried on working throughout, although I did power down as soon as the smoke release was seen/smelt. So the question is, does anybody out there got documentation or can easily get inside their 80K PSU to find out the value of this capacitor so it can be replaced with a new one. Many Thanks -- Kevan

22 years, 9 months

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Dec Rainbow prehistory

by dave＠mitton.com

On 11/18/2003 01:23 AM -0600, Tom Jennings <tomj(a)wps.com> wrote: Tom wrote lots of good things... >Some BOZO designer had, I assume arrogantly, put all the video >interrupts (vert, horiz retrace, etc) starting at 00020h, which everyone >knows is where MSDOS has it's software interrupts. They were in a PAL or >something, and could not be moved. Well, I won't defend the quirks of the Rainbow... (more later) But you're forgetting that the Rainbow 100A design pre-dates the IBM PC, it was first designed as a CP/M machine. MS-DOS came later. And IBM put interrupts on the PC in places that Intel's data sheets documented as RESERVED! IBM did not pay attention to Intel's recommendations and violated a few of their support device allocations. DECnet-DOS was developed in the DECnet group inspite of the Rainbow group at first. Their marketeer felt that Corvus Omninet was going to be the big thing. Only later did we integrate when they got into LAN Manager support. Our first target was the IBM XT with a 3Com 3C501 Ethernet board, and the Rainbow running DDCMP on the serial port. We weren't going to wait for the Rainbow-150 which would be a more industry compatible system. When the IBM AT appeared, that scotched the RB-150 and lead, eventually... to the VAXmate. (Thank KO for the delays) I remember the MHFU watchdog and the Vertical Retrace Interupt. The DECnet kernel basically ran as an interrupt driven background TSR. On the IBM PC we easily shelled off the 1C clock tick, but on the Rainbow, we had to build "clever" reentrancy shells around several interrupts to avoid some wierd stack overflow or reentrancy into the video BIOS. The Rainbow at least had a decent UART with a multicharacter FIFO. I had no problem doing 19.2kbs using C routines. That stupid XT UART could barely do 9600 with an optimized state driven assembly routine. UART FIFOs didn't appear until the IBM PS/2 Model 50. Dave (has two HP16Cs and runs the wprn program)

22 years, 9 months

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How many of you like HP41C calculators?

by rhudson＠cnonline.net

A lot of the talk here is about really BIG machines (fill a rack, or two or three) but how many of us like pocket sized machines? HP 41C? I just found a wonderful emulator for the 41C! http://library.hp41.org/LibView.cfm?Command=Download&ItemID=23212 Is anyone here a sometime member of PPC? ron. (who's got one of his favorite toys back again)

22 years, 9 months

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OT: Need power pinout for Dec Hinote Ultra II

by ian_primus＠yahoo.com

I know this isn't on topic yet, it's not old enough, but I thought I'd check here just in case. I recently ran across a really cute little laptop. It's a Digital Hinote Ultra II model P8X. Unfortunately, I don't have the power adapter for it. It uses a small, three pin connector. The bottom of the laptop says that it takes 11V 2.7A, but it doesn't list the pinout of that connector... Googleing didn't turn up anything helpful. So, I figured I'd check here, and if all else fails, I could always take it apart and see what that connector goes to, but I don't want to mess with taking it apart if I can help it. Laptops are always a pain to take apart and put back together... Also, has anyone had experience rebuilding the battery packs in these? Mine is no doubt dead, and I would imagine it would take standard battery cells inside. Once I get this to power up and verify that the battery is dead, I plan on rebuilding it with new cells. Thanks! Ian Primus ian_primus(a)yahoo.com

22 years, 9 months

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HP 2000 TSB simulated?? YES! 2000 E, and F and Access have all be en running.

by MGemeny＠pgcps.org

Hi folks, I just want to express my thanks for all of the support that I have gotten this week from the group. Thanks you all so much. It has been wonderful chatting with so many people with interest in the HP2000 product line. For anyone who I have not already told, I did start up an HP 2000 Access simulation for people to play with. Please don't invest a bunch of your time keying in things as I'm not keeping a regular backup schedule. If I have problems with it, I'll just reload it from the last backup tape image. I have a web page that has a link on it to start your telnet session and it also gives you a few tips and pointers. This will also give us a place to link to other web pages and running systems. <http://www.pgcps.org/~mgemeny/access> http://www.pgcps.org/~mgemeny/access This image has a lot of other accounts on it, and they have a lot of programs in their catalogs. If you want access to more of the system, just drop me a note. I would be glad to send you instructions on how to browse deeper into this system. From the response I have gotten I would estimate that several systems will be running 24/7 by the end of next month. So user accounts on stable systems should be available. I would also guess that we will be grooming SIMH for another 6mo or so and that much progress in recovery of libraries will take place over the coming year. And, by the way, since this thread did start out talking about star-trek, one version is in your group master account. For a listing of the group type "gro", to get a program from this list just put and "*" in front if the name. The break key is not working yet so you may want to list it and know how your going to get out of it before you run it. Please report hung port to my email. Don't be shy about it, it's not your fault, it's mine. Please don't make too much of a mess. You won't be hurting me, just preventing others from enjoying the same pleasure you had. Enjoy, and Thanks again, Mike Gemeny.

22 years, 9 months

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OSI Systems

by richardwhaley＠hotmail.com

I have a 6 foot long shelf of OSI documentation and about 8 boards (working I think). Are you interested in these? Richard L. Whaley 321-277-1341 (USA) _________________________________________________________________ Say “goodbye” to busy signals and slow downloads with a high-speed Internet connection! Prices start at less than $1 a day average. https://broadband.msn.com (Prices may vary by service area.)

22 years, 9 months

1
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Byte Magazines

by roger161uk＠yahoo.co.uk

I have the following issues of Byte Magazine. Unfortunately, they take up a fair amount of space on my office shelves and, as a result, I am contemplating getting rid of them: despite them containing loads of good information, I just don't have time for it anymore :-( Anyway, individual copies are available if anybody has a collection with missing copies and, I am happy to send larger numbers of copies to anybody interested in them, the only provision is that postage and packing must be paid, at cost (or thereabouts), by the receiver. If I receive numerous contacts for specific copies of magazines, or for specific series I may place the magazine or series on eBay or another auction site as a means to resolving the contention, proceeds going to a local old folks home. All are in good condition, although clearly some are in better condition than others. I herewith enumerate all copies, as I do not have a complete set - certain months/years are missing. January 1988 December 1989 May 1989 September 1989 February 1990 March 1990 April 1990 June 1990 January 1991 April 1991 July-December 1991 January-November 1992 January-December 1993 (except February, July and October) January-December 1994 January-December 1995 (except for August) January-December 1996 February-December 1997 January-April 1998 July 1998 Best regards, Roger ________________________________________________________________________ Want to chat instantly with your online friends? Get the FREE Yahoo! Messenger http://mail.messenger.yahoo.co.uk

22 years, 9 months

1
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PDP8A Questions

by nbreeden2＠comcast.net

All, I was recently given a PDP8A, it's the model with dual power supplies and the 20 slot backplane. It has both the mini-panel and the operators panel. I've been working to get the system operational and have several questions: ===== The unit won't power up, I have been able to troubleshoot this down to the Triac (D7) on the BA8-C that is used to switch AC power to the main transformer. I believe this Triac is bad. (Note: I do have AC power to T1 on the BA8-C PCB.) With the Triac bypassed the system comes up and basic items check out from the operators panel. Does anyone know what a replacement Triac part number would be? I only see what I believe are DEC part numbers. ===== In the print set for the BA8-C the circuit that controls AC power is shown, the circuit uses an opto-isolator. In the schematic one side of the opto-isolator's LED goes to J12-B2, the other side of the opto-isolator is labeled OC1-2 (OptoCoupler 1 pin 2 I assume). Does anyone know where this pin actually goes? ===== I'm assuming that the G8019 board controls switching of the AC power via the opto-isolator. Is this a correct assumption? ===== I have an RL02 controller/drive/disk with the system, what steps do I need to take to boot from this drive? I don't have an operators manual at the moment. ===== -Neil

22 years, 9 months

2
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Fw: Grandfather system RTE6/VM?

by jwest＠classiccmp.org

----- Original Message ----- From: "Jay West" <jwest(a)classiccmp.org> To: "Ed Sharpe" <esharpe(a)uswest.net> Sent: Sunday, November 16, 2003 8:08 PM Subject: Re: Grandfather system RTE6/VM? > You don't have to pop out the chips, just pull out the rom card, A1 or A2, I > think it's A2 going from memory. Look at the card and see what numbers are > on the white and gold chips that are socketed :) > > J > ----- Original Message ----- > From: "Ed Sharpe" <esharpe(a)uswest.net> > To: "General Discussion: On-Topic Posts Only" <cctech(a)classiccmp.org> > Cc: <jwest(a)classiccmp.org> > Sent: Sunday, November 16, 2003 5:31 PM > Subject: Re: Grandfather system RTE6/VM? > > > > well I have the set that is in the 2100 in the 2000 access system here. > > not a loose set. ( shall we call it embedded?) > > > > I would live in fear of poping them out though...... > > > > ed! > > > > ----- Original Message ----- > > From: "Jay West" <jwest(a)classiccmp.org> > > To: "ed sharpe" <esharpe(a)uswest.net>; "General Discussion: On-Topic and > > Off-Topic Posts" <cctalk(a)classiccmp.org> > > Sent: Sunday, November 16, 2003 12:07 PM > > Subject: Re: Grandfather system RTE6/VM? > > > > > > > You're quite sure you have a set of the IOP firmware for the 2100 cpus > Ed? > > > If so, good to know. I really want to get mine backed up as they seem to > > be > > > the only ones around. However, I got a new prom burner and it is acting > > very > > > flaky so I'm a little afraid to put my chips in it. > > > > > > Jay > > > ----- Original Message ----- > > > From: "ed sharpe" <esharpe(a)uswest.net> > > > To: "General Discussion: On-Topic and Off-Topic Posts" > > > <cctalk(a)classiccmp.org>; <classiccmp(a)classiccmp.org> > > > Sent: Saturday, November 15, 2003 11:16 PM > > > Subject: Re: Grandfather system RTE6/VM? > > > > > > > > > > we have a set too Al, but alas no way to read them.... > > > > It is up to you Jay! > > > > ed! > > > > ----- Original Message ----- > > > > From: "Al Kossow" <aek(a)spies.com> > > > > To: <classiccmp(a)classiccmp.org> > > > > Sent: Saturday, November 15, 2003 5:54 PM > > > > Subject: Re: Grandfather system RTE6/VM? > > > > > > > > > > > > > > > > > > > I'll try to dump the microcode proms this weekend > > > > > > > > > > Dumps of the firmware is now up at > www.bitsavers.org/HP/1000_firmware > > > > > including the IOP firmware the 21MX. > > > > > > > > > > Jay, since you appear to have the only surviving copy of the 2100 > IOP > > > > > firmware, it would be good to get the proms read. > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > >

22 years, 9 months

3
10
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Kennedy 9622 SCSI 9-track manual?

by waltje＠pdp11.nl

Hi all, I got a 9622 on loan so I can read some old tapes. Sadly, the thing is semi-dead, so I'll have to do some maint on it first (basically, replace its fan, clean it out completely and reset its SCSI ID to something other than 0 ;-) Does anyone have a manual of this beastie? Cheers, Fred -- Fred N. van Kempen, DEC (Digital Equipment Corporation) Collector/Archivist Visit the VAXlab Project at http://www.pdp11.nl/VAXlab/ Visit the Archives at http://www.pdp11.nl/ Email: waltje(a)pdp11.nl BUSSUM, THE NETHERLANDS / Sunnyvale, CA, USA

22 years, 9 months

1
0
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Simple serial to ethernet question

by jpl15＠panix.com

Regarding the recent (very much info!) thread about serial to network devices, terminal servers, etc... I have a Dumb Analog Engineer Question. And my DAEQ is this: I gots a DEC PDP 11/44 sitting in my garage (heated) and I would like to have the Terminal Peripheral Devices (TPD) in my Office (O). I just want a couple-three VT-type thingies and an LA120, or 36 or whatever. So, if I understand Things: I hook N ports from the 11/44 serial farm via RS232 to the ports on the TS, thence by CAT5[some_networking_protocol] to the TS in the O, and from the corrresponding N ports ports on the O TS to the various TPDs in the aformentioned O. Right? This saves running multiple RS232 lines from the 'Puter to the Toobz, among other things - like being able to play with one's Legacy Computing Device (LCD) whilst slaving away at the Workplace.... And, if a pair of Terminal Servers is what I'm looking for - I assume 8-channel pairs are cheap? Any reccomendations for this specific task? Cheers John

22 years, 9 months

3
3
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Telling DECTape & LINCTape Drives Apart?

by aek＠spies.com

Physically speaking, how do you tell the difference between a DECTape drive and a LINCtape drive? -- By the time PDP12's were built, DEC was using the same transport (TU55's, later TU56's) for either format. LINCtapes are loaded on the right-hand reel, and forward tape motion is counter-clockwise. DECtapes are loaded on the left-hand reel and forward tape motion is clockwise. The only other gotcha is the timing track is the opposite polarity between the two formats.

