December 2001 - test-drb@ccmp.vtda.org

VAX 6400 booting saga: barred from using MULTINET (sigh!)

by gunther＠aurora.regenstrief.org

Robert Schaefer wrote: >>Here is what you do: If you have a TK70 writable tape, you simply >>do SAVE EEPROM for those processors that you will update. Then >>switch to the processor with the prevailing EEPROM image and say >>UPDATE or UPDATE ALL ... can't remember off the bat here. Just make >>sure you upgrade them all to the most recent revision. >> > > I'd like to archive a copy of all (both?!?) the versions I have, just to > keep the bits from fading away. Only trouble is, I only have one, suspect, > TK70 tape. You can use TK50 tape as well. Just put them under a bulk-eraser first. It is said that the media is actually physically the same, just different labels. > If I had ole' Betsy booting into NetBSD, I'd just dd an image of > the tape and reuse it each time, but she don't, and I dunno if it's even > possible to make a bit-for-bit copy of anything under VMS. It's less difficult than you think. But I know just what you mean, VMS is just trying to be too clever :-). But you can do binary copies, just do this: $ MOUNT/FOREIGN/BLOCK=512/RECORD=512 MUC6: $ COPY MUC6: FILE.001 $ COPY MUC6: FILE.002 Now you don't know off hand what the block size on the tape is. I think, if you pick a block size smaller than the tape's, you will receive error messages. Experiment with it a little bit. Analogously, copy as many files as you can, for you don't know how many files the SAVE EEPROM command has written. -Gunther -- Gunther Schadow, M.D., Ph.D. gschadow(a)regenstrief.org Medical Information Scientist Regenstrief Institute for Health Care Adjunct Assistant Professor Indiana University School of Medicine tel:1(317)630-7960 http://aurora.regenstrief.org

23 years, 7 months

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Rescue list?

by mcguire＠neurotica.com

On December 10, LFessen106(a)aol.com wrote: > > I think Bill no longer considers it really Sun-specific, Linc.. > > That's the impression I get as well. Well, he announced it, and all... 8-) -Dave -- Dave McGuire St. Petersburg, FL

23 years, 7 months

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Rescue list?

by LFessen106＠aol.com

In a message dated 12/10/01 1:32:29 PM Eastern Standard Time, mcguire(a)neurotica.com writes: > I think Bill no longer considers it really Sun-specific, Linc.. > > -Dave > That's the impression I get as well. -Linc. In The Beginning there was nothing, which exploded - Yeah right... Calculating in binary code is as easy as 01,10,11.

23 years, 7 months

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Availability of DSP56K chips

by mcguire＠neurotica.com

On December 10, Carlos Murillo wrote: > So my question to the list is: do you know where to get dsp56001A > chips? Or better yet, do you have some that you don't plan to use? I found a small pile of them on eBay about a year ago. I don't recall how much I paid, but I remember thinking it was pretty cheap. I may have some left...I will dig for them when I get over to my new place. Ping me off-list if you don't hear from me by tomorrow. -Dave -- Dave McGuire St. Petersburg, FL

23 years, 7 months

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Smoking around computers

by dhquebbeman＠theestopinalgroup.com

> On Mon, 10 Dec 2001, Richard Erlacher wrote: > > Bear in mind that I'm a FORMER smoker, and that there's no Catholic like a > > convert, as they say ... > > I've disassembled a number of CDROM drives that clearly suffered from > > D'ya mean that retractable ashtray holder? > > I once encountered a TRS-80 whose keyboard wasn't working due to a > chronic accumulation of marijuana seeds that had fallen in. One for to rot, One for the crows, One for the farmer, and one for the keyboards rows? -dq

23 years, 7 months

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11/44 power problem... (Oh, not again...)

by dhquebbeman＠theestopinalgroup.com

> On Sun, Dec 09, 2001 at 06:20:52PM -0500, Dave McGuire wrote: > > Well, by way of explanation... My trademark on the rescue list is to > > say "Is she cute?" for ANY mention of any sister, wife, female > > coworker, any female at all. Somehow I didn't think that'd go over > > very well on this list. In spite of the unbelievably long off-topic > > threads that occur here, this is definitely a much less "social" and > > more "down to business" mailing list. ;) > > Actually, its "is she cute"? followed by "does she have a > sister?" 8-) > > Bill (admin of the sunrescue list, > www.sunhelp.org/mailman/listinfo/rescue) Suns got their own rescue list! (with a nod to Johnny Hart)... -dq

23 years, 7 months

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11/44 power problem... (Oh, not again...)

