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

by blacklord＠telstra.com

Hi Dick, > I'll have a look to see whether I have any ROM listings. I > thought I did, > but, well ... they say the mind's the second thing to go ... can't > rememberthe first ... > The AIM is pretty similar to the KIM-1 no ? (I may be mistaken) The KIM's ROM dissasembly is pretty freely available, I have a version that was suppied with a text file on how to build your own using current chips. Made a half hearted start at it, but currently it's gathering dust :-) cheers, Lance ---------------- Powered by telstra.com

24 years, 2 months

2
1
0 0

One-upsmanship (was: Secret Mac

by mythtech＠mac.com

>computer cool factor >We need a unit or label for this number. Calculate your CCF at the VCF -chris <http://www.mythtech.net>

24 years, 2 months

1
0
0 0

"Windows V1.0"

by Innfogra＠aol.com

In a message dated 4/17/02 1:30:35 PM Pacific Daylight Time, healyzh(a)aracnet.com writes: > > Consequently, looking back at the calendar, I think that > > it's far more likely that this is Windows 2.0 or 2.1. > > It's not much help, but the first Z248 that we received had MS-DOS 3.x and > Windows 1.0x floppies included with it. > > I've never seen a copy of Windows 2.x, however, oddly enough I recently > found a shrink-wrapped copy of Windows 1.0 in the trash! > One of the collectors I have been corresponding with has a copy of Heath Zenith Windows 2.1 and it is marked on the spine of the Box. Mine has no version at all. Mine also runs on MS-DOS 2.0. There is another addendum page that indicates how to configure windows with MS-DOS 3.1. There is no mention of MS-DOS 3.3 at all. I was hoping someone had a Heath Zenith catalog from that era, 1985-1986. Thanks for the help. Paxton Astoria, OR

24 years, 2 months

3
2
0 0

VCF Apple-1 Auction 4/19-4/21

by dwightk.elvey＠amd.com

>X-Server-Uuid: e4c4d26a-1188-11d5-b029-00508be35655 >X-Authentication-Warning: ns2.ezwind.net: majordom set sender to owner-classiccmp(a)classiccmp.org using -f >Date: Wed, 17 Apr 2002 17:17:43 -0500 (CDT) >From: Tothwolf <tothwolf(a)concentric.net> >X-X-Sender: <tothwolf(a)strudel.invalid.domain> >To: "Classic Computer" <classiccmp(a)classiccmp.org> >Subject: Re: VCF Apple-1 Auction 4/19-4/21 >MIME-Version: 1.0 >X-WSS-ID: 10A3210192468-01-02 >Content-Transfer-Encoding: 7bit > >On Wed, 17 Apr 2002, Sellam Ismail wrote: >> On Wed, 17 Apr 2002, Tothwolf wrote: > >> If someone has an x-ray machine handy, perhaps we could do it that >> way. > >An x-ray won't work very well. The resolution isn't high enough, and the >image will look fuzzy. It also won't work at all for double sided boards, >which I think are what the Apple I uses. > >-Toth > > Hi That depends on the xray machine you are talking about. The ones we use in industry can see a single unsoldered pin on one of those C4 packages. I'm sure that is more than enough resolution for a PC board. Dwight

24 years, 2 months

1
0
0 0

AIM-65 displays

by erd_6502＠yahoo.com

I am evaluating building a replacement display for the AIM-65 that does not use the DL1416. I have several modern options - a 20x1 LCD is cheap enough, as are more modern 4-char ASCII LED displays. The interface is somewhat trivial - the connector on the AIM-65 mainboard has enough signals to talk to a 6520 PIA (since that's what is on the normal display board to begin with). There are couple of angles to pursue... I have successfully tested a Motorola 6821 in place of the Rockwell 6520 in a real AIM-65. Since I have a few 6520s and many 6821s, that's a win. Either way, it's trivial to hang a display off of the 6502 bus without a PIA in the way. I'm curious if anyone knows why they bothered to put a 6520 on the display card? Did they want to keep the bus loading to a small, known quantity? If so, then I'll consider that any ASCII LED solution I come up with needs to have appropriate signal conditioning. I can't see how a modern LCD display would load the bus any worse than a 6520, so it might be worth the direct approach. So... the hardware is no big deal. The software, though, could be lots more work. I have real ROMs and ROM images. Are there any sources to the AIM-65 ROMs that are in a state to be compiled back into working, matching binaries? If I'm going to change the nature of the display, the code will have to follow. If the code is changing, then there's no reason I can't experiment with a multi-line display - I have a 20x4 VCD and a 20X4 LCD display already in hand. I think I can locate a 40x2 in my junk box, but at first, I'll probably ignore the right half and if I used it, treat it like a 20x2. Is there anyone out there who has done any real AIM-65 hacking? I can start from zero if I have to, but if there's any preexisting work out there, I'd like to see about starting ahead of zero. -ethan __________________________________________________ Do You Yahoo!? Yahoo! Tax Center - online filing with TurboTax http://taxes.yahoo.com/

24 years, 2 months

2
1
0 0

Heath Zenith in a Faraday cage, was Secret Mac

by Innfogra＠aol.com

In a message dated 4/17/02 9:13:12 AM Pacific Daylight Time, foo(a)siconic.com writes: > These things are extremely rare in general, at least out in the wild. > This is only the third to surface, and of all three now documented on the > web (or at least known to be) they are all completely different. > At one time I had a Heath Zenith Z150 PC mounted inside a Metal Faraday cage. Has anyone seen anything like this? I assumed it was for Tempest type protection but then it did come out of the Hanford Nuclear Reservation. (no it didn't glow). Paxton Astoria, OR

