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What showed up at TRW?

by Innfogra＠aol.com

What showed up at the swap meet? Anyone see anything interesting? Paxton Astoria, Oregon USA

24 years

Problems with Ersatz-11 and CDROM

by jhfinepw4z＠compsys.to

I realize that there are probably very few individuals interested in this topic, however here goes. I am running E11 (Ersatz-11) under Windows 98 so that I can run RT-11. It works great in almost all respects and I can even live with this one minor problem. However, perhaps someone might be able to suggest what needs to be fixed. I have just acquired a CD-RW and been successful is making copies of my files to a CD-R and over the past week a few test files to a CD-Erasable. I am using "Nero Burning" as the software which "writes" to the CD and while I am a bit disappointed that the write speed to the erasables is only 2x as opposed to 16x for the WORM media, I can easily live with that and it is not a problem. I have also discovered how to "DUMP" to the screen any of the 2048 byte blocks on the CD - in hex of course. And finally, I discovered how to copy a single file to the CD starting at block zero of the CD media - or at least I have done so with the erasable media and I hope it can be done with the WORM media as well. The only thing I have not found out as yet is how to copy all of the sectors written to a CD back to a file on the hard drive so that more than one copy can be made to more blank CDs. I doubt if that will be a problem - I just have not even bothered as yet to try. When I copy a single file to the CD using Nero and the "File" menu o File o Burn Image o Open o Foreign Image Settings - Block Mode 1 - Block Size (2048 Bytes) - Image Header (0 Bytes) - Image Trailer (0 Bytes) o OK o Ignore - during this test, the Image file is not a multiple of 2048 bytes o Write where each "o" indicates another menu sub-level. Nero does correctly write the file to the CD as far as I can tell - except perhaps for the last few blocks since the size of the image file was not a multiple of 2048 bytes. Using C:foobar.DSK as the Image File I wrote to the CD, then using Nero and "Recorder"/"View Track", I can look at each 2048 byte block the CD to verify that the Image File Foobar.DSK was written to the CD and under E11 I can give the commands: MOUNT DU0: CDROME:/RO MOUNT DU1: C:foobar.DSK/RO Then under RT-11, I can also give the commands DIFFERENCES/BINARY/DEVICE DU0: DU1:/START:64./END:last-block-3 which results in a perfect compare. Under RT-11, I can also do a DUMP/TERM DU1:/ONLY:any block including block numbers between zero and 63. DUMP/TERM DU0:/ONLY:only block numbers 64. or greater. NOW!! Here is my problem and the question. Why can't E11 read blocks zero to 63. on the CD? I can see them under Nero and DUMP these blocks to the monitor under Nero. I could easily modify the MSCP device driver for RT-11 and automatically add 64. to every block number before I try to read it from the CD, but that would really mean a new device driver (CDX.SYS seems like a good name). I would also need to decide if that should be just for partition zero (my preference) or all the 20 or even 21 partitions on the CD. Or perhaps, someone has already discovered the answer why Nero can read those blocks under Windows 98, but E11 can't. By the way, one other solution is to just not use partition zero under RT-11 under E11 under W95/W98. Before I could burn my own CDs, that was the way that Tim Shoppa set up the RT-11 Freeware CD in any case. However, now that I have been able to actually read blocks zero through 63. from the CD under Nero, it seems too soon to give up on E11. I suspect that a partial answer may be that Nero uses W95/W98 operating system calls that are not used by E11 which is essentially a DOS program. If true, that obstacle might be overcome if the modification to E11 is simple enough. PLEASE!!! Can anyone suggest what the difficulty might be? Sincerely yours, Jerome Fine -- If you attempted to send a reply and the original e-mail address has been discontinued due a high volume of junk e-mail, then the semi-permanent e-mail address can be obtained by replacing the four characters preceding the 'at' with the four digits of the current year.