by DAW＠yalepress3.unipress.yale.edu

Not a bad truck... Let's see, 96 S-10? 2WD, right? And does it really _use_ the cowl-induction hood scoop? ;) --- David A Woyciesjes --- C & IS Support Specialist --- Yale University Press --- mailto:david.woyciesjes@yale.edu --- (203) 432-0953 --- ICQ # - 905818 ! -----Original Message----- ! From: Daniel A. Seagraves [mailto:DSEAGRAV@toad.xkl.com] ! Sent: Sunday, December 09, 2001 11:30 PM ! To: classiccmp(a)classiccmp.org ! Subject: Re: 11/44 power problem... (Oh, not again...) ! ! ! [Is she cute?] ! ! I dunno. She's my sister. She's more of a pain in the ass ! than anything. ^_^ ! http://www.lunar-tokyo.net/pictures/ she's in there somewheres. ! ! ------- !

23 years, 7 months

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Toshiba T2200SX

by tordsson＠c2i.net

My Toshiba doesn't work! Is it any place out there where I can buy a new "head card"? Answer

23 years, 7 months

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Several Apollo computers for free - Raleigh, NC

by cdrice＠pobox.com

My mail to this list keeps bouncing, but I'm still getting the digests. I haven't seen my message in a digest, so I'm assuming no one else saw it either. So, here we go (again) -- sorry if everyone gets this three times... -------- Original Message -------- I've been following this list for some time; however, recent family emergencies have required me to give up most of my hobbies for some time, and likely in the future. I'm also having to move rather quickly across the state and sell my home in Raleigh; I'm selling and giving away a number of things that I just don't see myself having time to deal with in the near future. Among them are several Apollo computers, and stack of misc. hardware (token ring parts and cables, misc. video and i/o cables, etc). and a very large stack of documentation. There are free (unless you feel compelled to make a donation to the feed- a-Chuck fund). :) >From my notes (I do NOT absolutely guarantee this is accurate): - 3500 with: - 170MB HD - SMS/Omti controller - mono video card - 19" mono monitor - 32MB RAM - 3COM 3C505 - DomainOS 10.4.1 - 5 1/4" disk drive - 3000 (unknown contents) - 3500 (unknown contents) - 2500 (unknown contents) - Another CPU (maybe a 4000?) with color card and monitor; I don't have all the specs with me, but it was fully functional when I last shut it down. - Apollo token ring - Isolan multiplex repeater - Lots of misc. parts (cables, keyboards, etc.) - Lots and lots of books; some still in original shrink-wrap **I WILL NOT SHIP THESE ITEMS.** Sorry; they're just too heavy and bulky for me to package and ship; I just have too much else going on right now. With everything going on, I STRONGLY prefer someone take everything. I will not be able to take the time to go through any of this and pick out parts that people want. I am in Garner, NC (just south of Raleigh). I can provide exact location and directions upon request. I am usually only in town on Thursdays and Fridays. Please email me if you are interested and we can work out the details. Please help me find a home for these guys; if I don't find a taker pretty soon, they'll have to go to the recyclers. - Chuck -- | Charles Dee Rice ------------------------------------- cdrice(a)pobox.com | | "You know how it is with me baby - You know I just can't stand myself | | It takes a whole lot of medicine, darlin' | | For me to pretend I'm somebody else." |

23 years, 7 months

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Rescue list?

by dhquebbeman＠theestopinalgroup.com

> What rescue list? > > For all the rest of us who were going to ask but didn't want > to look stupid, I thank you. 8^)= I *think* he's referring to a human rescue list, i.e. paramedics, people who fly helicopters, rappel down the sides of cliffs, looking for lost or injured people. -dq

23 years, 7 months

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Rescue list?

by LFessen106＠aol.com

In a message dated 12/10/01 11:22:48 AM Eastern Standard Time, Lee.Davison(a)merlincommunications.com writes: > > > > > > > What rescue list? > > For all the rest of us who were going to ask but didn't want > to look stupid, I thank you. 8^)= > > He is most likely speaking of the SunRescue list. You can find it at http://www.sunhelp.org/mailman/listinfo/rescue Come and join the fun :-) -Linc. In The Beginning there was nothing, which exploded - Yeah right... Calculating in binary code is as easy as 01,10,11.