24 years, 2 months

3
2
0 0

One-upsmanship (was: Secret Mac

by Lee.Davison＠merlincommunications.com

> In the spirit of this "pecker contest" (as a former > boss of mine would call it), let me suggest the > "ultimate" metric for bragging rights... > cubic-foot-BTU/Hr-lb-amps per KByte-MIPS. Should that read cubicfoot * BTU/Hr * pounds * (amps/KByte) * MIPS ? Should be WATTs rather than AMPs, since the power consumption is the key issue, not the current. In the interest of international relations, should we switch to KG instead of pounds? And cubic meters instead of feet? How about KbyteMIPS / Wm^3 smallest number wins? Steam driven difference engine anyone? 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 e-mail has been scanned for all viruses by Star Internet. The service is powered by MessageLabs. For more information on a proactive anti-virus service working around the clock, around the globe, visit: http://www.star.net.uk ________________________________________________________________________

24 years, 2 months

1
0
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More 11/750 PSU Qs

by Lee.Davison＠merlincommunications.com

Andreas, >> running only one in "voltage source" mode, the >> other(s) in "current source" mode effectively. > This is how any group of paralell power supplies works. And this requires the over-current protection to not shut down the individual supply, but instead have it contribute as much as can safely be done. On the other hand... No. All the supplies are set up as constant voltage. They are paralelled through either load share resistors or blocking diodes. Each can be overcurrent lockout protected as the forward drop of each diode or resistor ensures load sharing. No single supply will be at it's current limit. This is not a theory, this is how regulated paralelled power supplies work. This will be inhibited by the above-mentioned load-sharing feature, so you need some kind of "communication" between the supplies in order to be able either to share load or to completely shut down all others instead of running them in current-limiting mode after some have failed. None of the supplies are ever run in current limit mode, they are all, always, running as voltage sources. In th eevent of faliure once the remaining supplies can no longer cope with the load they all shut down in short measure. No communication is needed. > Use enough supplies so that one faliure is > tollerable. The only thing that needs preparation for this may be mechanics: you wouldn't want to try unscrewing thick power wires and risking them to touch any other metal parts inside a running system... You use off the shelf supplies and they each plug (via the load share network) into the output busbar. No bolts, no screws, just (un)plug and go. So, I think the bottom line is: running PSUs in parallel is something that really can be done, but there are several bells and whistles you need to take into account. It's really quite easy, AT type 'dumb' switchers just need a blocking diode, make sure though that you turn them all on together. .. We get to a point where a microcontroller makes sense to control this, and I have seen this in real systems. As have I. There is nothing more anoying than the faliure of a system because someone decided a microprocessor was needed where Kirchoff's laws would have been sufficient. 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 e-mail has been scanned for all viruses by Star Internet. The service is powered by MessageLabs. For more information on a proactive anti-virus service working around the clock, around the globe, visit: http://www.star.net.uk ________________________________________________________________________

24 years, 2 months

1
0
0 0

"Windows V1.0"

by dquebbeman＠acm.org

> I hesitate to mention this even if it is well over 10 years old. > > I have a copy of Heath Zenith Windows that I posted on eBay. > > http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=2017754574 > > I have been corresponding with collectors as how to verify this is actually > MS Windows 1.0. There are no version numbers at all on the disks, box, manual > and envelopes. > > The Heath Zenith Model Number of the Software package is MS-5063-30. Can > anyone verify what this model number represents? Zenith changed their software packaging a few times over the years. This is the same packaging as what I have on OS/2 1.0, and MS-DOS 3.3+. Consequently, looking back at the calendar, I think that it's far more likely that this is Windows 2.0 or 2.1. Sorry... -dq

24 years, 2 months

2
1
0 0

Windows V1.0

by Innfogra＠aol.com

I hesitate to mention this even if it is well over 10 years old. I have a copy of Heath Zenith Windows that I posted on eBay. http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=2017754574 I have been corresponding with collectors as how to verify this is actually MS Windows 1.0. There are no version numbers at all on the disks, box, manual and envelopes. The Heath Zenith Model Number of the Software package is MS-5063-30. Can anyone verify what this model number represents? Since it comes on 5 5 1/4" 48tpi floppy disks and can be installed in a HZ 8088 PC I feel certain it is original. The manual indicates it can be installed on a two floppy machine besides on a hard drive. Any information would be helpful. Please, no flames... Paxton Astoria, OR

24 years, 2 months

5
5
0 0

One-upsmanship (was: Secret Mac)

by dquebbeman＠acm.org

> From: Douglas H. Quebbeman <dquebbeman(a)acm.org> > > > >My computer dims the neighborhood's lights when I turn it on... > > > >My computer has fewer transistors than yours... > > > >My computer has no transistors, just tubes... > > > >My computer's valves burn out faster than yours... > > > >My computer's got more gears than yours... > > > Then there is... > > My computers daddy is bigger than yours. Hmmm... Gordon Bell is *not* a small man, but "big daddy"? ;) -Douglas Hurst Quebbeman (DougQ at ixnayamspayIgLou.com) [Call me "Doug"] Surgically excise the pig-latin from my e-mail address in order to reply "The large print giveth, and the small print taketh away." -Tom Waits

24 years, 2 months

2
1
0 0

One-upsmanship (was: Secret Mac

by ajp166＠bellatlantic.net

From: Ethan Dicks <erd_6502(a)yahoo.com> > cubic-foot-BTU/Hr-lb-amps per KByte-MIPS. There is a redundant term. >Any other estimates? Should we consider BTU/Hr _or_ Amps (since more >power means more heat) or leave both values in the metric? Naw, thats not right either. It should be Amps*line_volts (or Vars). Then again the vertical stacking distance is another metric. After all Who knows how high that sh!t can pile! Allison