24 years

The Future End of Classic Computing

by philpem＠btinternet.com

Jeffrey Sharp <lists(a)subatomix.com> said: > On Friday, March 29, 2002, Douglas H. Quebbeman wrote: > > http://www.wired.com/news/politics/0,1283,51274,00.html > Suppose it *is* that bad. What are some good nations to immigrate to? Well, I can imagine how the USA is going to end up... - No more Linux coders from the USA - that would be a pretty big problem given that a great deal of stuff for Linux was coded by Americans. - No more home movies - Your Uncle Fred can't just send you his video of the kids playing football - your VCR would refuse to play it - No more DVDROM drives for computers (or CDROMs, or floppy drives, or RAM, hard drives, etc) - could conceivably be used for infringement. - Computer hoarders - people who bought loads of pre-SSSCA Dell/Compaq/Toshiba/noname PCs and then started keeping them to themselves. - Massive fines for nearly any computer programmer Need I go on? I think I'm going to stay in the UK for the time being. Otherwise, I'm probably going to move to an island off the coast of India... Catch is my PC would probably hate me for it... Later. -- Phil. philpem(a)bigfoot.com http://www.philpem.btinternet.co.uk/

24 years

ZX81 and 6116

by acme_ent＠bellsouth.net

> From: Tony Duell <ard(a)p850ug1.demon.co.uk> > The first part is a false conclusion. It's safe to say that L2 is needed > for a single-chip _2K_ machine (using a 6116 or similar), which is what > we've been saying all along. For a single-chip 1K machine (using a > 4118), you use L1. You've not seen one of those boards, so you've not > seen a machine with L1 fitted. Granted. How about: No jumper needed for dual 2114s L2 needed for 2K boards L1 needed for single-chip 1K boards Okay? Glen 0/0

24 years

CBDTPA update

by jbdigriz＠dragonsweb.org

According to Wired, Sen. Leahy, chairman of the Senate Judiciary Committee, has put the kibosh on the CBDTPA for now. http://www.wired.com/news/politics/0,1283,51425,00.html The article does mention that Rep. Adam Schiff (D.-California) was drafting similiar legislation for introduction in the House. jbdigriz

24 years

FYI: Yahoo Mail Account info Alert. (fwd)

by doc＠mdrconsult.com

I know a lot of y'all use Yahoo Mail.... FYI to those who use Yahoo Mail. March 29 - Tired of spam you're getting at your free Yahoo! e-mail account? Get ready for more. Tucked inside a privacy policy change the company made this week was notice that more Yahoo! e-mail marketing offers were coming "even if users had formerly indicated they were unwanted. YAHOO! GRANTED ITSELF PERMISSION to spam by creating a new "marketing preferences" page that lets users pick "yes or no" to specific categories of marketing pitches. The problem is, Yahoo! set every users' option to "yes" - even if long ago, they indicated they never wanted any Yahoo! spam. Users who don't want marketing offers from Yahoo have 60 days to do the following: Visit the user profile preferences page at http://edit.my.yahoo.com/config/eval_profile select "Edit your marketing preferences" from within the Member Information section; and individually change selections in a series of marketing categories from "yes" to "no." In e-mail marketing lingo, the process is known as "opt-out." But even performing that slightly cumbersome operation is no guarantee that Yahoo! marketing offers won't come, since the firm reserves the right to add marketing categories at any time. "I'd suggest re-checking periodically," writes another mailing list poster.