23 years, 7 months

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Rescue list?

by Lee.Davison＠merlincommunications.com

What rescue list? For all the rest of us who were going to ask but didn't want to look stupid, I thank you. 8^)= Lee. ---------------------------------------------------------------------------- ---- This email is intended only for the above named addressee(s). The information contained in this email may contain information which is confidential. The views expressed in this email are personal to the sender and do not in any way reflect the views of the company. If you have received this email and you are not a named addressee please delete it from your system and contact Merlin Communications International IT Department on +44 20 7344 5888. _____________________________________________________________________ This message has been checked for all known viruses by Star Internet delivered through the MessageLabs Virus Scanning Service. For further information visit http://www.star.net.uk/stats.asp or alternatively call Star Internet for details on the Virus Scanning Service.

23 years, 7 months

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Apple Floppy Drives (was: More Apple Pimpers)

by csmith＠amdocs.com

> -----Original Message----- > From: Louis Schulman [mailto:louiss@gate.net] > They probably existed, but I don't recall ever seeing a > non-bootable program disk for an Apple II. And data > disks are not much use without program disks. Well, there was a funny little program that would allow you to "remove DOS >from a disk to save space" or the like. I assume this would produce just such a non-bootable disk. Regards, Chris Christopher Smith, Perl Developer Amdocs - Champaign, IL /usr/bin/perl -e ' print((~"\x95\xc4\xe3"^"Just Another Perl Hacker.")."\x08!\n"); '

23 years, 7 months

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Need "PC Mouse" driver for PCjr ..

by csmith＠amdocs.com

> -----Original Message----- > From: UberTechnoid(a)home.com [mailto:UberTechnoid@home.com] > The new optical mice rock hard core man. I can't believe it, but now > there is a mouse that will track on your ASS. I play Isn't that uncomfortable? I'd rather have a special hard-to-find mouse-pad. :) Regards, Chris Christopher Smith, Perl Developer Amdocs - Champaign, IL /usr/bin/perl -e ' print((~"\x95\xc4\xe3"^"Just Another Perl Hacker.")."\x08!\n"); '

23 years, 7 months

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Apple Floppy Drives (was: More Apple Pimpers)

by erd_6502＠yahoo.com

--- Louis Schulman <louiss(a)gate.net> wrote: > Commodore PET drive system. Holy smoke, a whole second computer just > to operate the drives, and even then, blecch. Being a PET user from way back, I always liked the Commodore drives from one particular aspect - they were intellegent peripherals. You didn't bang on a couple of registers to make magic things happen (like on the Apple), you communicated your request and it did what you asked or it told you why it didn't work. The thing I did *not* like about them was that they were scorchingly expensive. By the time I could afford a PET drive, nobody cared anymore. I think my first 4040 was about $10 >from the university surplus. I also liked the fact that the PET did not need boot disks. I saw that as a major source of problems watching my friends sort through piles of Apple floppies, looking for a DOS3.3 disk. -ethan __________________________________________________ Do You Yahoo!? Send your FREE holiday greetings online! http://greetings.yahoo.com

23 years, 7 months

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overclocking older processors

by Antonio.Carlini＠riverstonenet.com

> Dave McGuire wrote: > > I was just reminded of when I overclocked an F11 chipset on a >PDP-11/23 (KDF11-A) to 18MHz. It seems to me that it might be >possible to overclock the 78032 on a KA630. Anybody ever done that? I've just sent EK-78032-UG, basically the 78032 User Guide over to DFWCUG. You can see the gory details once it arrives and they put it up. In the meantime, from Appendix A, clock period is variable from 25ns to 250ns i.e. 40MHz to 4MHz. It specifically states (somewhere) that the part will *not* work down to DC. The clock should be held in the high and low states for 16ns each, so even with infinitely fast rise and fall you cannot do better than 32ns and stay reliable across all parts and all temperature ranges. Now if you are willing to restrict the temperature range and hope to work on just *most* parts, who knows :-) Tweaking a MicroVAX II won't buy you much. I doubt you could bump the clock by much more than say 20% without something going horribly wrong. And the uVAX II is a fairly well balanced system: the memory cycle is just about right for the CPU (I think it works out that the CPU cycle time matches the memory cycle time - hence no need for cache). So if you up the CPU clock, you need to find some way to speed up the memory otherwise you don't even see your modest 20% gain. Antonio