22 years, 9 months

3
2
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LGP-30 software & notes made available

by tomj＠wps.com

I've been corresponding with Bob Lilley, an LGP-30 programmer (no, not still), who so kindly made me an electronic copy, and allowed me to post it. It's available at: http://wps.com/projects/LGP-21/Bob-Lilley/index.html Sorry, it's in the form of three large PDFs.

22 years, 9 months

2
4
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DEC Equipment

by ohh＠drizzle.com

I mailed this off to Phil Spanner in reply to his post, and just realized I forgot the CC: I meant to give to the list. :) So here goes: ---------- Forwarded message ---------- Date: Fri, 21 Nov 2003 11:10:21 -0800 (PST) From: O. Sharp <ohh(a)drizzle.com> To: Phil Spanner <pspan(a)amerytel.net> Subject: Re: DEC Equipment Hi! Thanks for your posting to the ClassicComp mailing-list: > A company that has been in the depot repair business of DEC equipment, > for the last 20 years, is about to shut down their repair lines for the > DEC equipment. They obviously have prints, diags and test beds that > they are going to be selling. I'm sorry to hear they're going out of business. My condolences. [Late note: on re-reading this, I just realized it looks like only the DEC repair line is shutting down, rather than the whole company. <slaps forehead> Aiya! Silly me.] I have kind of an unusual question. If this company, which has been repairing DEC computers, is going out of business, it may mean that their customers, having one less service option available, might soon consider retiring whatever DEC machines they're presently using. I'm currently looking for a PDP-12, and would hate to see one end up being scrapped in the belief it was no longer useful. I don't doubt that other DEC machines and other ClassicComp posters could make useful connections as well. Soooo... my question would be: Does the company have any idea what their former customers are considering doing with their equipment, and if any _are_ considering selling or scrapping - most particularly the older DEC models, which are becoming of historic value - could those customers somehow be made aware of the ClassicComp community's interest in older equipment before they take irreversible steps? I realize that may not be the sort of question you were expecting. :) Nonetheless I'd appreciate it if you could consider it, and see if there might be some sort of appropriate way to address it. ...On a much simpler note, if you have anything PDP-12 or DECTape-related hanging around the warehouse, I wouldn't mind the chance to put in an offer. :) :) Thanks very much for your time, and for making yourself known to us! It's appreciated! -O.-

22 years, 9 months

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Dec Rainbow prehistory

by dave＠mitton.com

On 11/20/2003 01:19 AM -0600, cctech-request(a)classiccmp.org wrote: >Date: 19 Nov 2003 16:00:12 -0800 >From: Tom Jennings <tomj(a)wps.com> >Subject: Re: Dec Rainbow prehistory > >On Tue, 2003-11-18 at 22:29, Dave Mitton wrote: > >.<snip>.. >Yeah, they were stupid too. I've got two words for the IBM PC ROM code: >ug lee. The biggest steamroller wins. Well it wasn't obvious at first where we were going. I was not involved with the design of the Rainbow, but I was involved with the New England Computer Society, a some what professional hobbyist group. Many of us thought the original IBM PC was not a serious product. Remember it wasn't until the XT that it got a hard drive. > > I remember the MHFU watchdog and the Vertical Retrace Interupt. The > DECnet > > kernel basically ran as an interrupt driven background TSR. On the IBM PC > > we easily shelled off the 1C clock tick, but on the Rainbow, we had to > > build "clever" reentrancy shells around several interrupts to avoid some > > wierd stack overflow or reentrancy into the video BIOS. > >Ahh... now I get it. I wasn't told even this much back then!! We weren't told. I/we had to figure it out. It became quickly apparent there was a problem, and only by debugging around the system did we figure out what to do. The VR routine re-enabled interrupts and continued doing video memory things. If you interrupted it, for say comm I/O, and then re-enabled interrupts yourself, and you did not return to it by the next VR interrupt, it would corrupt itself as it wasn't written for reentrancy. How we dealt with this, changed over time, as some of my team got "cleverer" in later releases. But even if it could be made re-entrant, you really want it to run to completion instead of stack up anyways. A semaphore shell on that interrupt routine, and cross-checking this flag in our other interrupts, would make sure it was done before we did any major time consuming work with interrupts re-enabled. ohh gawd, you woke the forgotten memory of the shared HW/SW interrupt vector.... noooo ... I won't go there..... <shreeking> >I do recall some severe stack-depth problem, I had to switch stack >pointers in the I/O drivers somewhere I recall. I think. Wish I had the >code! > > > The Rainbow at least had a decent UART with a multicharacter FIFO. I had > > no problem doing 19.2kbs using C routines. That stupid XT UART could > > barely do 9600 with an optimized state driven assembly routine. UART > FIFOs > > didn't appear until the IBM PS/2 Model 50. > >Yes, when DEC applied themselves without weird non-functional agendas >they made really nice stuff. It made a nice Fido bulletin board (umm but >not the 100A's... :-( I ran a FIDOnet on one replacing my S-100 CP/M CBBS system... The later of which I just sold on eBay a few weeks ago. Dave.

22 years, 9 months

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Regarding DEC equipment

by pspan＠amerytel.net

Hi All, With the responses I realized more info is needed. The equipment is located in the Upper Midwest. The closest, largest city would be Minneapolis/Saint Paul. I do not currently have an inventory list but will try to obtain one. Thanks again. Phil

22 years, 9 months

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DEC Equipment

by pspan＠amerytel.net

Hello to all, This is my first post to the list, which I thought would be of interest. A company that has been in the depot repair business of DEC equipment, for the last 20 years, is about to shut down their repair lines for the DEC equipment. They obviously have prints, diags and test beds that they are going to be selling. If anyone has an interest please contact me, either on the list or privately at: pspan(a)amerytel.net Thank you for your time. Phil Spanner

22 years, 9 months

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ssi-263ap

by jpeterson＠harshenviro.com

Hi Ben - Our company is liquidating the inventory for a company we acquired a few years ago and while looking up parts to see what they were and their value, I googled your thread. I have 8 SSI-263AP's I need to get rid of. What are they worth to you? Regards, Jim Peterson jpeterson(a)harshenviro.com

22 years, 9 months

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curious??

by jmelt＠nemonet.com

I WAS WOUNDERING IF YOU MIGHT HAPPEN TO HAVE A MANUAL FOR A TEKTRONIX P6465 PATTERN GENERATOR PROBE? OR IF YOU DONT HAVE ONE WHERE I MIGHT BE ABLE TO GET ONE AT. I WOULD GREATLY APPRICIATE IF YOU WOULD E-MAIL BACK AT THIS ADDRESS OR AT CTE20303(a)CENTURYTEL.NET THANK YOU VERY MUCH FOR YOUR TIME.

22 years, 9 months

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CD-ROM on VAXstation 3200

by sebastian.brueckner＠epost.de

Hi! I'm trying to boot my VAXstation from CD-ROM since I don't have a tape drive. It has an Emulex UC08 controller. The internal hd and an internal MO drive are connected to the first port, to the second port I attached an external Plextor UltraPlex 32. I updated the UC08 to rom revision G143R, just to be sure and configured a cd-rom drive on the second port, scsi id 1. When I try to boot from the CD, it is ejected after a few seconds and nothing more happens. Every time i put the cd back in it is ejected again. The same happend when I tried a old SUN caddy CD drive (Sony OEM). Any hints? Regards, Sebastian ---------- This is what the machine spits out: >>>show device UQSSP Disk Controller 0 (772150) -DUA0 (RA81) -DUA1 (RA81) -DUA2 (RRD40) UQSSP Disk Controller 1 (760334) -DUB0 (RRD40) Ethernet Adapter 0 (774440) -XQA0 (08-00-2B-10-1B-D5) >>>b dub0 (BOOT/R5:0 DUB0) 2.. Here it ejects the cd and hangs forever.

22 years, 9 months

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Telling DECTape & LINCTape Drives Apart?

by ohh＠drizzle.com

Sooooo not too long ago there was a neato discussion of the differences between DECTape format and LINCtape format. I've got a question that's a bit different: Physically speaking, how do you tell the difference between a DECTape drive and a LINCtape drive? It's been years since I've had a chance to see either kind of drive, and since I'm doing more digging though surplus places lately I thought it'd be good to be able to spot the difference in case I actually get lucky and find one. O'course, if they're actually _marked_ "DECTape" or "LINCTape", it'd be relatively easy. :) Is it that straightforward, or is the difference more subtle (or, indeed, is the difference at the interface end and not with the drive unit at all)? (And as long as we're on the subject, does anyone still manufacture tape and reels for DEC/LINCTape users?) -O.-

22 years, 9 months

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Otrona Attache 8:16 diskette contents

by tomj＠wps.com

I've just posted the entire contents of every Otrona Attache 8:16 diskette I have, including factory distribution CP/M-80, proprietary programs and sources of various small things. A few things were written by my two brothers, Gregg and Frank, mixed in at random (this machine kicked around the family before I got it back). http://wps.com/archives/Otrona-Attache-8-16-diskettes/index.html (There's something ugly with the HTML but it's functional.)