24 years, 2 months

1
0
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One-upsmanship (was: Secret Mac

by mbg＠TheWorld.com

> > > > My computer's heavier than yours. > > > new sig: My computer's got more blinking lights than yours. > > My computer's slower than yours. > My computer is uglier than yours... My computer draws more power than yours... Megan Gentry Former RT-11 Developer +--------------------------------+-------------------------------------+ | Megan Gentry, EMT/B, PP-ASEL | Internet (work): gentry!zk3.dec.com | | Unix Support Engineering Group | (home): mbg!world.std.com | | Compaq Computer Corporation | addresses need '@' in place of '!' | | 110 Spitbrook Rd. ZK03-2/T43 | URL: http://world.std.com/~mbg/ | | Nashua, NH 03062 | "pdp-11 programmer - some assembler | | (603) 884 1055 | required." - mbg KB1FCA | +--------------------------------+-------------------------------------+

24 years, 2 months

1
0
0 0

Heath Zenith in a Faraday cage, was Secret Mac

by dwightk.elvey＠amd.com

>From: Innfogra(a)aol.com > >In a message dated 4/17/02 9:13:12 AM Pacific Daylight Time, foo(a)siconic.com >writes: > > >> These things are extremely rare in general, at least out in the wild. >> This is only the third to surface, and of all three now documented on the >> web (or at least known to be) they are all completely different. >> > >At one time I had a Heath Zenith Z150 PC mounted inside a Metal Faraday cage. >Has anyone seen anything like this? I assumed it was for Tempest type >protection but then it did come out of the Hanford Nuclear Reservation. (no >it didn't glow). > >Paxton >Astoria, OR > Hi When at Intel, we had to shield our Series II machine for a different reason. The early ones would reset when zapped by someone walking across the carpet and touching the key board. Energy can go in various directions. It could have been for security but was just as likely to keep from interfering with the various measurement equipment. Dwight

24 years, 2 months

1
0
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Seeking Interest in Group Purchase, Avery Magtape Labels

by cdl＠proxima.ucsd.edu

> From: "Douglas H. Quebbeman" <dquebbeman(a)acm.org> > To: "ClassicCmp List" <classiccmp(a)classiccmp.org> > Subject: Seeking Interest in Group Purchase, Avery Magtape Labels > Date: Wed, 17 Apr 2002 14:28:34 -0400 > > Hey- > > Avery still lists labels for 9-track tapes, assuming that's > what these are: > > Tape Reel High Speed Computer Labels > 3-7/8" x 1-13/16", White, Dot Matrix, > Removable, 5000 labels per box > 04052 5000 Labels per Box $139.15 > > If there are just ten people on the list who'd have use > for 500 labels, it's close to fifteen bucks per person. > > OTOH, is anyone sitting on a stash of them? I found a > sheet with precisely three labels, and I've quite a > few more tapes than that... Check to see if the adhesive still sticks to anything. My long-term experience with tape-reel labels is that the "permanent' adhesive lets go after 10 years or so, leaving me with a rack of unlabeled tapes and a bunch of labels on the floor. carl -- carl lowenstein marine physical lab u.c. san diego clowenstein(a)ucsd.edu

24 years, 2 months

1
0
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One-upsmanship (was: Secret Mac

by csmith＠amdocs.com

> -----Original Message----- > From: Roger Merchberger [mailto:zmerch@30below.com] > Rumor has it that Hans Franke may have mentioned these words: > >> > > My computer's heavier than yours. > >> > new sig: My computer's got more blinking lights than yours. > >> My computer's slower than yours. > >My computer produces more humming noise than yours. > My computer's *really* hardCORE! ;-) My computer has mercury-filled glass tubes. :) Chris Christopher Smith, Perl Developer Amdocs - Champaign, IL /usr/bin/perl -e ' print((~"\x95\xc4\xe3"^"Just Another Perl Hacker.")."\x08!\n"); '

24 years, 2 months

1
0
0 0

AT&T 7300 Unix PC in Pittsburg, PA

by vcf＠siconic.com

Nathan would like to find a nice retirement home for his AT&T Unix PC. He's in Pittsburg, PA. Please contact him directly. Reply-to: Nathan.Thompson(a)respironics.com ---------- Forwarded message ---------- Date: Tue, 16 Apr 2002 14:01:44 -0400 From: "Thompson, Nathan" <Nathan.Thompson(a)respironics.com> Subject: inquiry I'm looking for a good home for my AT&T 7300 Unix PC. Kinda sorry to see it go, but the wife seems adamant. Let me know if this is an acceptable donation. -Nathan -- Sellam Ismail Vintage Computer Festival ------------------------------------------------------------------------------ International Man of Intrigue and Danger http://www.vintage.org * Old computing resources for business and academia at www.VintageTech.com *

24 years, 2 months

2
1
0 0

UPS was Re: Need Burroughs Tape Spec's

by mcguire＠neurotica.com

On April 16, David Woyciesjes wrote: > Meanwhile, I personally have never had a problem with UPS, and with > the volume of packages coming & going in this building, I've never seen > anything bad either. Maybe just a moron for a driver? I've had this happen in different states, so if it was a moron driver, it must've been multiple moron drivers. -Dave -- Dave McGuire "Mmmm. Big." St. Petersburg, FL -Den

24 years, 2 months

5
6
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missing chips on "new" UNIBUS boards ...

by ajp166＠bellatlantic.net

From: Ethan Dicks <erd_6502(a)yahoo.com> >> I noticed that the KFQSA was missing one socketed >> chip (approx 40 pin DIL, black right in the middle.) > >A microcontroller? A T-11? It's too new for my stuff; never even >seen one. Unfortunately, the picture in the Visual Field Guide at >http://vaxarchive.org/hw/vfg/m7769b1.jpg is none too legible. Sheesh T-11 chip is early 80s. Another part number for the T-11 is D320 (it's a memory test and I'm not home). Allison