24 years

PowerMac 7100/66av

by torquil＠rockbridge.net

Hi, I have a PowerMac 7100/66av (almost 10 years old now) and i broke like half the keys on the keyboard and the mouse, i was wondering if there is any way to do one of the following to get it up without them. Make a disk of some sort which runs and sets up VNC and the network? Get a MkLinux disk that sets up the network and sshd? thanks, torquil

24 years

"New" PDP-8

by mcguire＠neurotica.com

On March 30, Torquil MacCorkle III wrote: > I am VERY interested in doing something like this. I had been looking at > building a PIC web server but that wouldnt be as fun as a whole computer. I > was wondering if this book is available online, ebay doesnt seem to have it? That book is pretty old...you might try http://www.bookfinder.com. I don't think it's available online. -Dave -- Dave McGuire "...it's leaving me this unpleasant, St. Petersburg, FL damp feeling on my shorts..." -Sridhar

24 years

"New" PDP-8

by mcguire＠neurotica.com

On March 30, Torquil MacCorkle III wrote: > I am interested in building a computer like this, but this seems a bit > too much for me to tackle. Are there any other Classiccomputers one could > build which are far simpler and don't involve 600 wires and stuff? I have a great old book by Steve Ciarcia entitled "Build Your Own Z80 Computer". In it, he details the design and construction a very simple, yet effective design for which most componenets are still available. The construction of such a computer can be lots of fun, and anyone is sure to learn a great deal about computing in general and digital electronics in particular. If you have any interest at all in doing this, I'd suggest pursuing it with vigor. You'll be glad you did! -Dave -- Dave McGuire "...it's leaving me this unpleasant, St. Petersburg, FL damp feeling on my shorts..." -Sridhar

24 years

The Future End of Classic Computing

by ajp166＠bellatlantic.net

From: liste(a)artware.qc.ca <liste(a)artware.qc.ca> >> That and the digital stuff has spurs off the bandwidth in all directions >> with it's wideband noise. Damn near ruined parts of 6M ham bad with >> the crud they radiate. > >Have you seen this as a fact? Slashdot had an article in the last while >(can't find it) about someone who'd put a spectrum analyser next to his >wireless card and found that next to nothing was leaking into other bands. Then he wasn't looking in the right places. Intermod at the site, many transmitters, CH2,4,5,7 at the same general site plus various other services and a pot load of UHF sources. Besides I know it's from there as my beam when pointed that way spots spurs every 150kHz and 60KHz. Many of the local 6m set have been trying to spot the specific source right down to the specific transmitter. Makes weak signal stuff pretty difficult. Allison

24 years

The Future End of Classic Computing

by ajp166＠bellatlantic.net

From: Charles E. Fox <foxvideo(a)wincom.net> >> >>They are already doing a pretty good job of screwing up the broadcast >>television industry in the US, with HDTV that no one can afford, and >>digital tv standards that only work in a strong signal area. > > Regards That and the digital stuff has spurs off the bandwidth in all directions with it's wideband noise. Damn near ruined parts of 6M ham bad with the crud they radiate. Allison

24 years

"New" PDP-8

by mcguire＠neurotica.com

On March 30, Chuck Dickman wrote: > Another technique that I have found useful is tack soldering wire-wrap > wire to solder pads on pad per hole perfboard. The Kynar insulation is > heat resistant and does not shrink or burn. I usually install solder > tail sockets and then follow with point to point wiring. Multiple wires > per pad require some care in soldering (the wire has spring and tends to > pull away as the solder melts). Quite reliable and efficient for someone > skilled with a soldering iron. I've used this technique for small stuff. It works well. I haven't tried anything large with it mainly due to lack of opportunity, but I'm sure I will at some point. > For an example: > http://www.chd.dyndns.org/sbc/68k_back_half.jpg > > The most dense area is about 3/4 inch thick. Hey, that looks like a really cool SBC! -Dave -- Dave McGuire "...it's leaving me this unpleasant, St. Petersburg, FL damp feeling on my shorts..." -Sridhar

