test-drb December 2001

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Off Topic - stereo to PC question

by gehrich＠tampabay.rr.com

Can anybody tell me how to attach my stereo to my PC so that I can transfer >from Cassette to CD-R or hard-drive.

22 years, 7 months

History of Computing exam question

by CLeyson＠aol.com

----- Original Message ----- From: <geoffrob(a)stmarks.pp.catholic.edu.au (Geoff Roberts)> To: <classiccmp(a)classiccmp.org> Subject: Re: History of Computing exam question >> 4) 1940 ? >> Enigma - Electromechanical state machine. Colossus wouldn't have >> been built without it. > Hmmm, possibly true, though not for the reason you state. The success > against Enigma using 'cracking' machines led to the idea of building > Colussus to crack the "Fish" machines. I'd forgotten about the "fish" cyphers "Tunny" and "Salmon". Thanks for the reminder. Your're right about the Bombes. The Poles were way ahead of anyone else and didn't get very much recognition for their work. >> 13) 1968/9 >> The Apollo guidance computer - Helped get man to the moon. > Are we talking about the ones on the ground or the ones in the spacecraft? > If the spacecraft, was the one in the LEM the same machine? Anyone got any > info on it? Any examples survive? I meant the ones in the spacecraft. They were major landmarks in terms of reliability both in terms of hardware and software. They were all digital whereas most guidance computers from that era were analogue. As for info on these machines, I just did a search, and google threw up 1800 matches ! Try the NASA website http://www.hq.nasa.gov/office/pao/History/computers/Part1.html I don't expect one will ever appear on ebay but there must be a few left in various museums. Chris Leyson

22 years, 7 months

HD Controllers - S-100 & Corvus Omninet

by mhstein＠usa.net

As far as I can tell, IMI originally used a proprietary interface but when IBM came into the game they switched over to ST506 and IMI drives were in fact put into some AT's; same HDA but a different PCB. I have various versions of the 5014/5018/5021drives and have in fact switched boards back & forth. And yes, the drive clock signals were used for data transfer, at least by Cromemco; once the appropriate sector was located, data was clocked into/out of a shift register by the SysClk signal from the drive. m -----------------Original Message---------------- Date: Sat, 1 Dec 2001 10:28:45 -0700 From: "Richard Erlacher" <edick(a)idcomm.com> Subject: Re: HD Controllers - S-100 & Corvus Omninet I had a couple of IMI drives back in the '80's and find, from my doc's that they were, in fact, ST506 compatible. I wonder if the drives you're seeing in your brocheure are earlier than that. The 8" Quantum drives all provided a clock on the data cable, that could be used to recover data. I'm not exactly sure how this was intended to be used, but several controllers for 8" drives relied on it, not having a PLL on board. The Shugart drives apparently didn't provide this clock. Dick

22 years, 7 months

HD Controllers - S-100 & Corvus Omninet

by mhstein＠usa.net

Thanks for the interesting info, Frank. I thought that Corvus had used these drives because I've got Corvus ads from old Bytes and they certainly do look like these 7710's; not much else looks like these babies. But although I've seen a reference to ANSI X3T9, I gather that the interface was proprietary to IMI. Don't need the docs for the interface, but thanks for mentioning that you've got some; I've got a manual for the controller from the good old days when manuals actually told you something, as well as calibration notes for the drives, and am about to check out the drives before I get rid of them. I was just curious if the controllers are of any use for any other drives since I have more controllers than drives. If you want the Corvus board, send me a note off list & let me know where you are. mike -------------------Original Message---------------- Date: 01 Dec 2001 00:08:00 -0800 From: Frank McConnell <fmc(a)reanimators.org> Subject: Re: HD Controllers - S-100 & Corvus Omninet M H Stein <mhstein(a)usa.net> wrote: > Does anybody know anything about the HD interface bus Cromemco used > with their early IMI drives <snip> Yes, Corvus used these drives. I'd expect Onyx did too; the story is that the VC who funded IMI also funded Onyx and Corvus so that IMI would have customers. It's interesting to know that Cromemco used them too. I'm sitting here looking at a photocopy of a data sheet of sorts for the IMI 7710, and it does provide some description of the interface. 25 signals on a 34-line bus. I suspect it's somewhere between "more than I want to type" and "less than you need to know to use the drive", because I can't quite figure out how you would transfer a block of data to the drive from what's printed here. > Finally, I also have a Corvus S-100 board; looks like it might be a > host adapter for a disk drive of some sort. Only markings are > Corvus S-100, 8008 REV K, copyright 1980; 11 TTL chips & a 34 pin > header. Anybody know what it is and/or want it? Yes, that's the Corvus hard disk interface for S-100, p/n 8010-08008-00. I could be interested in it. - -Frank McConnell