24 years, 2 months

1
0
0 0

One-upsmanship (was: Secret Mac

by ajp166＠bellatlantic.net

From: Dwight K. Elvey <dwightk.elvey(a)amd.com> > >Mine's a 4004. What do you use that is slower ( just because >it runs windows doesn't mean the processor is slower). >Dwight in the slowness derby... NEC upD7806, clocked at 32.768khz. It may be slow but it runs Basic and only uses 30uA. Second place is my PDT11/130... file access measured in 10s of seconds due to TU-58. The ugly award still goes to any PC running M$pooge winders. Allison

24 years, 2 months

1
0
0 0

Explain the NeXTStation "dim monitor" problem, etc...

by cdl＠proxima.ucsd.edu

> From: Christopher Smith <csmith(a)amdocs.com> > To: "Classiccmp (E-mail)" <classiccmp(a)classiccmp.org> > Subject: Explain the NeXTStation "dim monitor" problem, etc... > Date: Tue, 16 Apr 2002 10:59:52 -0500 > Sender: owner-classiccmp(a)classiccmp.org > Reply-To: classiccmp(a)classiccmp.org > > Ok, I've got my NeXTStation working, but I'm in need of some > advice. > > First off -- can somebody explain the common problem with the > monitors going dim? Can I fix it? (How?) Is there an internal > "intensity" pot that I can adjust to get more life out of the > monitor? It is just bright enough not to strain your eyes at > the highest brightness setting right now... (It's B&W) NeXT bought the monitors from Sony. Sony bought CRTs that had a limited cathode life. The cathodes have mostly expired by now. > Next, can anyone tell me why, after booting into single user mode, > and changing the root password with 'nu -m' I might still be > refused a login next time I boot? > > I was able to get in once yesterday, after which I tried this morning > and was refused. I booted to single user mode again -- looked at the > current password hash, changed the password again (the hash turned out > different, but I'm not sure that means much really, and could just be > different "salt"), booted again normally, and still couldn't get in. The password file "/etc/passwd" is not used any time that NetInfo is running, which is nearly all the time. A few minutes ago I posted a method to modify the NetInfo view of the root password, using nidump and niload. > > A) It's getting another password from somewhere and overwriting the > one I put in? (I hope not.. :) Yes. The password file that is actually used is stored inside the NetInfo database. > > B) Something's not starting right during boot right now, and it needs > this to log people into the system? (More likely, I think...) > > It does still want to connect to the network, and complains about not > being able to talk to several machines when it boots. I'm not sure > whether this would make a difference, or how I would convince it not to > do this. :) Any suggestions? More NetInfo stuff. You need to reset the database so that the computer does not know about its previous life. Look on the net for the NeXT FAQ. It will help a lot. First place I found using a Google search is < http://www.non.com/news.answers/NeXT-FAQ.html > carl -- carl lowenstein marine physical lab u.c. san diego clowenstein(a)ucsd.edu

24 years, 2 months

1
0
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Seeking Interest in Group Purchase, Avery Magtape Labels

by dquebbeman＠acm.org

Hey- Avery still lists labels for 9-track tapes, assuming that's what these are: Tape Reel High Speed Computer Labels 3-7/8" x 1-13/16", White, Dot Matrix, Removable, 5000 labels per box 04052 5000 Labels per Box $139.15 If there are just ten people on the list who'd have use for 500 labels, it's close to fifteen bucks per person. OTOH, is anyone sitting on a stash of them? I found a sheet with precisely three labels, and I've quite a few more tapes than that... -dq

24 years, 2 months

1
0
0 0

The Collector's Best Friend

by dquebbeman＠acm.org

> And thusly Douglas H. Quebbeman spake: > > > > > Nathan would like to find a nice retirement home for his AT&T Unix PC. > > > He's in Pittsburg, PA. Please contact him directly. > > > > > > : I'm looking for a good home for my AT&T 7300 Unix PC. Kinda sorry to see it > > > : go, but the wife seems adamant. Let me know if this is an acceptable donation. > > > > Behold the SWMBO: the ClassicCmp subscriber's Best Friend. > > > > ;) > > What's a SWMBO? Oh, 30 to 40 years of indentured servitude, if you're lucky... (SWMBO == She Who Must Be Obeyed... Wife for most of you, mother for a few) <tee hee>

24 years, 2 months

1
0
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Explain the NeXTStation "dim monitor" problem, etc...

by cdl＠proxima.ucsd.edu

> From: Dave McGuire <mcguire(a)neurotica.com> > Content-Transfer-Encoding: 7bit > Date: Tue, 16 Apr 2002 12:20:03 -0400 > To: classiccmp(a)classiccmp.org > Subject: Re: Explain the NeXTStation "dim monitor" problem, etc... > Sender: owner-classiccmp(a)classiccmp.org > > On April 16, Christopher Smith wrote: > > Next, can anyone tell me why, after booting into single user mode, > > and changing the root password with 'nu -m' I might still be > > refused a login next time I boot? > ... > > A) It's getting another password from somewhere and overwriting the > > one I put in? (I hope not.. :) > > It's been many years since I ran NeXTSTEP, so this might be > useless...but does "nu" modify the netinfo database? If not, well, > that might be the problem. The root password must be modified in such a way that Netinfo knows about it. One recipe for this is in the NeXT SysAdmin manual under the subject "Lost Root Password". The documentation is also online in /NextLibrary/Documentation/NextAdmin/15_Trouble.rtfd. The easiest way I know of to change the root password on NeXTstep is to boot as single-user. then: # cd /tmp # nidump passwd . > tempfile # vi tempfile # here delete the password field from the # between the pair of : first line (root) entry # niload passwd . < tempfile # halt Boot again, not as single-user. Root now has a null password. If you are an awk expert, you could combine the steps and not have the intermediate file. But it took me a few tries to get it right just now. So it's easier to use an editor. carl -- If you are an awk specialist, you could