23 years, 7 months

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iPDS questions

by healyzh＠aracnet.com

I'm sure glad to see the list is back up, I originally tried the following message on Tuesday. I still don't know anything more about the system. Unfortunatly it's been raining really hard around here since Tuesday, so the system is still sitting at work, and I've not really been able to examine it. Zane I'm still a little shocked. I just found a working iPDS system, complete with documentation and some software. Unfortunatly I don't think a lot of it is still readable. I did get the system to boot and pass all diagnostics. I know nothing about these beasties, from looking at the doc's it's obviously i8085 based with 64k RAM. It's got a single 5 1/4" floppy, and it's in a case slightly smaller than a Kaypro II. In the area behind the CRT is a storage area for two pods that each handle two different sizes of PROMs, these plug into a hole in the right side of the case. What on earth filesystem are the floppies? Are any kind of software images available to replace the dead floppies? Is there any software to read and write to the floppies from MS-DOS? Basically the main thing I'm interested in is the systems ability to read and write PROMs. I wouldn't mind being able to use this to support my DEC hardware :^) Zane -- | Zane H. Healy | UNIX Systems Administrator | | healyzh(a)aracnet.com (primary) | OpenVMS Enthusiast | | | Classic Computer Collector | +----------------------------------+----------------------------+ | Empire of the Petal Throne and Traveller Role Playing, | | PDP-10 Emulation and Zane's Computer Museum. | | http://www.aracnet.com/~healyzh/ |

23 years, 7 months

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Smoking around computers

by DAW＠yalepress3.unipress.yale.edu

! > > Speaking of which, ever open a machine formerly owned by a ! > > dog/cat owner? ! > All the time (we have several cats). I've never had any cat hair ! > in my systems, since I don't allow the cats in the computer room ! > (except for my favorite cat, who likes to sleep in his basket in ! > the corner or on the back of my chair while I'm in there). ! ! Unless they get into territorial marking, they don't stink ! them up much. ! ! But, expect cat and dog hair. In particular, expect cat hair in ! keyboards; cats take to keyboards like taxi drivers take to ! beaded seat ! cushions! This is where a Keyboard tray comes in very handy! --- David A Woyciesjes --- C & IS Support Specialist --- Yale University Press --- mailto:david.woyciesjes@yale.edu --- (203) 432-0953 --- ICQ # - 905818

23 years, 7 months

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11/44 power problem... (Oh, not again...)

by mcguire＠neurotica.com

On December 9, Zane H. Healy wrote: > >> > Respectfully suggest, use your kid sister to probe the voltage > >> points. > >> > >> Waiting for the inevitable McGuire "is she cute?". > > > > I try to reserve that for the rescue list...less "offendable" crowd > >over there. ;) > > I'll have you know I'm offended by the accusation that we're easily > offended around here! :^) Well, by way of explanation... My trademark on the rescue list is to say "Is she cute?" for ANY mention of any sister, wife, female coworker, any female at all. Somehow I didn't think that'd go over very well on this list. In spite of the unbelievably long off-topic threads that occur here, this is definitely a much less "social" and more "down to business" mailing list. ;) -Dave -- Dave McGuire St. Petersburg, FL

23 years, 7 months

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PDP 11/34 Console & cards

by fcharp＠rogers.com

Hi, I have sitting on my shelf a PDP 11/34 working unit rescued from the recyclers. The system was operational when decomissioned. Caveat: no power supply. So the pieces or the whole are up for grabs, shipping costs only. I thought they may be of interest to the right people, since most of the boards were original DEC. I also have a CD-ROM full of DEC maintenance and service documents for the PDP series. Any interest in that, ask for details. Be aware that I live in Ottawa, Canada. Here is the list of cards found in there. I am not sure it is complete, because I may have listed only the ones I could actually recognize. PDP 11/34 CARDS DIGITAL M7762 RL11 U RX01 floppy disk controller M7856 DL11-W U SLU and realtime clock M7859 U 11/34 programmable console interface M8256 RX211 U RX02 floppy disk controller M8265 KD11-EA U 11/34A processor data paths M8266 KD11-EA U 11/34A processor microcode module M8267 FP11-A U 11/34A floating point processor M9202 U UNIBUS connector, inverted (M9192+M9292 assembled M9202 1" apart with 2' cable) M9312 U Bootstrap and terminator module OTHER Dataram Corp U 256K DRAM board The system was obviously well cared for and was not even dusty. The console board is the one that includes an Intel 8008 processor. The system case and front-end are impeccable. I don't collect PDP equipment, but I hate to see a nice system go to the junkyard. At the same time, I need to make room for other masterpieces in peril. Cheers, Frederic Charpentier

23 years, 7 months

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Rescue list?

by acme_ent＠bellsouth.net

> From: Dave McGuire <mcguire(a)neurotica.com> > Well, by way of explanation... My trademark on the rescue list is to > say "Is she cute?" for ANY mention of any sister, wife, female > coworker, any female at all. What rescue list? Glen 0/0