22 years, 9 months

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How many of you like HP41C calculators?

by blstuart＠bellsouth.net

der Mouse wrote: >> But is not LIFE on the molecular level some thing like a bunch >> computing machines that computes structure rather than logic. > > Something like, maybe. But since chemical interactions involve > randomness randomness coming from the underlying quantum mechanics and > thus being, as far as we can tell, true randomness...nothing > deterministic is an accurate model. To make another semi-random connection here, von Neumann was very into the emergent behavior of simple automata known as cellular automata. IIRC he was the first to prove that there existed self-replicating CAs. > And that includes nondeterminstic Turing machines, as I studied them, > since they don't pick one possible transition randomly but instead take > all possible transitions (which is why the power set construction works > to determinize such a machine). Interestingly there does exist a model called a probabilistic automata that operates in just that way. In fact, if you define what accept means the right way for the model, it can be shown that there are non-Turing languages that can be accepted by a PA. Brian L. Stuart

22 years, 9 months

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Wavemate Bullet info/docs needed

by r_beaudry＠hotmail.com

Hello all, I recently got a bare Wavemate Bullet board, and would like to get it up and running. I received some 8" floppies with it, and they appear to be boot disks for the board. All but one was readable on another CP/M system. I'd like to get docs for it, or pointers to more information on the board. It's a Z-80 based board, and has the CPU, DART, CTC, DMA, and PIO chips. Looks like it has some RAM (16 MB8264), and some glue logic, plus a Fairchild MB8877. It is labeled "Wavemate (c) 1981 Rev. B Hawthorne, CA. Made in U.S.A." There are two 10-pin headers marked "J3" and "J4", two 50-pin headers marked "J1" and "J6", and two 34-pin headers marked "J2" and "J7". I suspect J3 and J4 are serial I/O, as the traces go to a set of 1488/1489 chips. J1 and J2 are next to each other on the right of the board, and J7 and J6 are next to each other on the top of the board. There's also another 34-pin header near the top right marked "J5". There's an 8-position DIP switch labeled "SW1". Power appears to be from a plug that loks like a typical PC-style drive power connector. I'd like to verify the pinout, though, if possible :-) Curiously, there's no EPROM, nor even a socket for one. My luck, it's some missing part :-( I'd appreciate any help! Thanks, Rich B.

22 years, 9 months

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power connection for 8" drive -- tandon tm848-01

by frustum＠pacbell.net

I have an 8" drive that I intend to connect to a catweasel card for the purpose of getting the bits off of a lot of old PT-DOS disks for my Sol computer archive project. If I can accomplish that, then I'll extend my Sol emulator to allow running PT-DOS on the emulator. Supposedly the floppies have a lot of interesting stuff on them, including source code to a lot of PT software. After an hour of googling, I am unable to find what power to feed it. The connector on the back is two 3-pin molex connectors and looks like this: +-------+ | X X X | +-------+ | X X | +-------+ Yes, the middle one of the lower pair is missing. I assume the power is +5, -5, +24, and GND, maybe +12 or -12 too. But guessing isn't good enough. Does anybody know for sure what power to feed each pin? I have found information on how to build a 34-pin to 50 pin cable to mate the 8" drive to the catweasel, so I think I have what I need there. Thanks for any help.

22 years, 9 months

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COSMAC: Can U ID this device? (Infinity UC-1800)

by tomj＠wps.com

re: Infinity UC-1800 I'm reasonably sure it's a "trainer", eg. an RCA 1802 in a box, hex keypad and switches and LED display with which to poke in "demo" toy programs. It seems to operate, inscrutably. (Here you can see I try to enter an 8080 CALL instruction to no avail) (kidding). It has an "expansion" connector available in the back. There was a leaking NiCd battery pack I clipped out and tossed, but otherwise it's complete (sans and accessories it came with). Anyone have any documentation? http://wps.com/temp/inf1.jpg and http://wps.com/temp/inf2.jpg

22 years, 9 months

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How many of you like HP41C calculators?

by blstuart＠bellsouth.net

While there have been other follow-ups to this thread, I'm picking this one as the point I jump in. This is a bit long and for those of you who don't see a point in this sort of "angels on the head of a pin" discussion feel free to delete. If you want to criticize me for engaging in such a discussion because there's no ROI there, then you can just kiss my big, white... :-) Sorry, too much bean counter frustration at work lately. Another way of looking at this message is that it was suggested that a professor be asked. Well, be careful what you ask for, you might get it:-) >> There are several architectures for computers, with all being the >> equal of the Turing machine. > > That's interesting, because not one of the devices I have called > computers, used as computers, or heard/seen called computers, is even > theoretically equivalent to a Turing machine. In particular, they all > have finite storage. It is indeed correct that in an absolute sense physical computers can be modeled by finite automata and don't need a Turing machine to model them. And it's correct that the reason for this is that the physical computer is finite and a Turing machine's tape is unbounded. (Almost no authors highlight the distinction between unbounded and infinite. But keep in mind that for any recursive function, the Turing machine must finish in a finite amount of time and therefore can only use a finite amount of tape. However, there is no a priori bound on that finite size.) >> Frankly, the Turing machine is the definition of a computer, > > I don't know where you got _that_, but it certainly doesn't match my > understanding, usage, or experience of others' ditto. As I remarked > above, there aren't any computers by that definition. Now here I do agree with the desire to define a computer in terms of machines that can compute functions that are computable in a Church-Turing sense. Of course in doing so we have to keep in mind that we are only looking at bounded approximations. In other words, there are some recursive functions that we can never completely implement with a finite physical computer. So if physical realizations of the computing ideal will always come up short of the models of the Turning machine or the lambda calculus, then why do we ever study these models and why do we make distinctions between recursive and recursivly enumerable? As I see it, the answer lies in the enormous size of the finite automaton that a physical computer realizes. Take even a small (by today's standards) machine with 1MB of memory. Ignoring secondary storage, the machine has 2^8388608 states. Since there are only about 2^34 nano-seconds per year, it would take 2^8388574 years to go through all the states at a rate of one new state per nano-second. Now, of course, one doesn't have to visit all of the states of a finite automaton to recognize an input string. But this observation suggests that regular languages make a poor model to describe the physical computers we build. Add to that the fact that the way that deterministic models (like RAM or deterministic TMs) handle those regular languages most naturally reognized by non-deterministic FAs is by exploding the number of states in a similar way. So the bottom line is that the regular expression model does a poor job of describing the types of interesting problems we use computers for. Now if we flip the perspective and ask about what interesting things can be done on a Turing machine, we find a similar issue. In order for the answer to do us any good, we must get it in our lifetime which implies that there is an upper bound on the size of the tape we will use in an interesting computation. Of course, this gets us right back to the same issues we have with the physical computers. Once I set an a priori bound, the set of languages recognizable is a subset of the regular languages. But once I say that, then all of the structure in the language hierarchy collapses. However, we view the question of Church- Turing computability and the questions of NP-Completeness as something more than just mental self-gratification. Therefore (you knew I had to get there eventually), the Turing machine is a powerful model to describe physical computers just as it's a powerful model to assess the limits of computation in the abstract. Furthermore, it's a more useful model than those that are actually theoretically equivalent. Those who would argue that I've shifted the discussion away >from the semi-original issue of defining a computer have a good point. Just because the Turing machine is one of the best ways to abstractly model the physical computer doesn't necessarily mean that it should define said computer. So how would I attempt to couch the definition of a physical computer in terms of a Turing machine? I'd say that if you can implement a simulation of a universal Turing machine so that the range of it's computations is limited only by the amount of addressable memory, then you have a real computer. I am aware that Cohen defines the term computer in a more abstract sense and I understand why he does so. (By the way, his is one of my favorite books on the subject.) And if I'm wearing my theoretician's hat, then I'm likely to use the terminology the same way. But when I'm wearing my engineer's hat and am appreciating the design of classic hardware and when I'm wearing my historian's hat and am trying to classify early machines, then I'm more likely to use a definition like I've suggested above. If you've stayed with me this long, you have my condolances. However, there's one more interesting point that comes out here. This sub-thread was sparked by the question of whether the potential of self-modifying code was necessary in order to be a computer. Notice that with the definition above, any computer can implement a universal Turing machine and unless you engage in some unnatural limitations, such a machine can modify it's own programming. (Remember that a universal Turing machine interprets instructions read >from the tape.) A more prosaic way of looking at this same point is that I don't need a von Neumann architecture to implement an interpreter which interprets self-modifying code. And if computing theory teaches us anything, adding or removing levels of abstraction doesn't affect the basic power of the model. My apologies for being so long-winded. Brian L. Stuart

22 years, 9 months

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COSMAC boards

by tomj＠wps.com

I had no idea they'd be so popular... I live in Los ANgeles, the Cosmac jobbies are in Los Alamos NM, about 1000 miles from me. However, I go there twice a year anyways, so I will buy them all, drag them home and email the list. I don't have any great interest in them, and I'll only want to recover costs. I may have taken photos of them, if so, I'll contact a local (to NM) friend and see if they can pick them up and ship, etc. Don't hold your breath, it will take a while.

22 years, 9 months

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8086 (was Re: more talking to the press.)

by melamy＠earthlink.net

being an engineer that worked in assembly language on many micros before and after the 8086, the segmented architecture was not that hard to handle and actualy had many side benefits such as code size and more efficient use of the bus bandwidth. The pdp11 may have been better overall, but there is no comparison on terms of price, availability, and being able to get the job done for the millions of PC users. best regards, Steve Thatcher >--- Original Message --- >From: "Eric Smith" <eric(a)brouhaha.com> >To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk(a)classiccmp.org> >Date: 11/13/03 3:24:07 PM > "Hans Franke" <hans.franke(a)mch20.sbs.de> wrote: >> to me it's the way the memory is handled >> that makes the 8086 the great CPU it is > >What, the 64K segments that alias on paragraph boundaries? >Yecch! What a kludge! The PDP-11 had better memory management >for a 64KB address space at least seven years earlier. > >

22 years, 9 months

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Dec Rainbow prehistory

by jba＠sdf.lonestar.org

I do have a Rainbow 100 home page, but I haven't updated in a while. Things have been extremely busy at home this past summer, but I will try to update it more often now that I'm settled into my new house. I always love any extra information. BTW, who scanned all those Rainbow Tech Docs now available at ftp.update.uu.se? That was quite the task, and I was glad to find them available! Oh, and of course, the Rainbow 100 web page is at: http://www.classiccmp.org/rainbow/ -Jeff jba(a)sdf.lonestar.org SDF Public Access UNIX System - http://sdf.lonestar.org

22 years, 9 months

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If anyone is interested...

by alhartman＠yahoo.com

Whilst cleaning out a closet I found the following items that may be of interest to people on this list... 1. A pair of 8-bit (XT) Corvus Omninet Transporter Cards. One is the older LONG card, and the other is a Gate Array Card. 2. A Box of Miscellaneous Tops Hardware and Software. 3. Two copies of Lantastic Client Software, Complete. I can also supply some 16-Bit NE-2000 Compatible 10megabit Ethernet Cards to go with these. 4. A box full of SCSI to Ethernet Adapters. Useful to put SCSI Devices (like a Printer or an Old Mac) on an Ethernet Network. I have Powersupplies for these, but no SCSI Cables. If interested, drop me a line. Not looking for much. Hate to throw this stuff out, especially if someone else has some use for it. Al __________________________________ Do you Yahoo!? Free Pop-Up Blocker - Get it now http://companion.yahoo.com/

22 years, 9 months

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power connection for 8" drive -- tandon tm848-01

by aek＠spies.com

> I intend to connect to a catweasel card for the > purpose of getting the bits off of a lot of old PT-DOS disks Aren't SOLOS discs hard-sectored? The 848 user's manual is at www.bitsavers.org/pdf/tandon

22 years, 9 months

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DEC Rainbow 100 website

by jba＠sdf.lonestar.org

Hey everyone, I just wanted to announce thta I will be opening a new Rainbow 100 website on Saturday, Feb 8. The site is located at: http://www.classiccmp.org/rainbow Right now, all that is there is an announcement. I hope everyone will take a moment top visit once it's open. I haven't been keeping up with everything in the Rainbow commumnity. I noticed that all the schematics have been posted on the Update (ftp.update.uu.se) archives. Who took the time to do this? I just wanted to thank them. Anyway, visit the page if you get a chance! Thanks! -Jeff jba(a)sdf.lonestar.org SDF Public Access UNIX System - http://sdf.lonestar.org

