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101090 discussions

by BigLouS＠aol.com

In a message dated 97-06-20 18:10:08 EDT > Kai Kaltenbach wrote: > > > > I'm kind of curious how many Altairs we have on this list. I've got > > > > 3... I suggest that a Classic Computer Rescue team head out to Kai's house and rescue two of those Altairs. They could them be put up for adoption and ultimately be given a loving home where they will be receive the INDIVIDUAL care and nurturing that they deserve. :-) Lou

29 years, 1 month

CP/M disk (was Digilog 1500)

by BigLouS＠aol.com

In a message dated 97-06-20 03:16:54 EDT, Tim Shoppa wrote: > Hmm. One of my friends got a LOT of apple II stuff from a business that > > went under. One of the things he got was an 8" CP/M disk. I'm gonna go > > try to get my hands on it. (It said CP/M on it). It may be > > destroyed/gone by now. This was a year or two ago, before I got > > interested in old stuff... Any way to tell what system it's for without > > being able to read it? The disk could be for an Apple system. 8" drive controllers where offered for the Apple II line back in 1980 because of the huge (for the time) capacity of DSDD 8" disks. I had a Lobo controller hooked up to a Franklin 1000 and two 8 inchers and it was pretty impressive. I eventually replaced the drives with a 10 meg Corvus hard drive (cost $5000). I've been trying to locate an 8" controller for my Franklin 1000 for quite a while but haven't had any luck. Lou

29 years, 1 month

Collector Article

by sinasohn＠crl.com

At 12:36 AM 6/20/97 -0700, you wrote: >Gee, then I have an Apple bonanza worth $2000 in my garage. Whatever. >This is what I am dreading of this hobby, that assholes like this Haddock >guy start trying to price things out. I think it's as someone said; at the time the book was written, Apple II's were still in strong demand, esp. from the school market. My girlfriend's school still uses and maintains a fleet of II's. (Schools simply cannot afford to buy lots of new computers.) (Ask me, if you're interested, about how macs ended up in her classroom.) --------------------------------------------------------------------- O- Uncle Roger "There is pleasure pure in being mad sinasohn(a)crl.com that none but madmen know." Roger Louis Sinasohn & Associates San Francisco, California http://www.crl.com/~sinasohn/

29 years, 1 month

AIM65

by KFergason＠aol.com

In a message dated 97-06-18 02:16:46 EDT, you write: << His e-mail address is Mikeooo1(a)aol.com and he left his phone number for me: (201) 331-1313. Please reply if you are interested in going in together on this. Sam >> I would be interested in this. Kelly Fergason KFergason(a)aol.com

29 years, 1 month

BOOK The History of Computers

by manney＠nwohio.com

I'd like to buy. Can I reserve it? Please e-mail me with your address and I'll send you a check. (woukd you prefer money order? some sort of trade? I have scads of old computer stuff.) Manney ---------- > From: classiccmp(a)u.washington.edu > To: Manney > Subject: FS: BOOK The History of Computers > Date: Friday, June 20, 1997 1:52 PM > > For Sale: > > The History of Computers -A Family Alubum of Computer Genealogy- > by Les Freed > ZD press > ISBN 1-56276-275-3 > all color and lots of pictures and illustrations > > $12 (shipping included within the United States, original price is $24.95) >

29 years, 1 month

EBCDIC

by rector＠rocketmail.com

Sam, I don't own any computers that use EBCDIC, but I use them every day at work. EBCDIC - extended binary coded decimal interchange code is the character set used on most (if not all) IBM mainframes and midrange systems. (IBM S/390, S/36, S/38, AS/400 etc.) This set has its roots in punched cards (and prior) and really makes more sense when viewed >from that perspective vs. that of the way things are today. ASCII - American National Standard Code for Information Interchange. Back when I was in college, an instructor stated it this way: (Speaking about the need for a uniform way to share info across machines.) "There are two ways to obtain a standard in the industry. The first is to get a big committee together and have all parties involved agree on what it should be (ASCII). Or, be the largest company in the industry, do it your own way and force everyone else to adopt your way of thinking. Dan ---Sam Ismail <dastar(a)crl.com> wrote: > > > DOes anyone have a computer which uses the EBCDIC character set, rather > than ASCII (did I get the acronym right? what does it stand for anyway)? > > Just curious. > > > Sam > ------------------------------------------------------------------------------- > Computer Historian, Programmer, Musician, Philosopher, Athlete, Writer, Jackass > > > > _____________________________________________________________________ Sent by RocketMail. Get your free e-mail at http://www.rocketmail.com