24 years

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

by mcguire＠neurotica.com

On March 30, Tony Duell wrote: > > All that person needs to do is get a soldering iron, solder, some bits > > Do uorself a favour and buy a good temperature-controlled soldering > station. It will make life a lot easier and do less damage. I am used to > a Weller TCP iron (this is a very common one, at least in the UK). A few > years back I attempted to use a friend's cheap non-controller iron, and I > found I simply couldn't work on multi-layer PCBs with it. I went back to > the lab where I was emplyed at the time to borrow a Weller TCP to do the > repair... I strongly second this! A cheap crap soldering iron (like the $7 specials that I used to by at Radio Shack when I was a kid) will produce crap results for pretty much ANY person regardless of skill or experience. I used a Weller TCP like Tony's for many years; it was wonderful in every way. About 6-8 months ago I picked up a Metcal iron (an SP-PW1-10), which is even a huge step above said venerable Weller TCP...I recommend them very highly. Try one and you'll understand what I mean. :-) It really doesn't pay to use cheap soldering irons. You'll save a few bucks, but it'll cost you parts, boards, fingers, and the fun of soldering! -Dave -- Dave McGuire "...it's leaving me this unpleasant, St. Petersburg, FL damp feeling on my shorts..." -Sridhar

24 years

"New" PDP-8

by mcguire＠neurotica.com

On March 30, brian wheeler wrote: > > For 500 connections or more, I'd a brung in my electric wirewrap > > GUN. > > A few years ago I took a hardware class at IU and we built a PDP-8 using > PLAs, a bit of static ram, a few 74LS chips, and a ton of wire > wrapping. There were about 600 wires in all, but luckily it was split > across the whole semester, so it wasn't too dramatic. It was pretty In 1985-1987 I worked at Princeton University (I think I may have mentioned this at one point) on the Navier-Stokes Supercomputer project at the Moody Fluid Dynamics Laboratory. I was responsible for the Switching Board, a big board full of TTL that functioned as a big crossbar switch between processors and memory planes. The boards in the NSC machine were Unibus form-factor; we used the OEM version of the PDP11/24 chassis which came with no labels and no backplane wiring. The Switching Board was wall-to-wall 74LS series chips...mostly 74LS244s...packed as closely as possible. If memory serves they were 14,000 wires per board or so. Doing that without a gun would have been...well, impossible. It was tedious, but I enjoyed it anyway. What was especially enjoyable was seeing the first test program running through vectors, outperforming a uniprocessor Cray XMP on $2K worth of hardware in a desktop chassis. :) -Dave -- Dave McGuire "...it's leaving me this unpleasant, St. Petersburg, FL damp feeling on my shorts..." -Sridhar

24 years

WTB: NEEDED: Tandy/Bondwell parts!

by rmenti＠execpc.com

Does any one know disk info since I get a mismatch on boot. Is a 286 with DOS and want to get stuff off the drive if I can pick the correct config stuff. Randy Milwaukee, WI

24 years

"New" PDP-8

by mcguire＠neurotica.com

On March 30, jeff.kaneko(a)juno.com wrote: > Well yes, as a matter of fact, there are still many applications > where WW is really the best way to go. As a good example, bed-of- > nails test fixtures are typically wirewrapped. At the last > company where I was employed, I watched a re-work girl wire up > such a fixture (maybe 300 points or so) *BY HAND*, using a > manual wirewrap tool. A "re-work girl" Oh MAN where can I find one of those!! -Dave -- Dave McGuire "...it's leaving me this unpleasant, St. Petersburg, FL damp feeling on my shorts..." -Sridhar

24 years

PowerMac 7100/66av

by mythtech＠mac.com

>Oops I forgot to mention that the ethernet transceiver is also likely >broken. > >You can't get those for $5 too can you? :) No, you might have to actually go as high as $10 for one of those. -chris <http://www.mythtech.net>