22 years, 9 months

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Pinging Mike Haas was Warning: could not send message for past 4 hours

by rigdonj＠cfl.rr.com

Mike, I got your messages but E-mail to you is still bouncing. This is one of FOUR bounced messages that I got this morning. You need to contact your ISP and find out what the hell is going on. Joe >Date: Thu, 20 Nov 2003 01:58:55 -0500 (EST) >From: Mail Delivery Subsystem <MAILER-DAEMON(a)ms-smtp-02.tampabay.rr.com> >Subject: Warning: could not send message for past 4 hours >To: rigdonj(a)cfl.rr.com >Auto-submitted: auto-generated (warning-timeout) >Original-recipient: rfc822;rigdonj(a)cfl.rr.com > > ********************************************** > ** THIS IS A WARNING MESSAGE ONLY ** > ** YOU DO NOT NEED TO RESEND YOUR MESSAGE ** > ********************************************** > >The original message was received at Wed, 19 Nov 2003 21:40:05 -0500 (EST) >from 73.151.202.68.cfl.rr.com [68.202.151.73] > > ----- Transcript of session follows ----- ><dogas(a)bellsouth.net>... Deferred: Bad file number >Warning: message still undelivered after 4 hours >Will keep trying until message is 2 days old >Reporting-MTA: dns; ms-smtp-02.tampabay.rr.com >Arrival-Date: Wed, 19 Nov 2003 21:40:05 -0500 (EST) > >Final-Recipient: RFC822; dogas(a)bellsouth.net >Action: delayed >Status: 4.2.0 >Remote-MTA: DNS; mx01.mail.bellsouth.net >Last-Attempt-Date: Thu, 20 Nov 2003 01:58:55 -0500 (EST) >Will-Retry-Until: Fri, 21 Nov 2003 21:40:05 -0500 (EST) >Received: from afdldashlas (73.151.202.68.cfl.rr.com [68.202.151.73]) > by ms-smtp-02.tampabay.rr.com (8.12.10/8.12.7) with SMTP id hAK2e2KK028102 > for <dogas(a)bellsouth.net>; Wed, 19 Nov 2003 21:40:05 -0500 (EST) >Message-Id: <3.0.6.32.20031119213620.00855870(a)pop-server.cfl.rr.com> >X-Sender: rigdonj(a)pop-server.cfl.rr.com >X-Mailer: QUALCOMM Windows Eudora Light Version 3.0.6 (32) >Date: Wed, 19 Nov 2003 21:36:20 -0500 >To: Mike <dogas(a)bellsouth.net> >From: Joe <rigdonj(a)cfl.rr.com> >Subject: Re: testing >In-Reply-To: <001e01c3aefb$6f7fb2d0$c762d6d1@DOMAIN> >Mime-Version: 1.0 >Content-Type: text/plain; charset="us-ascii" >

22 years, 9 months

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PDP11 stuff available, possible consulting gig

by jwest＠classiccmp.org

If anyone is interested in this, please contact the author directly at siaglo(a)ing.uni.wroc.pl --------------------------- Dear Sir We want to inform you that we have some pieces of PDP system (main board, teleprinter) and some documentation (engineerig drawings, listings of software etc.) available. By the way, we would like to consult one of our major technical problem. We have in our lab a CAMBRIDGE MICROSCAN MK-9 MICROPROBE still working under control of PDP-11/05 computer. We would like to replace the main computer PDP-11 by an IBM PC/Windows system and we are looking for a company which could do the replacement. Would it be possible for you to do this sort of replacement and what would be the conditions (including approximate costs)? We would appreciate any information you could provide. With kindest regards - Henryk Siaglo Institute of Geological Sciences University of Wroclaw ul. Cybulskiego 30 50-205 Wroclaw POLAND --- [This E-mail scanned for viruses by Declude Virus]

22 years, 9 months

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Classic Computers WIKI

by rhudson＠cnonline.net

I don't know how to start a Wiki, but perhaps it would be a good thing for all of us. I would provide a "memory location" where we could all add what each knows about each kind of computer. If someone wants to host one (ie provide bandwidth and a webserver) I think the software is free.. Perhaps the classiccomp website can have a wiki branch..

22 years, 9 months

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***wanted to purchase: items relating to general electric computer and Honeywell computers

by esharpe＠uswest.net

Wanted to purchase: items relating to General Electric computer and Honeywell Computer co. We are filling in this area in our displays and Reference Library. Please drop me a list of what you have available offlist. be sure there are *** in the title so I can pick your valued reply out from the other mass of messages we get everyday. Thanks Ed Sharpe archivist for SMECC Please check our web site at http://www.smecc.org to see other engineering fields, communications and computation stuff we buy, and by all means when in Arizona drop in and see us. address: coury house / smecc 5802 w palmaire ave glendale az 85301

22 years, 9 months

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IRIX setmon question

by pete＠dunnington.u-net.com

On Nov 20, 4:26, owen(a)bardstown.com wrote: > YAY! With sacrifices to the SCSI and XFS gods, I now have root on my Indy. I was > told to do a setmon to improve the monitor problems -- set for better resolution > + sync. > > Gulp... I don't see it in /usr/bin, /usr/sbin, /bin, or /sbin, and it isn't on > the path. Any > ideas? It's not something people should regularly twiddle, so it's slightly out of the way, in /usr/gfx/setmon -- Pete Peter Turnbull Network Manager University of York

22 years, 9 months

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DEC M750 flipchip?

by vrs＠msn.com

Does the lack of replies really mean no-one knows what an M750 "Line I/O Control" is for? Does that also mean no-one wants any :-)? I have pretty much decided that whatever they are, I am not likely to need them. Vince

22 years, 9 months

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IRIX setmon question

by owen＠bardstown.com

YAY! With sacrifices to the SCSI and XFS gods, I now have root on my Indy. I was told to do a setmon to improve the monitor problems -- set for better resolution + sync. Gulp... I don't see it in /usr/bin, /usr/sbin, /bin, or /sbin, and it isn't on the path. Any ideas?

22 years, 9 months

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AVAILABLE: HP 9000 G30

by waltje＠pdp11.nl

Hi all, One of my customers has available a complete and working HP series 9000, model G30. It includes UX media, the full manual kit (^#*($%#@()$ which is currently sitting in my living room, since they gave me the wrong set..) and, if desired, an HP series-9000 rack. The system currently is *in* that rack. The system can't be shipped, so it's pickup only. Current location is ALMERE, in The Netherlands. Interested parties please contact me off-list. No affiliation etc.. I was there to grab the VAX they were going to give me (and which turned out to be a DECsystem 5400 *yay* ;-) and I noticed that HP sitting idle there... Cheers, Fred -- Fred N. van Kempen, DEC (Digital Equipment Corporation) Collector/Archivist Visit the VAXlab Project at http://www.pdp11.nl/VAXlab/ Visit the Archives at http://www.pdp11.nl/ Email: waltje(a)pdp11.nl BUSSUM, THE NETHERLANDS / Sunnyvale, CA, USA

22 years, 9 months

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79xx disc diagnostic manual

by aek＠spies.com

diag pn 12962-16001 r1805? if so, i'll pdf the manual (12962-90001)

22 years, 9 months

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HP 7906 disc issues

by jwest＠classiccmp.org

I'm having some odd problems with a 7906 drive. I have the service manuals, and it passes all the tests contained therein. However, none of those tests involve writing, and reads done offline with the DSU are not verified. The read/write testing relies on the diagnostics running on the cpu. I have the diagnostic software for the 7905/06 drives and it does find problems (sporadically). However, the dump it gives when it finds a problem is somewhat less than succinct - looks like you have to have the manual for the diagnostics to decode the dump, which according to the service manual can point you to a specific circuit in the drive electronics. Sooo does anyone possibly have the documentation/manual for the HP 7905/06 diagnostic program? Hoping for electronic format so I can look at it quickly. I'm itching to get to the bottom of this.

22 years, 9 months

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Free to a good home....

by geneb＠deltasoft.com

I've got a single 486DX-33 CPU chip and a single 128K (64k?)static RAM chip (IS61C64A-25b - ISSI mark). You don't even have to pay postage, just claim it so I don't have to toss it. Comes in a nice little box with anti-stat foam on the bottom. g.

22 years, 9 months

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Speaking of 1802's....

by tomj＠wps.com

There's a big pile of RCA COSMAC development boards, mounted in rack chassis, with "many" options (ROMs, memory, LED displays, power supplies, etc) at the Black Hole in Los Alamos. Aka Los Alamos Sales Co. I neglected to say some months ago, and it just popped into my head now. I have the big fat RCA manual. I just have too much stuff ("just one thin leetle mint sir!").

22 years, 9 months

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Can anyone identify this IBM magnetic tape cartridge?

by uban＠ubanproductions.com

While I don't usually search eBay for this sort of item, a friend mentioned something to me which prompted me to search for something magtape related and I ended up bidding on this item and winning it (eBay will be my death): http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=2762437052&ssPageName=AD… Anyway, I'm wondering if anyone can tell me what vintage it is and what equipment it was used in? Pictures or URLs would be a bonus... --tnx --tom

22 years, 9 months

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Lot of 6 Z-89s, 2 VT100s, VT180, other terminals, DECfloppy drives availa...

by Innfogra＠aol.com

Intel used Bubble memory to drive their speech processing stuff. Look for Intel bubble memory among the cards. Nice find. Paxton Astoria, OR

22 years, 9 months

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Pinging Mike Haas. was Warning: could not send message for past 4 hours

by rigdonj＠cfl.rr.com

Mike, The last three or four messages that I send to you have all bounced. Joe >Date: Wed, 19 Nov 2003 15:18:16 -0500 (EST) >From: Mail Delivery Subsystem <MAILER-DAEMON(a)ms-smtp-02.tampabay.rr.com> >Subject: Warning: could not send message for past 4 hours >To: rigdonj(a)cfl.rr.com >Auto-submitted: auto-generated (warning-timeout) >Original-recipient: rfc822;rigdonj(a)cfl.rr.com > > ********************************************** > ** THIS IS A WARNING MESSAGE ONLY ** > ** YOU DO NOT NEED TO RESEND YOUR MESSAGE ** > ********************************************** > >The original message was received at Wed, 19 Nov 2003 10:16:15 -0500 (EST) >from 73.151.202.68.cfl.rr.com [68.202.151.73] > > ----- Transcript of session follows ----- ><dogas(a)bellsouth.net>... Deferred: Bad file number >Warning: message still undelivered after 4 hours >Will keep trying until message is 2 days old >Reporting-MTA: dns; ms-smtp-02.tampabay.rr.com >Arrival-Date: Wed, 19 Nov 2003 10:16:15 -0500 (EST) > >Final-Recipient: RFC822; dogas(a)bellsouth.net >Action: delayed >Status: 4.2.0 >Remote-MTA: DNS; mx00.mail.bellsouth.net >Last-Attempt-Date: Wed, 19 Nov 2003 15:18:16 -0500 (EST) >Will-Retry-Until: Fri, 21 Nov 2003 10:16:15 -0500 (EST) >Received: from afdldashlas (73.151.202.68.cfl.rr.com [68.202.151.73]) > by ms-smtp-02.tampabay.rr.com (8.12.10/8.12.7) with SMTP id hAJFG9KO021157 > for <dogas(a)bellsouth.net>; Wed, 19 Nov 2003 10:16:15 -0500 (EST) >Message-Id: <3.0.6.32.20031119095938.007e7c70(a)pop-server.cfl.rr.com> >X-Sender: rigdonj(a)pop-server.cfl.rr.com >X-Mailer: QUALCOMM Windows Eudora Light Version 3.0.6 (32) >Date: Wed, 19 Nov 2003 09:59:38 -0500 >To: Mike <dogas(a)bellsouth.net> >From: Joe <rigdonj(a)cfl.rr.com> >Subject: Re: looking for EXORcisor board >In-Reply-To: <062501c3ae2f$fec16910$7162d6d1@DOMAIN> >References: <B57137A8-18AC-11D8-9072-000393C5A0B6(a)cnonline.net> > <3.0.6.32.20031116232848.007f4a70(a)pop-server.cfl.rr.com> >Mime-Version: 1.0 >Content-Type: text/plain; charset="us-ascii" >

22 years, 9 months

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Overland Data OD3201

by aek＠spies.com

"Pertec Interface . . . The unit hooks up to any computer with a standard parallel port for EZ data migration between system platforms; from PC Networks, mid-ranges. . ." -- The seller doesn't know what he's talking about..