23 years, 7 months

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Fw: PDP 11/34 Console & cards

by fcharp＠rogers.com

All, With regards to the DEC CDs, I will extract the titles of the manuals (about 200, I think) and post them. There are too many service bulletins and the titles are all numbered, so I won't have the time for that. For those who requested the CD's, I will let you know when they are ready -- some time this week. I am not sure that mounting images of the CDs on ftp is a good idea (I don't know what the copyright issues are there), but I don't mind making copies for those who want them. ...oh -- and yes, I will let you know about the stuff that I would like to get pretty soon... :-) Cheers, Frederic Charpentier

23 years, 7 months

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VAX 6400 booting saga: barred from using MULTINET (sigh!)

by pete＠dunnington.u-net.com

On Dec 9, 18:13, Jerome Fine wrote: > Memorex used to have a web site that listed all the properties of > DECTape (i.e. I for the TK50 with the name in brown) on the plastic > holder and DECTape II (II i.e. for the TK70). ObNitPick (just to prove we're back in list mode :-)): I believe Jerome means CompacTape and CompacTape II. DECTape is the 3/4" stuff on the "funny little reels". Nominal capacities are 95MB for TK50 and 295MB for TK70. I suspect a larger blocking factor will indeed get you more partitions on the TK70. -- Pete Peter Turnbull Network Manager University of York

23 years, 7 months

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Seeking info and parts for MicroVax II BA123

by mcguire＠neurotica.com

On December 8, Tothwolf wrote: > Another interesting tidbit about this box, it still has its inventory > sticker from NASA, and it orig cost good old uncle sam $22,000+. Anyone > else wonder why they didn't have it outfitted with a network interface of > somesort, especially with it costing that much already? Not at all. Not all computers are used as part of networks, you know. ;) -Dave -- Dave McGuire St. Petersburg, FL

23 years, 7 months

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AM radio music

by dhquebbeman＠theestopinalgroup.com

> If I remember correctly, there was a machine code program > printed once to play "music" with a ZX80 using this method! Older. Dr. Dobb's Journal, Issue #2... 8080 code, played Daisy and something else, modulating the S-100 INT signal. -dq

23 years, 7 months

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Anyone interested in a modem-design book?

by dpeschel＠eskimo.com

The local Barnes and Noble has one copy of this book: The Theory and Practice of Modem Design John A.C. Bingham Format: Hardcover, 1st ed., 480pp. ISBN: 0471851086 Publisher: Wiley, John & Sons, Incorporated Pub. Date: November 1990 It's not cheap ($160) but it looked reasonably meaty and I doubt it's easy to find. If anyone wants it, let me know. -- Derek

23 years, 7 months

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IBM 3274-61C controller

by rhblakeman＠kih.net

Well after some searching I find that this monster is a "controller" (I guess a terminal or network controller). Anyway I'm taking offers (shipping would be added to the offer unless you pick up in KY) for it - condition (other than good general external condition) is unknown, haven't even put a powr cord to it yet.

23 years, 7 months

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overclocking older processors

by mcguire＠neurotica.com

I was just reminded of when I overclocked an F11 chipset on a PDP-11/23 (KDF11-A) to 18MHz. It seems to me that it might be possible to overclock the 78032 on a KA630. Anybody ever done that? -Dave -- Dave McGuire St. Petersburg, FL

23 years, 7 months

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Ergo KB

by dhquebbeman＠theestopinalgroup.com

> Chris- > > Whew, sorry I forgot about you, with the list > being down, the depression nuked my recall. Oops! Sorry, meant to press the "private send" button... again... -dq

23 years, 7 months

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8" drives and PSUs.

by ard＠p850ug1.demon.co.uk

A non-text attachment was scrubbed... Name: not available Type: text Size: 1161 bytes Desc: not available Url : http://www.classiccmp.org/pipermail/cctalk/attachments/20011209/0497d7d3/at…

23 years, 7 months

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Remington Rand 409 (this already has been posted!)

by ae＠alum.mit.edu

I am helping to gather original documents and/or artifacts concerning the Remington Rand 409-series computers for the Remington Rand 409-series museum being set up in Rowayton, CT. The models of interest are the 409-2 and the 409-2R. These are tube, punch-card, and programming panel machines >from the 1950s. We are interested in documenting the location of all surviving artifacts, but also would like to acquire particularly interesting items by donation or purchase. We are looking specifically for anything related to the programming of these machines, such as the programming panels, programming manuals, or the programming jumper wires. Photographs or drawings of programming panels (originals or reproduced in third-party publications), with or without programs wired on them, also would be of interest. If you have any of the above, or have more general items such as Remington Rand brand computer tubes or punch cards, whether or not you wish to sell or donate them, please e-mail me at: egendorf(a)mit.edu. Thanks.