24 years

Call for Papers for Microscopy Book Series

by micro＠formatex.org

Dear colleague In the very next future, FORMATEX, a technological organization located in Badajoz (Spain), will edit a series of books on the science and technology of Microscopy, as well as on educational applications. This letter is to invite you to take part of this edition, since we are searching for contributors >from all microscopy technique and applications. Information on the Call for Paper for this edition is available at http://www.formatex.org/micro2002/callforpaper.htm The book will be edited in a citeable form (ISBN) and a copy of the book plus 25 reprints will be sent by mail to the corresponding author. If you are interested in contributing to this edition or have any question, please contact us at micro(a)formatex.org, or directly to the editor: A.Mendez Vilas Physics Department University of Extremadura Avda. de Elvas s/n 06071 Badajoz SPAIN E-mail: amvilas(a)unex.es Regards J.A. Mesa Gonzalez FORMATEX

24 years

PowerMac 7100/66av

by Innfogra＠aol.com

In a message dated 3/30/02 11:33:50 AM Pacific Standard Time, torquil(a)rockbridge.net writes: > Oops I forgot to mention that the ethernet transceiver is also likely > broken. > > You can't get those for $5 too can you? :) > > I saw one in the Lincoln City, Oregon, Goodwill for $7 two days ago. Paxton Astoria, OR

24 years

"New" PDP-8

by mcguire＠neurotica.com

On March 30, Loboyko Steve wrote: > Well, no, it isn't. Because the cost of getting a PCB > made is less than the cost of a good electronics > technician, I think it started to die in the late > 80's. And, of course, its practically impossible to WW > BGA chips, etc. Not commonly used, or not the "latest greatest thing"? I know of several small outfits that do lots of wire-wrapping. And I mean *lots*. -Dave -- Dave McGuire "...it's leaving me this unpleasant, St. Petersburg, FL damp feeling on my shorts..." -Sridhar

24 years

ZX-81 Question

by acme_ent＠bellsouth.net

> From: John Chris Wren <jcwren(a)jcwren.com> > Assuming I wanted to get a ZX-81, what would I want? Take a stable ZX81 or TS1000 and pull off the composite video to feed a monitor. Add a decent keyboard and bump the RAM to 64KB. You'll want a printer and a good cassette recorder, too. If you don't plan to add any hardware which requires a ROM, then you might want to add NVRAM to the unoccupied 8-16K address space. A Hunter board is perfect for this, if you can find one. If you require hardware which could benefit from having code in ROM, then the 8-16K space can be used by an add-on ROM. > And are there any > really good 'net resources for the ZX-81? Yes! The ZX-TEAM home page is a good place to start: http://home.t-online.de/home/p.liebert/zx-team.htm Kai Fischer's ZX96 page shows an example of how far you can take this machine: http://home.freiepresse.de/befis/zx96_e.htm Zebra Systems in NYC still sells unbuilt kits, but they are expensive: http://www.zebrasystems.com/zebrasystems/zx81/index.html For software, visit the University of Trondheim archive: ftp://ftp.nvg.unit.no/pub/sinclair/zx81/ You can download the software and transfer it from a DOS-based PC to the ZX81 using ZXTAPE and a modified PC-type parallel printer cable. One program which is indispensable if FASTLOAD, which allows 4800 baud cassette I/O, as opposed to the native 300 baud. This means you can LOAD a 16 KB program from cassette in < 40 seconds instead of 5 minutes. The possibilities really are endless. My main ZX81 has an 80 MB hard drive hung off it, which I will never come close to outgrowing. Let me know if you have more questions . . . Glen 0/0