22 years, 9 months

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VCF East in 2004?

by RCini＠congressfinancial.com

I agree. Which is why I suggested Trinity College or somewhere in Stamford. Anything else closer to NYC proper would be too expensive. -----Original Message----- From: cctalk-bounces(a)classiccmp.org [mailto:cctalk-bounces@classiccmp.org]On Behalf Of Curt vendel Sent: Wednesday, November 19, 2003 2:04 PM To: General Discussion: On-Topic and Off-Topic Posts Subject: Re: VCF East in 2004? Boston is all well and good and if MIT were to allow something, that would be great, but I think it should be moved down 100-150 miles to allow a lot of the collectors in NJ/PA/OH to come, this is why, I think CT is a very good locale. Curt ----- Original Message ----- From: "Hans Franke" <Hans.Franke(a)mch20.sbs.de> To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk(a)classiccmp.org> Sent: Wednesday, November 19, 2003 1:13 PM Subject: Re: VCF East in 2004? > Am 17 Nov 2003 16:35 meinte Curt vendel: > > > > Hey, as a newbie to the group, I need to ask: is the VCF customarily held > > > at a particular time of year? I'll likely be around New York/New England > > > in late June or early July, and it'd be a happy coincidence if it just > > > happened to take place right about then. :) > > > > (There. I've announced a timetable. Now the RCS has time to hide before I > > > get there. <g!> ) > > > Well VCF (west coast and the original, 6 shows to date?) has always been > > held in the fall (Sept - Oct timeframe usually as I've seen it, I've only > > had a chance to exhibit at one of them so far) > > > The 1st VCF East was in late spring (was it May??? I can't remember, it was > > a while ago...) I like the May/June timeframe myself... > > And then there's of course VCFe (5th issue coming up), always held > on the weekend closest to 1st of May (next time May 1st/2nd). It's > not to desirable to have both to close - next year it's already too > close (less than 4 weeks). > > Also, Sallam, Boston in April migh still hold _snow_, something > not seen in your area of CA for a long time - no, I'm not talking > about a little bit of white stuff, but rather enugh and over more > than just a few hours - but beeing the well educated young man as > I know you are, you may have herared of. > > Am 17 Nov 2003 14:42 meinte Jay West: > > > c'mon... what about VCF central Sellam?? > > I suggest Yates Center, Kansas, maybe not world's smaltest MoN-town, > but with probably the one with highest classic computer to citizen > ratio in the world :) > > Am 17 Nov 2003 16:23 meinte John Lawson: > > Hey! Howsabout VCF-Not-So-West, here in Carson City?? Or Reno.... > > Cool, we even don't need any artificial light, this place is known > to be lit up by iridium flares :) > > > OR - buy a couple of semi-trucks - VCF Portable!! > > John, you're realy advancing on your way to become a real Hick/Geek > crossover :) But yeah, come to think of it, the VCF Tour might > be a real interesting idea. > > Am 17 Nov 2003 16:27 meinte Bryan Pope: > > > Well, how about VCF, eh? (in Canada!) ;-) > > Vintage Canadian Festival? > > > > OR - shutup! > > Err... I guess I better do so :) > > Gruss > H. > -- > VCF Europa 5.0 am 01./02. Mai 2004 in Muenchen > http://www.vcfe.org/ >

22 years, 9 months

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cctalk Digest, Vol 3, Issue 45

by keith＠saracom.com

On Wed, 19 Nov 2003 12:41:39 -0600 (CST), cctalk-request(a)classiccmp.org wrote: > ------------------------------ > > Message: 9 > Date: Wed, 19 Nov 2003 08:31:49 -0800 > From: bob(a)jfcl.com (Bob Armstrong) > Subject: Telnet to RS232 Gizmo? > To: cctalk(a)classiccmp.org > Message-ID: <03111908314964(a)jfcl.com> > > > I want a little gizmo with an RS-232/DB25 on one side > and a RJ45/10baseT > on the other. It should speak TCP/IP, specifically > telnet, and convert it > to RS-232. Kind of like a print server, except for > telnet/RS232 instead of > lpd/Centronics. > > The idea is to use it to put some of my old computers > on the network > by plugging it into their console serial ports. > > There are enough microprocessors around today with > embedded TCP/IP > stacks that such a thing would not be that hard to > build, but it > sounds like the kind of thing that somebody else must > have already > done. > > Can anybody give me any pointers to such a gizmo? > Bob, There are several single port terminal servers available. I have used the PicoWeb and the HelloDevice. The PicoWeb server is cheaper and available from www.picoweb.net, but he did not reply to my last emails. Instead we bought the single port hellodevice model ls100 from www.sena.com. the PicoWeb site has complete schematics etc. The HelloDevice LS100 is more of production device. Its also easier to setup and use. >From memory, the PicWeb Server was about $90 and the LS100 was about $130. If you need lots of serial ports, perhaps a standard terminal server would be better. Speaking of which, does anyone know of a MOPD server for Windows 98? Max

22 years, 9 months

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Telnet to RS232 Gizmo?

by bob＠jfcl.com

>It's called a "terminal server." >Use a cheap terminal server. I suppose, if you want 16-32-48 ports and a big honkin' box. I was hoping for 1 port and a tiny box. Bob

22 years, 9 months

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disk drive

by amarder＠mail.ru

Dear m-r Duell, I'm looking for disk drive model MP-F52W-00D (Sony). It is out-of-date model What model it is possible to replace by? Your advice is necessary Best Regards, A.Marder, engineer

22 years, 9 months

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Telnet to RS232 Gizmo?

by bob＠jfcl.com

I want a little gizmo with an RS-232/DB25 on one side and a RJ45/10baseT on the other. It should speak TCP/IP, specifically telnet, and convert it to RS-232. Kind of like a print server, except for telnet/RS232 instead of lpd/Centronics. The idea is to use it to put some of my old computers on the network by plugging it into their console serial ports. There are enough microprocessors around today with embedded TCP/IP stacks that such a thing would not be that hard to build, but it sounds like the kind of thing that somebody else must have already done. Can anybody give me any pointers to such a gizmo? Thanks, Bob Armstrong

22 years, 9 months

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ANTS!!!!

by ptremewe＠bigpond.net.au

Hi All, Had an Atari 520 ST in storage. Found out it has small ants next taking up residance inside it. I think I found it before the ants managed to cause any damage inside the unit, however am courious to know if there is any known long term affect from Fly Spray contamination. I can clean up most of the PCB and Everything with the usual High presure wash, then dry it in a drying oven, but what residues am I likely to have from fly spray?? Any one with any ideas???? Peter T.

22 years, 9 months

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JPG needed - Altair-era printer

by RCini＠congressfinancial.com

Hello, all: I'm doing some renovation work on the Altair32 Emulator and I'm looking for JPGs of Altair-era dot matrix printers that I can convert to BMP and use as a dialog box background. It would have to be a close-up, well-lit shot that I can re-size if needed. The final size won't be any bigger than about 640x300 (more likely smaller). A shot from the operators' viewpoint would be best so you can see the control panel. Please contact me off-list. As always, thanks. Rich

22 years, 9 months

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Telnet to RS232 Gizmo?

by pete＠dunnington.u-net.com

On Nov 19, 8:31, Bob Armstrong wrote: > > I want a little gizmo with an RS-232/DB25 on one side and a RJ45/10baseT > on the other. It should speak TCP/IP, specifically telnet, and convert it > to RS-232. Kind of like a print server, except for telnet/RS232 instead of > lpd/Centronics. > > The idea is to use it to put some of my old computers on the network > by plugging it into their console serial ports. In other words, a terminal server (or a console server, as they're sometimes called). Look for a secondhand Shivaport or Lantronix; don't bother with Emulex. If you want a really small one, try http://www.interfaces.de/e-wwwww-ww-hpus-000.html (but they ain't cheap). They do some nice things; I bought some web-IO thermometer units from them (I use PT100 probes and I can run the probes remotely over 100m of Cat5). -- Pete Peter Turnbull Network Manager University of York

22 years, 9 months

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Available DEC gear: updp-11/23's

by jwest＠classiccmp.org

I have a lead on some DEC gear, I'm handing it over to the list. Please contact the owner directly. Sounds like he has RT-11 on diskette AND tape. I'd be interested in just the tape if it's 1/2 inch.... Jay West ----- Original Message ----- From: "tim majoch" <tmajoch(a)comcast.net> > I have two micro PDP-11/23 (or /53 not entirely sure) systems in need of a > home. Theywere in a surplus pallet purchase from the Boeing Aerospace Co > about 8-10years ago and my buddy who bought them gave them to me since I > used to use similsr systems when I worked at Boeing for multi-channeldata > aquisitionan experiment control. I can't give an exhaustive list of the > system config's as I had a stroke in Feb and don't have the full use of all > my limbs and the systems are confined in a closet in a seldom used area of > my house. The units each include processor, memory (one 4MB board , one is > less, maybe 1MB) and drive controller boards (an RQDX2 or 3 in one , RQDX1 > in the other)and at one time I had partial success getting an RT-11 system > installed on one of them - using an IBM PC terminal emulator program as a > serial port for VT terminal input. So the hardware is good, it just needs > some tlc and someone with enough expertise and free time to get them > configured. I think there is at least one RD/5x equivalent drive avaiable > also. They each weigh about 80+ #'sI also have a set of rt-11 v5.x > floppies(and system manuals - in orange DEC binders) and a tape distro of > v5.4 (if I recall correctly). I have a warm spot in my heart for these > systems, and would like to find them a good home. They are in the floor > standing narrow molded cream cases/bases and would need to be freighted or > picked up if someone wanted them and was not too far away I know they cost > Boeing over$10K or so each when new and I know they aren't worth much now, > so I'm not trying to sell them, but I'd like to see them in use again . If > you can find anyone who is interested in these units, please have them > contact me, so we can discuss transferring them. If your organization would > like them as museum pieces, etc. I'd be happy to donate them. > > Thanks > Tim Majoch > > > > > > --- [This E-mail scanned for viruses by Declude Virus]

22 years, 9 months

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Processor OS List

by knightstalkerbob＠netscape.net

Add HDOS (Heath DOS, for H/Z-89's) under the Z80 list. Bob Mason "J.C. Wren" <jcwren(a)jcwren.com> wrote: > I'm starting to compile a list of various processor, and OS's they ran. An >OS qualifies if it was general purpose, not a dedicated OS. CP/M, Apple DOS, >etc qualify, ROM'ed things like vxWorks does not. Forth is a special >category, and while it will be present in the list, doesn't need to be listed >for every processor. I'm more interested in the smaller processors, and not >getting into 68000, NS32000, etc. However, 8 bits is not a requirement. We >can skip over x86 family however, as that list would be huge > > I plan to make this the basis of a webpage. Of course, if anyone knows of >such a page already, feelk free to point me at it. I googled around, and had >so many hits, I couldn't find reasonable search terms to cull it with. > > A starting point is: > >Z80: > CP/M (and variants: MP/M, etc) > TRS-DOS > >6502: > Apple DOS > Commodore DOS (not sure of the name) > >6800: > Flex > >1802: > RCA COSMAC development system > > > > > -- Bob Mason 2x Amiga 500's, GVP A530 (40mhz 68030/68882, 8meg Fast, SCSI), 1.3/3.1, 2meg Chip, full ECS chipset, EZ135, 1084S, big harddrives, 2.2xCD Homebrew AMD Athlon 2400+, 512MB, etc. Heathkit H-89A, 64K RAM, hard and soft-sectored floppies, SigmaSoft and Systems 256K RAM Drive/Print Spooler/Graphics board HDOS 2 & CP/M 2.2.03/2.2.04 __________________________________________________________________ McAfee VirusScan Online from the Netscape Network. Comprehensive protection for your entire computer. Get your free trial today! http://channels.netscape.com/ns/computing/mcafee/index.jsp?promo=393397 Get AOL Instant Messenger 5.1 free of charge. Download Now! http://aim.aol.com/aimnew/Aim/register.adp?promo=380455