24 years, 2 months

1
0
0 0

AT&T 7300 Unix PC in Pittsburg, PA

by dquebbeman＠acm.org

> Nathan would like to find a nice retirement home for his AT&T Unix PC. > He's in Pittsburg, PA. Please contact him directly. > > Reply-to: Nathan.Thompson(a)respironics.com > ---------- Forwarded message ---------- > Date: Tue, 16 Apr 2002 14:01:44 -0400 > From: "Thompson, Nathan" <Nathan.Thompson(a)respironics.com> > Subject: inquiry > > I'm looking for a good home for my AT&T 7300 Unix PC. Kinda sorry to see it > go, but the wife seems adamant. Let me know if this is an acceptable donation. Behold the SWMBO: the ClassicCmp subscriber's Best Friend. ;)

24 years, 2 months

4
3
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One-upsmanship (was: Secret Mac

by dquebbeman＠acm.org

> > > My computer's heavier than yours. > > new sig: My computer's got more blinking lights than yours. > My computer's slower than yours. My computer dims the neighborhood's lights when I turn it on... My computer has fewer transistors than yours... My computer has no transistors, just tubes... My computer's valves burn out faster than yours... My computer's got more gears than yours...

24 years, 2 months

1
0
0 0

TTL computing

by IVIE＠cc.usu.edu

Dwight Elvey said: > Looking at ideas for a minimal computer, did you see: > > http://www.tu-harburg.de/~setb0209/cpu/ http://eagle.eku.edu/faculty/styer/oisc.html has a description of a bunch of single-instruction machines. Take a look at the ones which require only byte moves and a memory-mapped program counter. Roger Ivie ivie(a)cc.usu.edu

24 years, 2 months

1
0
0 0

One-upsmanship (was: Secret Mac

by dwightk.elvey＠amd.com

>From: "Fred Cisin (XenoSoft)" <cisin(a)xenosoft.com> > >> > My computer's heavier than yours. >> new sig: My computer's got more blinking lights than yours. >My computer's slower than yours. > > Mine's a 4004. What do you use that is slower ( just because it runs windows doesn't mean the processor is slower). Dwight

24 years, 2 months

1
0
0 0

More 11/750 PSU Qs

by dwightk.elvey＠amd.com

>X-Server-Uuid: 1b77f47c-118c-11d5-bbc5-0002a5132c3d >X-Authentication-Warning: ns2.ezwind.net: majordom set sender to owner-classiccmp(a)classiccmp.org using -f >Date: Wed, 17 Apr 2002 09:45:56 -0700 >From: cdl(a)proxima.ucsd.edu >To: classiccmp(a)classiccmp.org >Subject: Re: More 11/750 PSU Qs >MIME-Version: 1.0 >X-WSS-ID: 10A36FAD144315-01-02 >Content-Transfer-Encoding: 7bit > >> From: ard(a)p850ug1.demon.co.uk (Tony Duell) >> Subject: Re: More 11/750 PSU Qs >> To: classiccmp(a)classiccmp.org >> Date: Tue, 16 Apr 2002 03:01:23 +0100 (BST) >> In-Reply-To: <20020415200927.52402.qmail(a)web10301.mail.yahoo.com> from "Ethan Dicks" at Apr 15, 2 01:09:27 pm >> Sender: owner-classiccmp(a)classiccmp.org >> Reply-To: classiccmp(a)classiccmp.org >> >> > > > > NO!. SMPSUs do not like being run in parallel (unless designed to be >> > > > > used like that). One PSU will end up attempting to supply all the >> > > > > current and the other PSUs may not like having voltages applied to >> > > > > their outputs. >> > > > >> > > > And once the first one drops dead, the next >> > > > most "powerful" one repeats the process. >> > > > Proof by "induction" left as an exercise :-) >> > > > >> > > *giggle* OK, ok, thought it was best to ask.... *laughs manically* >> > >> > Presumably, if one could a) tolerate the voltage drops and b) find massive >> > diodes (many amps for the intended application in an 11/750), it could be >> > done safely. Please feel free to correct me if I'm wrong. >> >> Well, that would prevent one PSU from supplying a voltage to the outputs >> of another (something that can really confuse the regulation circuitry!), >> but it won't help with the current distribution problem. The PSU who's >> output after the diode drop is the highest voltage will end up sourcing >> all the current. Not what you really want. > >Aren't there some power supplies that can be run in constant-current >or "current-limited" mode? I think I used to do that with a PDP8-E, >when the power drain of the add-in boards exceeded the original 1/2 Amp >per slot. A booster supply to provide more current. > > carl >-- > carl lowenstein marine physical lab u.c. san diego > clowenstein(a)ucsd.edu > Hi Carl Sure, I've use supplies that are designed to be used in parallel that would share current rather than having each supply run in current limit mode. They were set up in such a way that the voltage feedback was controlled by a master supply. The slave supplies were set to track to the voltage on the current sense resistor of the master supply only they took their feedback form input of their own current sense resistor. Only the master supply had voltage feedback from the load. Most supplies that have a high side current sense resistor can be modified to run this way. When the masters current went up, it would create a higher voltage on the sense resistor. This would cause the slaves to increase their voltage on their sense resitor, evening out the shared current. Dwight

24 years, 2 months

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Champaign trip (aka DEC Galore)

by csmith＠amdocs.com

> -----Original Message----- > From: pat(a)cart-server.purdueriots.com > On Wed, 17 Apr 2002, Christopher Smith wrote: > > > > -----Original Message----- > > > From: Doc [mailto:doc@mdrconsult.com] > You also need to add your connecting hosts to your /etc/X11/Xaccess > (or is it /etc/X11/xdm/Xaccess ?) config file, eg: a single "*" on the > command line will allow any host to connect. Did that too, but I will recheck it. Chris Christopher Smith, Perl Developer Amdocs - Champaign, IL /usr/bin/perl -e ' print((~"\x95\xc4\xe3"^"Just Another Perl Hacker.")."\x08!\n"); '