24 years

"New" PDP-8

by ajp166＠bellatlantic.net

Steve, Many years ago I did the TU58 emulator that Bob designed. An excellent and useful tool. FYI: I also ahve a 6100 (intersil board with mods) and a 6120 based design. The old PDP-8 instruction set is most interesting and loads of fun to write code with. Allison -----Original Message----- From: Loboyko Steve <sloboyko(a)yahoo.com> To: classiccmp(a)classiccmp.org <classiccmp(a)classiccmp.org> Date: Saturday, March 30, 2002 1:02 AM Subject: "New" PDP-8 >I just completed the very nasty job of downloading the >operating system and a few BASIC programs to my "new" >PDP8, which is built from Robert Armstrong's design. >It only draws about 5 watts, so it isn't a problem to >keep on all the time, unlike others that people on >this list might own! > >I made a comment to Mr.Armstrong that I removed the >IBM logo from the drive because I didn't think it >would work correctly with a DEC design. Strangely, >this actually came true to a degree; I had a slow PPI >chip that didn't get data from the drive quickly >enough. I tried to save a dollar buying an 82C55 >instead of an 82C55-5. > >Pics, if interested, are at: > > >sloboyko.home.mindspring.com/pdp8e.htm > >I wrote up this web page as a brief synopsis of >material I found on the Internet; some may be true and >some may not be true. I would appreciate comments, >etc., from the experts. > >I would also appeciate any pointers to interesting >software, especially large BASIC programs, disk based >FOCAL (if this exists?), and so on. > >The logos on the case look OK, but if anyone a broken >piece of case with a Digital or PDP8 logo on it, I'd >really like to have it. > > > > >__________________________________________________ >Do You Yahoo!? >Yahoo! Greetings - send holiday greetings for Easter, Passover >http://greetings.yahoo.com/

24 years

Fwd: Re: Is anyone interested in military Compupro s-100 computers?

by kyrrin＠bluefeathertech.com

Hi, gang, I received an E-mail this morning from a fellow who's looking to offload a whole bunch of older S-100 stuff for cost-of-shipping only. Said E-mail is attached below. His area code is 914, which I seem to recall is somewhere on the east coast. Since I'm no longer in the computer arena, outside of what I keep around to maintain my 'net presence, I figured someone on the list could give the stuff a good home. Enjoy! *********** BEGIN FORWARDED MESSAGE *********** On 30-Mar-02 at 11:35 Joe Soll, CSW, DAPA <cera(a)idt.net> wrote: >I have a large collection of S-100 computers (mostly Compupro) and >peripherals which I want to give to a collector for the cost of shipping >only. > >The list of equipment is at: >http://www.adoptioncrossroads.org/antiqcmp.html > >It's your for the asking > >Be well, > >Joe:) > > > > > *********** END FORWARDED MESSAGE *********** -=-=-=-=-=-=-=-=-=-=-=-=-=-=- Bruce Lane, Owner & Head Hardware Heavy, Blue Feather Technologies -- http://www.bluefeathertech.com ARS KC7GR (Formerly WD6EOS) since 12-77 -- kyrrin(a)bluefeathertech.com "I'll get a life when someone demonstrates that it would be superior to what I have now..." (Taki Kogoma, aka Gym Z. Quirk)

24 years

PowerMac 7100/66av

by mythtech＠mac.com

> I have a PowerMac 7100/66av (almost 10 years old now) and i broke like > half the keys on the keyboard and the mouse, i was wondering if there is > any > way to do one of the following to get it up without them. > > Make a disk of some sort which runs and sets up VNC and the network? > Get a MkLinux disk that sets up the network and sshd? If you have access to another mac, you could burn a bootable CD preconfigured with what you want, boot from it (provided you can still use the letter C on the keyboard), and then access the Mac via VNC (or whatever you setup on the CD). Or, you could just check eBay, as new ADB keyboard for that computer will likely be found for around $5. (mouse being about the same cost) -chris <http://www.mythtech.net>

24 years

FYI: Yahoo Mail Account info Alert. (fwd)

by mcguire＠neurotica.com

On March 30, Russ Blakeman wrote: > In addition to that, you'll no longer be able to get the mail from your > Yahoo! mail via POP (I get mine into Outlook rather than using the webmial > reader at mail.yahoo.com - this is unless you fork out some cash. Wow...sounds like Yahoo got some suits. -Dave -- Dave McGuire "...it's leaving me this unpleasant, St. Petersburg, FL damp feeling on my shorts..." -Sridhar

24 years

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