22 years, 7 months

Traf-o-data

by Innfogra＠aol.com

In a message dated 11/30/01 10:55:19 PM Pacific Standard Time, celt(a)chisp.net writes: > Traf-O-Data automatic traffic measuring device - Microsoft's first piece > of hardware > I would like to know more about this? What, When, Why, What happened to it? Paxton Astoria, OR

22 years, 7 months

Central Point Option Board (earlier non-ASIC version) chips

by fmc＠reanimators.org

ard(a)p850ug1.demon.co.uk (Tony Duell) wrote: > U23 is still a TTL type (a 3-state buffer, not a counter, now), so data > on it is trivial to find. Yes, it was the difference in number that suggested a difference in function and that is why I thought I should bring attention to it. Not being a hardware guy, I don't have that (number, function) map cached in my brain. > I don't recognise U3, though. I guess it was made by UMC. How many pins > does it have? Eight. mark_k (who started this thread) told me it is a data separator. -Frank McConnell

22 years, 7 months

Atari 4160STE ?!

by walgen＠e-Spirit.de

Hi, I just got an Atari 4160STE (case only) - does anyone know details about the history of this machine? Some sources say that it was a developer version of the Atari 1040STE ... http://www.old-computers.com/museum/computer.asp?c=272 BTW: Is there a complete list of all Atari 16Bit computers that were sold? As far as I kown at least these models were sold - because I own them :) I own: Atari 260 ST Atari 520 ST Atari 520 STM (boxed) Atari 520+ ST Atari 520 STFM Atari 1040 STF Atari 1040 STFM Atari Mega ST-1 Atari Mega ST-2 Atari 520 STE Atari 1040 STE Atari MEGA STE Atari Falcon 030 Atari ATW 800 Atari ST Book I know but don't own: Atari Stacy Atari TT Atari Mega ST-4 Stefan. www.HomeComputer.de

22 years, 7 months

Central Point Option Board (earlier non-ASIC version) chips

by fmc＠reanimators.org

Don Maslin <donm(a)cts.com> wrote: > Okay, starting at top-left hand and reading horizontally, they are as > follow: > > HD74LS112P HD74LS11P HD74LS153P DM74LS163AN > SN74SO4N SN74LS393N SN74LS174 SN74LS163AN > SN74LS174N HD74LS86P HD74LS163P > SN7433N SN74LS174N HD74LS273P > HD74LS14P HD74LS367AP HD74LS194AP HD74LS374P > SN74LS133N HD74LS32P HD74LS194AP HD74LS374P Hmm, mine looks like this. * marks what I take to be significant differences. (U5) HD74LS112P (U11) HD74LS11P (U17) HD74LS153P (U23) HD74LS125AP * (U4) 74S404PC (U10) SN74LS393N (U16) SN74LS174N (U22) SN74LS163AN (U3) UM8326 * (U9) SN74LS174N (U15) HD74LS86P (U21) DM74LS163AN (U8) SN7433N (U14) SN74LS174N (U20) HD74LS273P (U2) HD74LS14P (U7) HD74LS367AP (U13) HD74LS194AP (U19) HD74LS374P (U1) SN74LS133N (U6) HD74LS32P (U12) HD74LS194AP (U18) HD74LS374P -Frank McConnell

22 years, 7 months

FS: HiNote

by oliv555＠arrl.net

Thought I'd offer up my ultraII before eBaying it. Just upgraded to a HiNote 233. Digital HiNote UltraII model LTS5150 Win98, 150mhz cpu 32mb ram 1.4gb hard drive floppy drive dock 6xCD mobilemedia dock i/o expansion dock ac adapter NOTE: battery does not hold charge $85, shipping included No docs or software other than the loaded os. The only flaw im aware of, about 1 of every 10 bootups it stops at the end. Always fixed with a reboot. Don't recall this happening when I was running w95. see at: http://www.hal-pc.org/~nicko/hinote.jpg -nick

22 years, 7 months

HD Controllers - S-100 & Corvus Omninet

by fmc＠reanimators.org

"Richard Erlacher" <edick(a)idcomm.com> wrote: > I had a couple of IMI drives back in the '80's and find, from my > doc's that they were, in fact, ST506 compatible. I wonder if the > drives you're seeing in your brocheure are earlier than that. I believe they are. The photocopied brochure pages are stapled to photocopied pages from a 7710 disc drive specification manual, and those latter pages are dated 1/79 and 5/79. -Frank McConnell

22 years, 7 months

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test-drb December 2001