24 years, 2 months

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One-upsmanship (was: Secret Mac

by DAW＠yalepress3.unipress.yale.edu

> From: Fred Cisin (XenoSoft) > > > > My computer's heavier than yours. > > new sig: My computer's got more blinking lights than yours. > My computer's slower than yours. > My computer is uglier than yours... Oop, hey, wait a minute... -- --- David A Woyciesjes --- C & IS Support Specialist --- Yale University Press --- mailto:david.woyciesjes@yale.edu --- (203) 432-0953 --- ICQ # - 905818 Mac OS X 10.1.2 - Darwin Kernel Version 5.2: Fri Dec 7 21:39:35 PST 2001 Running since 01/22/2002 without a crash

24 years, 2 months

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TTL computing

by dwightk.elvey＠amd.com

HI Tony Looking at ideas for a minimal computer, did you see: http://www.tu-harburg.de/~setb0209/cpu/ I've just subscribed again to the list so I'm not sure if this pointer has come up on this thread. Dwight PS Tony: I tried sending you a message directly but I'm not sure it made it, on another subject.

24 years, 2 months

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Assorted goodies & TK Question

by cdl＠proxima.ucsd.edu

> Date: Mon, 15 Apr 2002 22:51:16 -0500 (EST) > From: <pat(a)cart-server.purdueriots.com> > X-X-Sender: <pat(a)cart-server.ecn.purdue.edu> > To: <classiccmp(a)classiccmp.org> > Subject: Re: Assorted goodies & TK Question > In-Reply-To: <200204160322.g3G3Mx621685(a)shell1.aracnet.com> > Sender: owner-classiccmp(a)classiccmp.org > Reply-To: classiccmp(a)classiccmp.org > > On Mon, 15 Apr 2002, Zane H. Healy wrote: > > > > > Also, how do I get the disk out of an RRD40 without a computer attached? > > > > Um, unless you've got the 'clear sleave', I don't think you're going to get > > the disk out without demolishing the drive! As long as that's the drive I'm > > thinking of it uses a funky 'pincer' holder for the CD, with a clear > > 'sleave' around it to make up the 'caddy'. You stick the caddy in the drive > > and pull the 'sleave' back out. To remove the CD, you stick the 'sleave' in > > and pull out the whole caddy. (hopefully that makes sense) > > How easy is it to take apart without killing the drive? Or can I make a > 'clear sleve' very easily out of a couple of pieces of plastic? > The peculiar caddy comes from Philips, and was also used in some videodisk players. My local Gateway Electronics store has a lot of junk related to the Philips players, including a bunch of caddies. Or at least they had them last time I was there, perhaps a month ago. Maybe there is some similar store near where you are. carl -- carl lowenstein marine physical lab u.c. san diego clowenstein(a)ucsd.edu

24 years, 2 months

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Champaign trip (aka DEC Galore)

by csmith＠amdocs.com

> -----Original Message----- > From: Doc [mailto:doc@mdrconsult.com] > Silly question, but did you restart gdm? > Every ime I've set up remote desktops on a GDM server, It > Just Worked. Yes, lots ;) Christopher Smith, Perl Developer Amdocs - Champaign, IL /usr/bin/perl -e ' print((~"\x95\xc4\xe3"^"Just Another Perl Hacker.")."\x08!\n"); '

24 years, 2 months

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More 11/750 PSU Qs

by cdl＠proxima.ucsd.edu

> From: ard(a)p850ug1.demon.co.uk (Tony Duell) > Subject: Re: More 11/750 PSU Qs > To: classiccmp(a)classiccmp.org > Date: Tue, 16 Apr 2002 03:01:23 +0100 (BST) > In-Reply-To: <20020415200927.52402.qmail(a)web10301.mail.yahoo.com> from "Ethan Dicks" at Apr 15, 2 01:09:27 pm > Sender: owner-classiccmp(a)classiccmp.org > Reply-To: classiccmp(a)classiccmp.org > > > > > > NO!. SMPSUs do not like being run in parallel (unless designed to be > > > > > used like that). One PSU will end up attempting to supply all the > > > > > current and the other PSUs may not like having voltages applied to > > > > > their outputs. > > > > > > > > And once the first one drops dead, the next > > > > most "powerful" one repeats the process. > > > > Proof by "induction" left as an exercise :-) > > > > > > > *giggle* OK, ok, thought it was best to ask.... *laughs manically* > > > > Presumably, if one could a) tolerate the voltage drops and b) find massive > > diodes (many amps for the intended application in an 11/750), it could be > > done safely. Please feel free to correct me if I'm wrong. > > Well, that would prevent one PSU from supplying a voltage to the outputs > of another (something that can really confuse the regulation circuitry!), > but it won't help with the current distribution problem. The PSU who's > output after the diode drop is the highest voltage will end up sourcing > all the current. Not what you really want. Aren't there some power supplies that can be run in constant-current or "current-limited" mode? I think I used to do that with a PDP8-E, when the power drain of the add-in boards exceeded the original 1/2 Amp per slot. A booster supply to provide more current. carl -- carl lowenstein marine physical lab u.c. san diego clowenstein(a)ucsd.edu

24 years, 2 months

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Champaign trip (aka DEC Galore)

by csmith＠amdocs.com

> -----Original Message----- > From: Doc [mailto:doc@mdrconsult.com] > [xdmcp] > Enable=1 Did that -- no dice. I haven't gotten much further. I hear that you can put a Port=177 (is that the number?) in there to make sure it uses the right port, and I haven't done that yet. Chris Christopher Smith, Perl Developer Amdocs - Champaign, IL /usr/bin/perl -e ' print((~"\x95\xc4\xe3"^"Just Another Perl Hacker.")."\x08!\n"); '