23 years, 7 months

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11/44 power problem... (Oh, not again...)

by mcguire＠neurotica.com

On December 9, Zach Malone wrote: > > Respectfully suggest, use your kid sister to probe the voltage > points. > > Waiting for the inevitable McGuire "is she cute?". I try to reserve that for the rescue list...less "offendable" crowd over there. ;) -Dave -- Dave McGuire St. Petersburg, FL

23 years, 7 months

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Ergo KB

by dhquebbeman＠theestopinalgroup.com

Chris- Whew, sorry I forgot about you, with the list being down, the depression nuked my recall. The S&H looks like $5, so $30 will take it. You can send those government agents with my funds to: The Estopinal Group attn: Doug Quebbeman 903 Spring Street Jeffersonville, IN 47130 Again, sorry about that! Regards, -doug q

23 years, 7 months

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11/44 power problem... (Oh, not again...)

by DSEAGRAV＠toad.xkl.com

Same machine, new problem. ^_^ Whilst out in the garage playing with the 44 (which I still don't have an OS for...), my kid sister and one of her friends come out to the garage to smoke. (They're not allowed to smoke in the house.) Anyway, while the 44 is running, her friend says, "Wow, that's loud!", to which Monica replies "This one's louder!" and turns on the KS10... You know what's coming. And we had christmas tree packages and such all over the garage, too, so navigating the garage in the dark was real fun... (For those who didn't see it coming, the garage breaker went...) Anyway, after resetting the breaker, waiting for the VAX to reboot, checking that the KS10 was still in working order (I wouldn't be mailing if the KS10 was broken. I'd be busy burying my sister. ^_^) and putting back all the boxes I stepped on or knocked over, it was discovered that the 11/44 no longer powered on. The power control lights are on, the RX02 and SCSI disks inside the case work, but the BA11 (Is that the right part?) will not turn on. When you turn the switch on the front panel, nothing happens. No click, no fans, nothing. The breaker on the back of the BA11 did not trip. I turned it off and back on, nothing happened. I ran the AC power checks in the manual and nothing happened. I checked the front-panel wiring was still connected, it was. I pulled and reseated the front-panel control board in the UNIBUS. Nada. It looks like it should be working, it doesn't smell burnt, and I opened the top of the BA11 power supply and looked inside, and it looks really scary (what, with the THIS VOLTAGE WILL KILL YOU stickers and wires thick as my fingers and whatnot...) but it doesn't look burnt. Is there a hidden switch or fuse or something in there? That's what it looks like... Failing that, someone got directions for checking out an 11/44 power supply? -------

23 years, 7 months

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iPDS questions

by mythtech＠Mac.com

>> There was an optional second processor board that you could install >> and it became a true dual processor machine. You could switch >> between the two processors with a hot key. Both processors could be >> independently compiling, editing, debugging, etc. > > Oh now THAT is cool. :-) > > Anybody know of any other systems to implement this sort of of >functionality? The same concept is used for the Mac's and their PC cards. The Intel chip is placed on a card, and it runs independant of the mac (but shares some features like drive controller, stuff like that). You swap between them with a hot key, and you can have things running on each (ie: start something heavy on the Mac, swap to windows/dos/whatever OS you are running, it is a true Intel compatible setup, and run things there.) Swap between as much as you want, each will continue to run, being blissfully unaware the other is there. Connection between the two is nice, you can have shared folders between them. The Mac will view it as a folder, the PC will view it as an additionally available drive. And you can cut and paste between the two. Very nice setup, too bad Apple abondoned them, and stopped upgrading the driver software, so they don't work too well past System 7.6.1 (they will work under OS 8 and 9, but some problems can arise) -chris <http://www.mythtech.net>

23 years, 7 months

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iPDS questions

by mcguire＠neurotica.com

On December 9, Zane H. Healy wrote: > > Anybody know of any other systems to implement this sort of of > >functionality? > > The DEC Rainbow has two different CPU's in it, however, I don't know if you > can run different stuff on each one at the same time. IIRC, it has a Z80 > and a 8086 so you can run different software (sort of like the > Commodore 128 running Commodore or CP/M software). I thought that was an 8088...but as far as I'm aware you can't run them independently. -Dave -- Dave McGuire St. Petersburg, FL