22 years, 9 months

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HP-1600A Manual... (slightly OT)

by root＠parse.com

Hi folks, I'm looking for either an HP-1600A manual, or for some kind soul to give me a few pointers on how to use the 1600. I got it without the manual; but I do have all the probes. My main questions are: a) what do the "Qualifier" switches do? b) how do they relate, if at all, to the "Trigger Word / Map Locator" switches? c) how do I trigger on various patterns (if I can)? d) some explanation of the "Trigger Mode", "Sample Mode", "Table", and "Map" switches. e) any other general operating tips would be appreciated. I'm posting to this list because I figure a few people out there use these things for their antique computer collections; I certainly plan to use mine to restore my PDP-12 :-) http://www.parse.com/~museum/pdp12/pdp12/restore.html I intend on using it with a "clothes-pin"-type 14 and 16 pin adaptor to check on the operating state of various ICs... Cheers, and thanks in advance, -RK [When replying by email, you'll need to click on the URL mailed back to you -- spam filters and all that] -- Robert Krten, PARSE Software Devices +1 613 599 8316. Realtime Systems Architecture, Consulting and Training at www.parse.com Looking for Digital Equipment Corp. PDP-1 through PDP-15 minicomputers!

22 years, 9 months

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Processor OS List

by rigdonj＠cfl.rr.com

I don't know if anyone mentioned it yet but's there's MOS for the IBM PC (and maybe others). It's a multiuser version of MS-DOS. Lance Lyon should be able to give more details. Joe

22 years, 9 months

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RM03 read/write heads and aligning disk

by sebastian.bocc＠autotrol.com.uy

Hello, I have some RM03 spares, heads, aligning disk, etc... someone wants them? I have 6 new heads, in the box and sealed. Sebastian

22 years, 9 months

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HP 75000 Mainframe w/ Modules For Sale

by browe58＠comcast.net

Hi, I have an HP 75000 mainframe (photo attached) w/ the following modules available for sale: _ e1405a command module _ e1679a sonet/sdh timing reference (shown in photo but has been sold) _ e1671a sonet/sdh transport oh generator _ e1693a atm generator 155/662 _ e1694a atm receiver 155/662 _ e1672a sonet/sdh transport oh receiver _ e1662a sonet/sdh optical i/f 155/662 mb/s _ e1663a sonet/sdh electrical interface If interested, please feel free to make a "fair" offer. Unit is fully operational and comes w/ 7 day return policy if faulty. thanx. bill

22 years, 9 months

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Racks, rails and panels

by pete＠dunnington.u-net.com

On Nov 18, 21:03, vrs wrote: > From: "John Allain" <allain(a)panix.com> > > Haven't got time to comment on everything you've said. > > Some tips: > > Rails come in two pieces. > > You can mount one piece to the drive and one to the rack. > > When you have the rails in two pieces, the rack side rails > > can be screwed in place with much less stuff in the way > > than if the drive was there, so please do that. > > "Safety Rails" do not come apart like that. They are specifically designed > so the device *won't* go in or out through the front of the machine. It > will extend so the device can be serviced, but it won't let go so you can > take the device out and set it on a table. All the rails I've ever seen have some way of separating equipment from rail; usually catches that can be undone to allow the unit to come right out the front. I've seen some rails where the catches were hard to find, hard to get at, hard to figure out, but never one without any catch or release mechanism at all. It wouldn't make sense: if the equipment is so heavy and/or delicate that you couldn't risk it falling out, you don't want to make it too hard to mount in the first place. -- Pete Peter Turnbull Network Manager University of York

22 years, 9 months

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Overland Data OD3201

by scott_pasternak＠yahoo.com

In response to: Trying to find an Overland Data, Inc. OD3201 (or similar model) 9-track reel-to-reel unit. It is a reasonably thin, grey unit that stands vertically and has a plexiglas window built in the door. Please reply directly to ken at fraserhouse.com including condition and price. Thanks, Ken Campbell See: http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=2767146461&category=5109… --------------------------------- Do you Yahoo!? Protect your identity with Yahoo! Mail AddressGuard

22 years, 9 months

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HP 1000 ROMs (HP newbie, be nice!)

by jack.rubin＠ameritech.net

I have an HP1000E/2113B, s/n 2130A00623 sitting in my family room. I've run it to see the lights blink but don't know anything else about it. How would I check to see the ROM configuration? Configuration includes 12821A disc controller, BACI, HS terminal, BUS I/O and a bunch of I/O cards, also 3 64K word memory cards. I don't have docs for this box but I have what looks like a complete set of manuals for a truly embedded system - an HP 5987A GC/MS (gas chromatography/mass spectrometer) system. Manuals include the RTE-6/VM manual. I bought manuals and cables; the CPU itself may still be available (I think asking price was $300) if anyone is interested. BTW, this thing is really too big for my collection - anyone want to trade a MOS KIM or Exorciser system for it? Jack Rubin Wilmette, Illinois USA

22 years, 9 months

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Grandfather system RTE6/VM?

by aek＠spies.com

> I'll try to dump the microcode proms this weekend Dumps of the firmware is now up at www.bitsavers.org/HP/1000_firmware including the IOP firmware the 21MX. Jay, since you appear to have the only surviving copy of the 2100 IOP firmware, it would be good to get the proms read.

22 years, 9 months

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Racks, rails and panels

by pete＠dunnington.u-net.com

On Nov 17, 22:01, Ian Primus wrote: > How do I get the side panel off the Digital rack? They seem to come > off, and one is loose. I am wanting to remove it, and reattach it so > that it won't rattle. Also, the top panels are a little crooked. I have > tried to look for how the thing is put together, but it's hard for me > to tell, being unfamiliar with racks. What is the trick to removing > those panels? There are two or three types. One has panels that pop on using springy metal fasteners, one has sides that lift up slightly then pull off, similar to (but not the same as) the taller racks. > What are the preferred types of screws to use for mounting things in > racks? One of my racks has threaded holes, but the Digital one doesn't. > Should I just go to the hardware store and get some 1/4-20 nuts and > bolts, or is there a recommended or standard size? Also, what is the > threading on racks with threaded holes? Is this a standard size bolt? Normally, on those racks, you use clip-on Tinnerman nuts, with 10-32 screws. Some devices use a metal strip with tapped holes to take 10-32 screws. A Tinnerman nut is basically a folded piece of springy sheet metal with a nut welded onto the back, so that it clips onto the vertical rail and holds the nut captive and aligned with the hole in the rail. > Also, I have a Fujitsu Eagle, which, aside from being very heavy, also > needs a new set of rails. It has some rails already, but I don't have > the mating ones to put in the rack. Do most devices take standard > rails, or are there peculiarities to some drives? Will a normal set of > rails handle a 150 pound hard drive, or do I need something a bit more > robust? Pity you haven't got the original rails, they're really high quality. Eagle rails are heavier-duty than most, but any really HD rail will be fine, providing the holes fit. > Does it matter what order I put the hardware into the rack? I wouldn't > think that it would, but I'm worried about heat. Within reason, it doesn't matter. I'd leave a gap above the Eagle. In case you didn't already know, the rack is measured in "U" (units of 1_3/4"). 3U is 5_1/4". If you look closely you'll see the holes are not evenly spaced, but in groups of three. The centres of the outer holes of a 1U space are 5/8" distant from the centre of the middle hole (and distance from centre of outer hole of one U to centre of outer hole of the adjacent U is 1/2" ). > On a related note, how should I plug all this stuff in? I'll have at > least three power cords, one for the computer, one for the Eagle and > one for the tape drive, then there will likely be another drive or two. > What should I plug these into? Will a heavy duty power strip handle the > load, or should I split it up? What about a single circuit? From what I > have read, an 11/73 shouldn't draw that much juice, the only thing I > worry about is how much current the drives need. I'd still imagine that > a regular household 15 amp line should do it though. 15A should be plenty. I can't remember what an Eagle draws, but my 11/73 system draws less than 4A at 230V, but it has two smaler drives, not an Eagle. The normal way to wire them up is with a power controller in the bottom of the rack, at the back. A power controller is basically a power strip with two sets of sockets (one always on, one set controlled), a 2-pole (3-pole if for 3-phase) circuit breaker (not just a switch), and a relay/contacter and associated electronics. A 3-position switch lets you turn the contactor to ON, OFF, or REMOTE, and there are two or three 3-pin AMP Mate-N-Lock sockets for remote connections (you can wire the BA11-x switches to turn the contactor on and off). -- Pete Peter Turnbull Network Manager University of York

22 years, 9 months

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UNiform-PC

by nico＠farumdata.dk

Lo and behold, when cleaning up a bit, I found an original Microsolutions "uniform-pc" 5.25" floppy. Serial 01720511. Someone asked about it lately, but I cant remember who it was. Nico

22 years, 9 months

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Racks, rails and panels

by pete＠dunnington.u-net.com

On Nov 18, 22:18, Ian Primus wrote: > The Fujitsu > Eagle is another story entirely. I have looked at the rails some more, > and they do appear to be safety rails, and they are missing the rear > right angle flange that would allow me to screw them into the rack. > Also, even if I did have this flange I do not know how I am to get this > drive into the rack at all. I need to somehow lift the drive up far > enough so I can screw the rails in place. No, if they''re the normal Eagle rails, they *do* come apart. The normal method is to separate the outer (main) assembly, fit it, with the back bracket, to the rack, and get two people (or possibly the industry-standard pile of books or wood) to lift the unit to the correct height, while you guide first one side and then the other into the fixed part of the rails. It's often easier to get the drive lined up, close the front of the cab, then slide the rails onto the drive, rather than wiggle a 200lb drive onto a moving (sliding!) target. Are these rails made of what looks like brushed aluminium alloy, about 3" high? Slide the outer part back; it will stick out about half the drive length. You should have an inner (actually, it's the middle) layer of slide, with round-bottomed grooves on top and bottom edges (where the ball-bearings run), probably still more-or-less aligned with the front and back of the drive. This slides backwards (it's much stiffer to slide than the outer section, and goes "click" as the safety button engages in a round hole (abut 3/4" diameter) near the front of this middle layer. At this piont, the amount of rail extending out behind the drive is just a little more than the depth of the drive itself. Press the button in, push back some more, and the whole middle+outer of the slide will come off the drive. > But, there I face another snag. The Digital rack I am installing this > in is not threaded. Also, the spacing between the front and the back is > different than the other rack I have, and I noticed that some of the > rails I had didn't fit as easily as they could have. Are there really > different depths for racks? Yes, there are. Some racks have the verticals closer to the front, some (comms racks) have them set further back ( to allow for a door closing over cables plugged in to patch panels. And there are shallow racks, instrument racks, deep racks, ... Add to that, different methods of ixing. As you look at the rack from the front, you see a flange with the mounting holes in it (one on each side of the rack, obviously). Some things are meant to fasten to the front surfuce of this, some to the rear. Many types of rails fit to the rear surface, otherwise they'd be too thick to get standard-width equipment between the rails. The standard rails for things like an RX02, a PDP/8E, modern Intel 2U servers, etc fit to the rear surfaces for this reason. > Another little snag I > encountered with the Digital rack is that I _can't_ use the Tinnerman > nuts that clip onto the rails. The problem is that in the Digital rack, > the rails screw in from the _back_ of the front part, instead of the > front. I think that's what I've just described, and you've obviously discovered for yourself. > I found a couple appropriate sized bolts > with locking nuts that I was able to use, I'm going to get some more at > the hardware store tomorrow though. Usually, the way is have a strip of steel, about 3/8" wide, and about 1/8" thick, with three of four tapped (threaded) holes in it, spaced to suit the rack's mounting holes. If the front bracket (or flange) of the rail has slots instead of holes (they usually do), you pick the holes you need, put a couple of screws through the rack, and screw them just a few turns into the metal strip. Do this front and back. Then adjust the back bracket to about the right length, slip the rail's flange between rack and metal strip, hold in place with one hand and tighten up the screws (you want Philips head screws, not slotted :-)) with the other. Same at other end, then add more screws as required. -- Pete Peter Turnbull Network Manager University of York