24 years, 2 months

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It's alive!

by vcf＠siconic.com

We've managed to get the Apple-1 being auctioned working. We can enter commands into the monitor and get expected responses. We're going to get a cassette drive hooked up to it and attempt to load BASIC next. -- Sellam Ismail Vintage Computer Festival ------------------------------------------------------------------------------ International Man of Intrigue and Danger http://www.vintage.org * Old computing resources for business and academia at www.VintageTech.com *

24 years, 2 months

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OT Letting it go (was Re: The CommodoreOne is near!)

by mcguire＠neurotica.com

On April 17, Christopher Smith wrote: > > That's because we want to be *right.* It took me a long time > > to learn that > > I'd rather be happy than right. > > I'd rather be corrected than right. ;) No matter how much it > bruises the ego, it generally saves lots of time and energy > later. And you can learn something in the process! -Dave -- Dave McGuire "Mmmm. Big." St. Petersburg, FL -Den

24 years, 2 months

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NeXTStation: How to fix NetInfo

by csmith＠amdocs.com

Ok, R. -- chime in here any time ;) Now that I can see the NeXTStation's display better, I've booted it again, and changed the local password with 'passwd'. That got me in again. It seems that some netinfo stuff is dying on bootup. Lots of the NeXTAdmin apps will complain about not being able to contact the NetInfo server and die. The NetInfo server, as far as I can tell is nibindd, is that right? What is lookupd? It starts right after it, and seems to possibly have something to do with NetInfo too, but I can't tell what. Anyway, lookupd likes to exit without doing much, and nibindd seems to be dumping core, which I assume isn't good at all ;) ... so how does one go about straightening this mess out? Chris Christopher Smith, Perl Developer Amdocs - Champaign, IL /usr/bin/perl -e ' print((~"\x95\xc4\xe3"^"Just Another Perl Hacker.")."\x08!\n"); '

24 years, 2 months

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Emulex MD21

by dquebbeman＠acm.org

> Rats, I wanted to use an Emulex MD21 from a Sun external SXSI box to hook my > PDP11s Fuji M2246E ESDI drive (that connects to the QBUS via an Emulex QD21) > upto a PC to do an image dump. > > The MD21 works OK with a Sun drive (a Micropolis model 1558) & the PC can > verify each block on that, but with the Fuji M2246E hooked up, I get > "unexpected SCSI command failure" from the Adaptec AHA1540CF BIOS when trying > to verify the disk - > host adapter status : 00h - no host adaptor error > target status : 02h - check condition > sense key : 02h - not ready > +sense code : : 22h > +sense code qualifier : 00h > > mean anything to anyone? The Fuji 2246E is working happily in the PDP11/83 so > I don't believe the drive is faulty (yet!) > > I noticed the MS21 announce itself to the SCSI controller as an "Emulex > MD21/S2". I wonder if there is specific Sun firmware in it to talk to > only Sun approved ESDI drives?... Hmmm this sounds a little familiar, I've got a Micropolis drive at home that's got an Emulex rider board, it may be the same setup, although from a Prime, not a Sun... I'll try to go home at lunch and check... -dq

24 years, 2 months

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OT Letting it go (was Re: The CommodoreOne is near!)

by csmith＠amdocs.com

> -----Original Message----- > From: Glen Goodwin [mailto:acme_ent@bellsouth.net] > That's because we want to be *right.* It took me a long time > to learn that > I'd rather be happy than right. I'd rather be corrected than right. ;) No matter how much it bruises the ego, it generally saves lots of time and energy later. Chris Christopher Smith, Perl Developer Amdocs - Champaign, IL /usr/bin/perl -e ' print((~"\x95\xc4\xe3"^"Just Another Perl Hacker.")."\x08!\n"); '

24 years, 2 months

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OT Women & computers (was Re: The CommodoreOne is near!)

by csmith＠amdocs.com

> -----Original Message----- > From: Glen Goodwin [mailto:acme_ent@bellsouth.net] > Woman: Don't give me that crap! Women don't know anything about > computers! > This sort of thing happened almost every day. I don't blame > Deb at all for > leaving the industry. Of course, we're in Florida, so you > have to expect > some redneck attitudes, but from a *woman*?? Well, I guess the whole point of this is that women in general have every bit of ability that men in general have. I suppose that includes the "ability" to be stupid. Chris Christopher Smith, Perl Developer Amdocs - Champaign, IL /usr/bin/perl -e ' print((~"\x95\xc4\xe3"^"Just Another Perl Hacker.")."\x08!\n"); '

24 years, 2 months

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Explain the NeXTStation "dim monitor" problem, etc...

by csmith＠amdocs.com

> -----Original Message----- > From: ard(a)p850ug1.demon.co.uk [mailto:ard@p850ug1.demon.co.uk] > Look for a pot marked 'screen' or 'g2' or something like > that. It's often > on the flyback transformer in small monitors, could be elsewhere on > larger/high end ones. For the record, it's "white level" on my monitor. :) It's also very hard to get at without a pot tweaker (have to get some of those one day...) > Turning this up might help. The cure might not be permanent > (in fact it > might casuse the CRT to fail sooner), but it's worth a try. We'll see -- it's ok for now. > Do take care when working inside a monitor. There are some nasty high > voltages in there. Although IMHO the CRT electrode voltages are less > likely to kill you than mains (simply because the CRT > electrode supplies > can't source much current), a shock from one of them can be > nasty, and > might cause you to jerk back and cut yourself, or break the CRT, or... Indeed. I know, but thanks for the warning anyway. FWIW, the Megapixel monitors are completely shielded even once you open the plastic. There's a cutout in the shielding for each pot, and looking in with a flashlight, I can't see much of a way to contact anything except the pots. In other words, this is probably pretty safe on one of these. > If you've not been inside a monitor or TV before, then there's a > reasonable set of safety precautions in the sci.electronics.repair FAQ I might look at that anyway. Chris Christopher Smith, Perl Developer Amdocs - Champaign, IL /usr/bin/perl -e ' print((~"\x95\xc4\xe3"^"Just Another Perl Hacker.")."\x08!\n"); '