23 years, 7 months

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PDP 11/34 Console & cards

by fcharp＠rogers.com

All, Well, that was quick. The system is spoken for. Thanks to all for their interest. Regarding the DEC service CD: in fact, there are 2 CDs. They are full of manuals and service stuff, BUT they cover more recent equipment than the PDP. The last dates on the CD are 1994, which says that there is a lot of VAX-related material on the discs, but not much with regards to PDP. My apologies. Anyway, I already had a couple of requests for them, so I guess I'll be giving the ol'burner a run for its money. Cheers, Frederic Charpentier

23 years, 7 months

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Bubble sorts have their place

by ard＠p850ug1.demon.co.uk

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History of Computing exam question

by ard＠p850ug1.demon.co.uk

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iPDS questions

by mcguire＠neurotica.com

On December 9, Dave Mabry wrote: > There was an optional second processor board that you could install > and it became a true dual processor machine. You could switch > between the two processors with a hot key. Both processors could be > independently compiling, editing, debugging, etc. Oh now THAT is cool. :-) Anybody know of any other systems to implement this sort of of functionality? -Dave -- Dave McGuire St. Petersburg, FL

23 years, 7 months

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11/44 power problem... (Oh, not again...)

by dhquebbeman＠theestopinalgroup.com

> Is there a hidden switch or fuse or something in there? That's what it looks > like... Failing that, someone got directions for checking out an 11/44 > power supply? Apples and Oranges, but Primes have an A/C distribution box in the back that the big round A/C plug goes into... this whole box removes from the chassis, and when disassembled, reveals a fuse inside along with something that looks like an EMI filter. The fuse is replaceable without soldering... ...but this is a Prime, not a PDP-11/44, but I'd look for something similar... -dq

23 years, 7 months

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Seeking info and parts for MicroVax II BA123

by tothwolf＠concentric.net

Well, after all the talk about a MicroVax II BA123 on the list lately, I managed to unbury mine. It appears to be all original except for 2 hard drives that may have been added as an upgrade. All the boards match up with the DEC sticker with handwritten board numbers. It has the standard cpu board, what seems to be a 2mb ram board, a serial interface board w/ 8 ports, and the standard scsi and tape interface boards. It also has some sort of loopback board in the upper 3rd slot. Does anyone have a link to reference info on these boards? I'd like to find a pair of 8mb ram boards and a network interface for this thing, so I can put it back in service for open source software development/testing. I don't know the part numbers for these boards, so any extra info would be great. I'm also looking for the door that covers the front control panel, as this machine seems to have lost its door at some point before I rescued it. If anyone has any of these parts laying around, please drop me an email. I'm more then willing to pay shipping. I really don't think I have much of anything anyone here would want as a trade, so I'm willing to pay for the parts too if required. Another interesting tidbit about this box, it still has its inventory sticker from NASA, and it orig cost good old uncle sam $22,000+. Anyone else wonder why they didn't have it outfitted with a network interface of somesort, especially with it costing that much already? -Toth

23 years, 7 months

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Stacking Apple ][ stuff

by pete＠dunnington.u-net.com

On Dec 8, 19:44, Ethan Dicks wrote: > --- John Lawson <jpl15(a)panix.com> wrote: > > Aluminium = non-magnetic Iron = magnetic in terms of marginal > > shielding from external fields. > > Do para-magnetic cows go "mu"? Oh, no, the list has been back up for an hour and already we have bad puns :-) Well done, Jay! I saw the archive come back a while ago, and I wondered when you'd get the list done. -- Pete Peter Turnbull Network Manager University of York

23 years, 7 months

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Apple Floppy Drives (was: More Apple Pimpers)

by erd_6502＠yahoo.com

--- "Fred Cisin (XenoSoft)" <cisin(a)xenosoft.com> wrote: > Here's what you need to do to get reliable results from Apple drives: > > > And I am probably a good test of real world abuse to the Apple Drive ][ > > drives, as I was just a wee child, and I didn't follow any rules that > > I probably should have... My former boss at Software Productions (we wrote kiddie software for home computers under the Reader's Digest label) put a story in an early version of the docs of how he fired up his Apple ][ to run CP/M and the disk drive made odd noises... he took it in for service and the tech extracted fragments of a Peanut Butter & Jelly sandwich. Seems his kids were playing games and eating PB&J and decided the computer must be hungry, too... It's not just oatmeal in the VCR... -ethan __________________________________________________ Do You Yahoo!? Send your FREE holiday greetings online! http://greetings.yahoo.com