22 years, 9 months

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Mitsubishi Computer available in Macao

by dancohoe＠oxford.net

I was forwarded this message yesterday. If anyone is interested, I have the original senders email. Unfortunately for most of us, he's in Macao. There's an attached jpg of the machine; it looks like a console type machine with built-in printer and two 8" floppies. >Subject: Historical Mitsubishi Computer with Antique Software >Date: Fri, 14 Nov 2003 20:40:46 +0800 >Status: U > >?? >Dear Michael: > >I don't know whether or not you could help me to find any collector >that would be interested of my offer, a historical Mitsubishi >Mini-Business Computer, a landmark that symbolized computers >migrating from Main Frame to Desktop. I herewith enclosed its >original catalogs for your easy reference. > >Awaiting your soonest reply. > >Thanks and best regards, >Monte >

22 years, 9 months

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Apple Unidisk

by vcf＠siconic.com

Ok, so I was at the Computer History Museum again today and got a chance to check out the Unidisk in more detail. First of all, it might be a very late model prototype as it requires a kludgy external box for power. Donated along with the drive was a box of Apple interfaces. There is definitely an Apple /// Uni/Duo-disk controller. Therewas also a funky Apple ][ riser card. There were also a couple extra analog boards. One was a spare Unidisk analog board, and there were two Lolly Disk analog boards. What's a Lolly disk? Also donated were about 10 engineering drawings of the Unidisk, Duodisk, as well as the Disk ][ controller, Disk ][ analog board, and some other stuff. Definitely an interesting piece of hardware. Eric, ask the next time you are there and you should be able to get someone's permission to check out the drive. It's in the accessioning room, next in queue to be accessioned. -- Sellam Ismail Vintage Computer Festival ------------------------------------------------------------------------------ International Man of Intrigue and Danger http://www.vintage.org [ Old computing resources for business || Buy/Sell/Trade Vintage Computers ] [ and academia at www.VintageTech.com || at http://marketplace.vintage.org ]

22 years, 9 months

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HP 2000 TSB simulated?? YES! 2000 E, and F and Access have all be en running.

by MGemeny＠pgcps.org

Hi folks, Well, the haunted house season is over and the cleanup continues. Now I'll have more time to put into the HP2000 simulation project. As you may remember we did get HP2000 Access running under simulation, as well as "E" and "F". But so far no one is running a system full time. I was running the system under Windows, but Unix and Mac are supported as well. We have most all of the documentation including the source for Access date code 1812, and should have most all of the contributed libraries. Would any of you have access to other HIBE tapes? Ether in your archives or in archives of data centers you used to support? We still have more HIBE tapes that need to be converted to CD ROM and lots of work sorting it all. It sure was nice the first time I launched a telnet to my windows box and got the "PLEASE LOG IN" prompt, and it was even better once I has able to log in and play Adventure. Since the simulation is faithful to the hardware, the original operating system binaries don't even know that they are not running on real hardware. I even have to use an image of the actual 2100 paper-tape bootstrap program to get Access running under simulation. With this approach to the simulation, every feature, flaw (if there were any), or quirk is faithfully reproduced. I'm trying to get HP to allow a hobby use open license, but until then the package is available only on an as needed basis. Do you know anybody who may want to play sysop and keep a system running for the public to play with? If so, just drop me a note. Mgemeny(a)pgcps.org Ps. We also did a paper on the project, which can be found here: http://descanso.jpl.nasa.gov/RCSGSO/Proceedings/Paper/A0053Paper.pdf <http://descanso.jpl.nasa.gov/RCSGSO/Proceedings/Paper/A0053Paper.pdf> Thanks in advance, Mike.

22 years, 9 months

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Racks, rails and panels

by pete＠dunnington.u-net.com

On Nov 18, 7:35, Ian Primus wrote: > > On Tuesday, November 18, 2003, at 03:42 AM, Pete Turnbull wrote: > > Normally, on those racks, you use clip-on Tinnerman nuts, with 10-32 > > screws. Some devices use a metal strip with tapped holes to take 10-32 > > screws. A Tinnerman nut is basically a folded piece of springy sheet > > metal with a nut welded onto the back, so that it clips onto the > > vertical rail and holds the nut captive and aligned with the hole in > > the rail. > > Are these Tinnerman nuts available in places like Home Depot, or do > they need to be ordered. Something tells me that Home Depot wouldn't > carry them, since they sound specific to rack mounted hardware, but I > thought I'd ask. I'll probably just use regular nuts and bolts, those I > _can_ get at Home Depot. Probably not at Home Depot, but specialist hardware suppliers (any rack supplier) will have them, or Tinnerman Palnut themselves. Try a Google search for "tinnerman" :-) Or see if any local suplus places have any (look for them still attached to racks). You'll find that using ordinary nuts and bolts is often very difficult, because you often can't get your fingers in to hold the nut. > I've got part of the original rails :). Bolted to the side of the drive > are sliding rails, and normally I would assume that the entire rail was > there, as the end is such that it could be screwed into the rack, but > there are only these screw holes on the front of the rails, not the > back, and I know that a 150 pound drive cannot be supported by a single > set of screws in the front. Correct, there are usually three (or four) screws at the front, and the same at the back. If you've got two parts of the rail, one sliding over the other, you're just missing the back brackets. If you've got only one part, fixed to the side of the drive, you have slightly less than half the rail (you're missing the larger part, with all the ball bearings, and missing the back bracket). The back brackets are plated steel channel, about 8" long, that fit over the stationary part of the rail. The end is bent over into a flange that bolts to the inside of the rack's vertical member. I dare say you could make something that would do the job. -- Pete Peter Turnbull Network Manager University of York

22 years, 9 months

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Grandfather system RTE6/VM?

by aek＠spies.com

I think Al said he might have found some reference that proves that the IOP firmware was actually ported by HP to the E. Can you confirm? -- The part numbers for the E version appear in the 2000 section of the M/E/F CE manual. It has 6 proms listed instead of 12. I still think it's possible to convert the MX version to the E. Bob and Mike figured out what the instructions do (from memory something like cnvrt isn't even used..)

22 years, 9 months

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HP 2000 TSB simulated?? YES! 2000 E, and F and Access have all been running.

by SPEDRAJA＠ono.com

My computer is up and running 24 hours. I have some particular interest to play with the HP2000, and sould like to get the package to put it online (and play with too). Cheers Sergio ----- Mensaje Original ----- Remitente: "Jay West" <jwest(a)classiccmp.org> Fecha: Mi?rcoles, Noviembre 19, 2003 7:05 am Asunto: Re: HP 2000 TSB simulated?? YES! 2000 E, and F and Access have all been running. > Yes Mike... just to show I'm not biased against any emulator other > thanmine... I'd be happy to put up the simh simulator running > access on the > classiccmp server. Full time connected to the net. Of course, if I > ever get > around to finishing mine up, BOTH will be available there! :) > > Jay West > ----- Original Message ----- > From: "Mike Gemeny" <MGemeny(a)pgcps.org> > To: <cctalk(a)classiccmp.org> > Sent: Monday, November 17, 2003 5:33 PM > Subject: HP 2000 TSB simulated?? YES! 2000 E, and F and Access > have all been > running. > > > > > > Hi folks, > > > > Well, the haunted house season is over and the cleanup continues. > > > > Now I'll have more time to put into the HP2000 simulation project. > > > > As you may remember we did get HP2000 Access running under > simulation, as > > well as "E" and "F". But so far no one is running a system full > time.> > > I was running the system under Windows, but Unix and Mac are > supported as > > well. We have most all of the documentation including the source for > Access > > date code 1812, and should have most all of the contributed > libraries.> > > Would any of you have access to other HIBE tapes? Ether in your > archivesor > > in archives of data centers you used to support? > > > > We still have more HIBE tapes that need to be converted to CD > ROM and lots > > of work sorting it all. > > > > It sure was nice the first time I launched a telnet to my > windows box and > > got the "PLEASE LOG IN" prompt, and it was even better once I > has able to > > log in and play Adventure. > > > > Since the simulation is faithful to the hardware, the original > operating> system binaries don't even know that they are not > running on real > hardware. > > I even have to use an image of the actual 2100 paper-tape bootstrap > program > > to get Access running under simulation. > > > > With this approach to the simulation, every feature, flaw (if > there were > > any), or quirk is faithfully reproduced. > > > > I'm trying to get HP to allow a hobby use open license, but > until then the > > package is available only on an as needed basis. > > > > Do you know anybody who may want to play sysop and keep a system > runningfor > > the public to play with? > > > > If so, just drop me a note. > > > > Mgemeny(a)pgcps.org > > > > Ps. We also did a paper on the project, which can be found here: > > > > http://descanso.jpl.nasa.gov/RCSGSO/Proceedings/Pape > > <" target="l">http://descanso.jpl.nasa.gov/RCSGSO/Proceedings/Pape > > > > Thanks in advance, > > > > Mike. > > > > > >

22 years, 9 months

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HP Programmer's Calculators

by vance＠neurotica.com

Anyone know what's the newest model of HP Programmer's Calculator? One with number system conversion and stuff like that? Peace... Sridhar

22 years, 9 months

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Classic Computers WIKI

by dwight.elvey＠amd.com

>From: "JP Hindin" <jplist(a)kiwigeek.com> > > > >On Tue, 18 Nov 2003, Ron Hudson wrote: >> I don't know how to start a Wiki, but perhaps it would be a good thing >> for all of us. I would provide a "memory location" where we could all >> add what each knows about each kind of computer. > >I already have something just like this; > >www.computershelter.org > >JP > > Hi I've looked at your site but I'm a little confused. How does one use the Museum page? Also, how does one find information on a computer that one is looking for? What is a WIKI? On your page, you mention that one should be willing to pick up any machine that is offered. While this is a nice thought, I couldn't even justify the price of gas to pick up a no name 286 PC. I don't know anyone that would pay shipping on such a machine. I would cost me extra to bring it to the land fill transfer station that I go to because these are considered hazardous waste. Under these conditions, I don't think I could consider myself a curator for your page although I would otherwise love to post my collection. Dwight

22 years, 9 months

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Burgess XX15 Battery Specs?