24 years, 2 months

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OT email response format (was Re: TTL computing)

by csmith＠amdocs.com

> -----Original Message----- > From: Doc [mailto:doc@mdrconsult.com] > On Tue, 16 Apr 2002, Christopher Smith wrote: > > they really hate for people to put any software on their system > > (typical windows-using mindset, but let's not get into that :), > Umm, I had the misfortune to run a Windows9x network for a couple of > years. 30+ machines and 50+ belligerently clueless > archeologist users. > If I could have stopped those idiots from installing *every* browser > plugin that came along and $3 cut-out software, I'd have had half the > repairs to do. > That _is_ a Windows-admin mindset, borne of much painful experience. I was wondering whether I would get this reply, and I have just one thing to say to it: You're absolutely right. I wouldn't trust people to *breathe* on a windows machine, personally, because windows can't handle it. It was the "windows using" part that I really dislike. The mindset is just a symptom. ;) Now if you'd like to talk about people who think that this is a natural way for a computer to behave, that's something else entirely. Ok, that was at least two things, I guess... Chris Christopher Smith, Perl Developer Amdocs - Champaign, IL /usr/bin/perl -e ' print((~"\x95\xc4\xe3"^"Just Another Perl Hacker.")."\x08!\n"); '

24 years, 2 months

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UPS was Re: Need Burroughs Tape Spec's

by Robert_Feldman＠jdedwards.com

Maybe just a matter of terms, but you want a foam that will compress some, but will not _permanently deform_. Some spray foams will compress, but will not rebound, leaving lots of room for parts to rattle around in. Bob -----Original Message----- From: Sridhar the POWERful [mailto:vance@ikickass.org] Sent: Wednesday, April 17, 2002 1:29 AM To: Chad Fernandez Cc: classiccmp(a)classiccmp.org Subject: Re: UPS was Re: Need Burroughs Tape Spec's <snip> Actually, you want noncompressible foam so that it doesn't get compressed, making empty space into which your equipment can fall. The main reason why newspaper is a bad packing material. You want something that will absorb shock *without* compressing. ^^^^^^^^^^^ Peace... Sridhar <snip>

24 years, 2 months

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UPS was Re: Need Burroughs Tape Spec's

by ajp166＠bellatlantic.net

UPS... Another data point. We build RTD and RTD based assemblies, One time two probes were shipped to a vendor and we get an RMA request... Seems the probes were BENT. Now to appreciate that you have to understand these were .25" od probes (in a 316L sheath) and that inside a 1"od inconel thermowell (1"od .25" id) and they were BENT. UPS denied any culpability, they also paid. Allison

24 years, 2 months

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Explain the NeXTStation "dim monitor" problem, etc...

by ajp166＠bellatlantic.net

From: jpero(a)sympatico.ca <jpero(a)sympatico.ca> >I wondered whom is right? > >cathode oxide or >heater coating? The heater looses emissivity. Also the oxide from ION bombardment and local heating from the electron beam gets burned. In some systems the HV PS tends to fade over time as well! I have a bunch of Acer tubes that did the latter when run at 800x600. Allison

24 years, 2 months

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OT Letting it go (was Re: The CommodoreOne is near!)

by dquebbeman＠acm.org

> > From: Christopher Smith <csmith(a)amdocs.com> > > > > From: John Chris Wren [mailto:jcwren@jcwren.com] > > > > > But then, one thing I have noticed about the list, besides being an > > > excellent wealth of information and intelligent people, is that some don't > > > know when to let something end. > > > > You can count me in that category. I wonder whether it's typical > > of the kind of person you'd find on this list? > > > > As a general observation, technical types tend to push things > > further than most people appreciate in several cases. > > That's because we want to be *right.* It took me a long time to learn that > I'd rather be happy than right. They're not the same thing???? ;)

24 years, 2 months

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OT Women & computers (was Re: The CommodoreOne is near!)

by acme_ent＠bellsouth.net

> From: John Chris Wren <jcwren(a)jcwren.com> > Jesus. And people wonder why women have a hard time in the industry. No kidding! My wife Debbie created our computer store/repair shop, but she ultimately quit because of the disrespect she received from customers. She has ten years experience with telecommunications gear, and Wintel boxes are not much of a challenge for her. Real conversation: Woman enters the store carrying a PC. Woman: "I need help with my computer. Can he help me?" (Points to me, busy swapping out a hard drive.) Debbie: Well, *he's* busy right now. How may I help you? Woman: I need help with my computer. When will he be available? Debbie: I don't know, but *I* can help you right now. Woman: You don't understand, my computer is broken and I need it fixed. Debbie: I can fix your PC if you will just explain the problem to me. Woman: Don't give me that crap! Women don't know anything about computers! This sort of thing happened almost every day. I don't blame Deb at all for leaving the industry. Of course, we're in Florida, so you have to expect some redneck attitudes, but from a *woman*?? Glen 0/0

24 years, 2 months

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Does Anyone Have A

by Robert_Feldman＠jdedwards.com

Jonathan Engdahl mentioned the TI chip in the Simon game, which reminds me I have some TI TMS34010 chips and one TMS34010 User's Guide that I don' need. The chips are on B+H scanner (?) 3-board stacks with graphic RAM and SCSI and printer ports, and are a bit heavy. I can pull the TMS chip if anyone wants just that. Free for postage. Reply to robert_feldman(at)jdedwards.com.

24 years, 2 months

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