23 years, 7 months

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iPDS questions

by Innfogra＠aol.com

In a message dated 12/8/01 7:23:23 PM Pacific Standard Time, healyzh(a)aracnet.com writes: > I just found a working iPDS system, complete > with documentation and some software. Unfortunately I don't think a lot of > it is still readable. I did get the system to boot and pass all > diagnostics. > > I know nothing about these beasties, from looking at the doc's it's > obviously i8085 based with 64k RAM. It's got a single 5 1/4" floppy, and > it's in a case slightly smaller than a Kaypro II. In the area behind the > CRT is a storage area for two pods that each handle two different sizes of > PROMs, these plug into a hole in the right side of the case. > Hi Zane; Nice find. I just dug out a couple iPDSs out of my storage locker that I am getting ready for sale. I may be interested in some copies of the documentation. I also have some disks but have not checked their condition. You are right that they are 8085 systems. Besides EPROM programmers there was also an EMV 51 emulator pod for IIRC debugging the 8051. There are also external floppy disk drives that daisy chain to it. It also ran CPM. I believe Fred's Xenocopy program will copy diskettes for it. IIRC they are standard 360K DSDD drives. Paxton Astoria, OR

23 years, 7 months

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Houston Classic Computers was {Off-Topic: Re: Anyone have a MicroVax II in a BA123 available?}

by msell＠ontimesupport.com

I don't know of a formal (or informal....) classic computer user group in Houston, but I would love to participate in one. I know that there are several of us in Houston. I met with David and Mitch recently; very nice people. David has a real neat collection of older "personal" computers and some other Unix-class boxen as well. Obviously there are more of us, an informal gathering would be neat. - Matt >Now, to change the subject of this thread, does anyone know of any >"classic computer" user groups in the Houston area? > >-Toth Matthew Sell Programmer On Time Support, Inc. www.ontimesupport.com (281) 296-6066 Join the Metrology Software discussion group METLIST! http://www.ontimesupport.com/cgi-bin/mojo/mojo.cgi "One World, One Web, One Program" - Microsoft Promotional Ad "Ein Volk, Ein Reich, Ein Fuhrer" - Adolf Hitler Many thanks for this tagline to a fellow RGVAC'er...

23 years, 7 months

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Stacking Apple ][ stuff

by mcguire＠neurotica.com

On December 8, Ethan Dicks wrote: > > Aluminium = non-magnetic Iron = magnetic in terms of marginal > > shielding from external fields. > > Do para-magnetic cows go "mu"? You are a sick, sick man. -Dave -- Dave McGuire St. Petersburg, FL

23 years, 7 months

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Stacking Apple ][ stuff

by erd_6502＠yahoo.com

--- John Lawson <jpl15(a)panix.com> wrote: > Aluminium = non-magnetic Iron = magnetic in terms of marginal > shielding from external fields. Do para-magnetic cows go "mu"? -ethan __________________________________________________ Do You Yahoo!? Send your FREE holiday greetings online! http://greetings.yahoo.com

23 years, 7 months

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Anyone parting with a Wyse 60

by mythtech＠Mac.com

Does anyone have a Wyse 60 they want to part with on the cheap? (working only please... I have a dead one thanks) I tried buying one on ebay a few times, and each time, either they were in horrible condition, or went above my price threshold, or I got "ebayed" at the last second by someone outbidding me. I would prefer one in the NJ area that I can drive and pick up as cost is my #1 issue, but if total cost (buy + shipping) isn't too bad, I will accept shipped ones. I might have stuff to trade, but most everything I have that is available to be parted with is PC related, which A: isn't as popular here, and B: isn't as hard to get as other systems. I do have a C64 or two (don't know functional condition), maybe some other stuff (like these Zebra 2500 manuals I keep tripping on) If you have something in mind, let me know, I will see if I have it. Thanks -chris <http://www.mythtech.net>

23 years, 7 months

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1961 build-your-own computer book

by mranalog＠attbi.com

I just recently found a cute little computer book called "I can learn about Calculators and Computers" by Raymond G. Kenyon, Harper & Brothers, 1961 112 pages. The chapters are entitled: How Early Man Counted and Computed The Story of Modern Computers Construct Your Own Calculators and Computers - - Oriental Abacus - John Napier's Bones - Slide Rules - "Stepped-Wheel" Calculator - Digital Computer - Analog Computer Materials used consist of wood, wire, D-cell batteries, flashlight bulbs, potentiometers, etc. Remember wooden cigar boxes? Regards, --Doug ========================================= Doug Coward @ home in Poulsbo, WA Analog Computer Online Museum and History Center http://www.best.com/~dcoward/analog =========================================

23 years, 7 months

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test-drb December 2001