by dwight.elvey＠amd.com

>From: "Classic Computers" <classiccmp(a)earthlink.net> >To: cctech(a)classiccmp.org >Date: Tue, 18 Nov 2003 19:30:55 -0800 >MIME-Version: 1.0 >X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1165 >Thread-Index: AcOuTYpbK45jzfGKSMiHGnKJb4qwcA== >X-ELNK-Trace: ca8ac7330f1a6aed6600dd9e358d661c239a348a220c26093694c06328d2be70652be52805f867b8 350badd9bab72f9c350badd9bab72f9c350badd9bab72f9c >cc: >Subject: Burgess XX15 Battery Specs? >X-BeenThere: cctalk(a)classiccmp.org >X-Mailman-Version: 2.1.2 >List-Id: General Discussion: On-Topic and Off-Topic Posts <cctalk.classiccmp.org> >List-Unsubscribe: <http://www.classiccmp.org/mailman/listinfo/cctalk>, <mailto:cctalk-request@classiccmp.org?subject=unsubscribe> >List-Archive: <http://www.classiccmp.org/pipermail/cctalk> >List-Post: <mailto:cctalk@classiccmp.org> >List-Help: <mailto:cctalk-request@classiccmp.org?subject=help> >List-Subscribe: <http://www.classiccmp.org/mailman/listinfo/cctalk>, <mailto:cctalk-request@classiccmp.org?subject=subscribe> >X-WSS-ID: 13A43AF222499140-01-01 >Content-Transfer-Encoding: 7bit > >I have an old Triplett 631 VTVM/VOM (that I use with classic computer >stuff, of course) that uses a Burgess XX15 battery. The XX15 is 22.5V >and is no longer made. > >There is a "fix" for this situation posted on the Web that substitutes >several currently made 22.5V batteries. But, I'd like to see if there >are any other ways of replacing the XX15s. > >So, does anyone have an old spec sheet for the Burgess XX15? I couldn't >find anything on the Web. > >Thanks, >Dave > > > Hi Dave First thing to concider is that this was a carbon-zinc battery. They expect a large voltage difference over the life of the cells. Stacking two 9 volt alkaline batteries should be enough to make the unit operate properly, giving 18 volts. If you find a problem here, you can always cut open a 9 volt alkaline battery and remove enough cells to make up the 4.5 volts. The alkaline units have separate cells that can be individually removed. This is unlike the stacks that are used in 9 volt carbon-zinc batteries. Be careful to leave enough welled strip to solder to so you don't over heat the cells. Later Dwight

22 years, 9 months

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Burgess XX15 Battery Specs?

by classiccmp＠earthlink.net

I have an old Triplett 631 VTVM/VOM (that I use with classic computer stuff, of course) that uses a Burgess XX15 battery. The XX15 is 22.5V and is no longer made. There is a "fix" for this situation posted on the Web that substitutes several currently made 22.5V batteries. But, I'd like to see if there are any other ways of replacing the XX15s. So, does anyone have an old spec sheet for the Burgess XX15? I couldn't find anything on the Web. Thanks, Dave

22 years, 9 months

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Another TRS-80 OS

by alhartman＠yahoo.com

There was Multi-DOS by Vernon Hester, it worked on Model I/III/IV He also made a simple version called V-DOS (I think) for Game manufacturers. Percom also had Double-DOS There were quite a few more, Percom had it's own incompatible DOS for awhile also. And then there were the various CP/M flavors for the TRS-80 like Lifeboat, Lobo, and others. Al __________________________________ Do you Yahoo!? Protect your identity with Yahoo! Mail AddressGuard http://antispam.yahoo.com/whatsnewfree

22 years, 9 months

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Processor OS List

by dwight.elvey＠amd.com

>From: ard(a)p850ug1.demon.co.uk >> >> I'm starting to compile a list of various processor, and OS's they ran. An >> OS qualifies if it was general purpose, not a dedicated OS. CP/M, Apple DOS, >> etc qualify, ROM'ed things like vxWorks does not. Forth is a special > >Are you sayiong an OS is not general-purpose if it's in ROM? In other >words Acorn MOS doesn't count? Strange criterion. > >> category, and while it will be present in the list, doesn't need to be listed >> for every processor. I'm more interested in the smaller processors, and not >> getting into 68000, NS32000, etc. However, 8 bits is not a requirement. We >> can skip over x86 family however, as that list would be huge >> >> I plan to make this the basis of a webpage. Of course, if anyone knows of >> such a page already, feelk free to point me at it. I googled around, and had >> so many hits, I couldn't find reasonable search terms to cull it with. >> >> A starting point is: >> >> Z80: >> CP/M (and variants: MP/M, etc) >> TRS-DOS > >LDOS, MultiDOS, DOS+, etc (various TRS-80 'improved' OSes) >XtalDOS (Tatung Einstein CP/M-a-like) >CP/N (?) > >> >> 6502: >> Apple DOS >> Commodore DOS (not sure of the name) > >Acorn MOS > >> >> 6800: >> Flex > >6809: > Flex-09 > OS9 > Color TRS-DOS > > >> >> 1802: >> RCA COSMAC development system > >32016: > PANOS/Pandora > Whatever the Unix varient on the Whitechapel MG1 is called ;-) > >Z8000: > ZEUS (Zilog Enhanced Unix System) > >-tony > > Z8000 also includes PCOS ( Olivetti ) and CPM-8000 Dwight

22 years, 9 months

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Racks, rails and panels

by aek＠spies.com

http://epl.meei.harvard.edu/Engineering/rackscrews.html Digikey actually has them at a decent price http://www.digikey.com/scripts/DkSearch/dksus.dll?Detail?Ref=75455&Row=85763

22 years, 9 months

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Apple IIe - trying to get drives to work

by billdeg＠degnanco.com

I am looking for a troubleshooting guide web site or similar resource. Or maybe someone here can help? In a nutshell, I turn on the Apple IIe and drive 1 spins and the drive light comes on, but does not read any bootable disks. On the display the screen reads: Apple ][ I have a number of boot disks so I don't think the disks are all bad. I have checked the cables and the drive card. I have swapped out the drive card with another that works. I have swapped cables and they seem OK. How do I diagnose the condition of this computer? Is there an internal diagnostic? (key combinations?) What's wrong typically when a disk drive spins but nothing happens? Playing around with key combinations I found that control+clear apple+filled apple+reset brings me to a prompt of some kind, but I do not know what I can do from this prompt. I have no manuals. I would be happy to send a set of digital pictures to anyone interested in helping. Please email comments to billdeg(a)degnanco.com - thanks!

22 years, 9 months

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Processor OS List

by pete＠dunnington.u-net.com

On Nov 18, 19:30, Stan Barr wrote: > > "J.C. Wren" <jcwren(a)jcwren.com> said: > > > I'm starting to compile a list of various processor, and OS's they ran. > A starting point is: > > 6502: > > Apple DOS > > Commodore DOS (not sure of the name) > > BBC DOS (can't rmemeber it's official name) Well, the main part is the Acorn MOS (Machine Operating System), and to that you can add various filing systems: DFS is the single-density floppy disc non-hierarchical Disc Filing System, ADFS is the double-density floppy/hard disc hierarchical Advanced Disc Filing System, NFS is the Network Filing System, you can guess what ANFS stands for, TFS is the Telesoftware Filing System (for software broadcast as teletext), ... You could also get the UCSD p-System From SofTech/TDi. For the Torch Z-80, there was CPN, a CP/M lookalike. -- Pete Peter Turnbull Network Manager University of York

22 years, 9 months

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COMPAQ 386

by Pablo.Berruz＠warnerbros.com

Hi, I just saw this old ad. Do you still have this pc? I would like to buy it.

22 years, 9 months

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Great computer history pictorial book at discount

by MTPro＠aol.com

> From: "Ed Sharpe" <esharpe(a)uswest.net> > > I think the like classiccomputinsA/ > gives some one some money credit for the transaction for > the referral to > Amazon. Yes, it does. It gives my Amazon associate account whatever small commission. I am in the process of rebuilding all of my links to computer history related books from Amazon and for abebooks.com. This small commission in no way costs the buyer any more, and my desire to share the great deal on a great book was sincere. Sorry if I offended anyone, though frankly I can't see why it matters - you don't have to buy the book. Best, David Greelish, classiccomputing.com

22 years, 9 months

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more talking to the press.

by witchy＠binarydinosaurs.co.uk

Brilliant! Just as the previous 'talking to the press' thread has vanished >from my classiccmp folder after I thought 'I won't need that' one of the broadsheets want to talk to me about collecting and collectables! Can anyone give me a precis of the previous thread before I go search the archives? Thanks! -- adrian/witchy www.binarydinosaurs.co.uk - the online computer museum www.snakebiteandblack.co.uk - ex-monthly gothic shenanigans :o(

22 years, 9 months

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Emulex SC04 controller... what kind of disk does it talk to?

by aek＠spies.com

anyone recognize this puppy? -- yup.. ANSI 8" interface I was VERY happy someone outbid me on it when I discovered what it was.. If someone has a paper copy of the X3.101 spec, i'd like to add it to the archives on spies. It appears to be based on the Shugart/Quantum 8" drive standard but on a single 50 pin connector instead of a 50 and 26.

22 years, 9 months

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HP CPU

by wmaddox＠pacbell.net

>Manuals include the RTE-6/VM manual. I bought >manuals and >cables; the CPU itself may still be available (I >think asking price was> $300) if anyone is interested. Jack, do you mean you don't want the 1000E/2113B CPU and it's available? If so, let's talk. --Bill

22 years, 9 months

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VCF East in 2004?

by chrisc＠addpower.com

New Orleans would be good, too... :) "Jay West" <jwest(a)classiccmp.o To: "General Discussion: On-Topic and Off-Topic Posts" rg> <cctalk(a)classiccmp.org> Sent by: cc: cctech-bounces@clas Subject: Re: VCF East in 2004? siccmp.org 11/17/2003 02:42 PM Please respond to "General Discussion: On-Topic Posts Only" c'mon... what about VCF central Sellam?? :) ----- Original Message ----- From: "Curt vendel" <curt(a)atarimuseum.com> To: <dwoyciesjes(a)comcast.net>; "General Discussion: On-Topic and Off-Topic Posts" <cctalk(a)classiccmp.org> Sent: Monday, November 17, 2003 2:40 PM Subject: Re: VCF East in 2004? > Danbury is also a superb area, you've got the Danbury Mall, there is also > the airport there, lots of hotels with convention centers connected, I think > also Metro North rail isn't too far either. > > > > Curt > > > ----- Original Message ----- > From: "David Woyciesjes" <dwoyciesjes(a)comcast.net> > To: "General Discussion: On-Topic and Off-Topic Posts" > <cctalk(a)classiccmp.org> > Sent: Monday, November 17, 2003 10:17 AM > Subject: Re: VCF East in 2004? > > > > Curt Vendel wrote: > > > > > > Sellam, > > > > > > Any chance of a VCF East in 2004? A location in CT would be great, > it > > > would be a good midpoint for all the collectors in MA/NH/RI and the ones > in > > > NY/NJ/PA. There are a lot of hotels with conference halls around the > > > Buckland Mall (exit 62?) off of RT-84 CT, plus with the mall, and lots > of > > > local fast food and restaurants, there would be plenty for show goers to > do > > > before/after the show. There is a massive videogame (2nd largest show > in > > > the US next to www.austingamingexpo.com which is the largest) event in > > > March: www.phillyclassic.com so if you could schedule around it, that > would > > > be great. > > > > > > Curt > > > > Actually, the New Haven/Danbury/Hartford areas might be a better option > > for those coming from the south, rather than eastern CT... > > > > -- > > --- Dave Woyciesjes > > --- ICQ# 905818 > > --- [This E-mail scanned for viruses by Declude Virus]

22 years, 9 months

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