29 years, 1 month

Mark 8

by allisonp＠world.std.com

> Today it would look a LOT different. Let's see, what WOULD it look like? > Start with a PAL to generate the oddball clocks, and some misc decoding, f > it, then throw a 32k skinnydip SRAM at it (OK, you can tie one address li > to ground to limit it to 16K), an 8K EPROM (since that's what I've got in > stock), say, an 8251 for serial I/O, and you've got a basic machine. Actually a 8ksram and a 8kprom would do it. Or better yet a 2 or 8k EEprom. That this is slow enough you could use the EEprom for sram! (the slow parts was 20us and the real fast one was 10us (single byte instruction). The real annoying part is capturing all the muxed status and syncing it. Making the front pannel logic is the real work, it wouldn't be right without the FP! > What do ya think? Tim, your a sick puppy. It's got style! Allison

29 years, 1 month

This mlist is ACTIVE!

by bluesky6＠ix.netcom.com

I just subscribed to this mailing list yesterday and am amazed at the traffic. Just today, I seem to have received more than 80 messages! Ben

29 years, 1 month

Mark 8

by timolmst＠cyberramp.net

At 06:30 PM 6/18/97 -0500, you wrote: > >On Wed, 18 Jun 1997, Kai Kaltenbach wrote: >> | ---------- >> | From: James Willing >> | Subject: Re: Mark 8 >> | >> | On Wed, 18 Jun 1997, Marvin wrote: >> | >> | > I need another project :) and I was thinking about building the Mark >> | > 8 computer. Somewhere, I seem to recall that someone was having the >> | > board sets for this computer made up, does anyone out there know >> | > or remember who might be doing this? >> | >> | That would be me... >> >> If you get one of these up and running, I have a Scelbi book, "Space >> Wars for the 8008 Microprocessor" with full hex code listings... > >I also have the three books - > > An 8008 Editor Program > Machine Language Programming for the 8008 > Assembler Programs for the 8008 > >I am such a packrat 8-) > >BC > > Here I go volunteering again. Could those books be scanned/ocr'd? I'm sure that the original authors wouldn't care, even if they did admit to writing them. I have all the hardware and software to do that. I have a softspot in my heart (and my head) for the 8008. That was my first computer. I couldn't afford to buy something like the Mark 8, so I designed, and built it, myself. By the time I was ready to retire it, I had an S100 video card (SSM), and a 9-track tape drive, running one track serial at 5k baud. Used my own designed r/w amps, even. It ran great, just real slow. I still have the CPU chip from that machine, holding down a piece of foam. Seing these posts about the Mark 8 made me nastolgic. If I could get enough data, I might consider building a new machine with that old "first CPU" chip. Today it would look a LOT different. Let's see, what WOULD it look like? Start with a PAL to generate the oddball clocks, and some misc decoding, for it, then throw a 32k skinnydip SRAM at it (OK, you can tie one address line to ground to limit it to 16K), an 8K EPROM (since that's what I've got in stock), say, an 8251 for serial I/O, and you've got a basic machine. What do ya think? Tim Olmstead timolmst(a)cyberramp.net

29 years, 1 month

C64 CP/M carts (was: Re: Yet another weekend haul story)

by chemif＠mbox.queen.it

At 06:57 19/06/97 -0400, you wrote: > >On Sat, 14 Jun 1997, steve wrote: > >> At 06:10 13/06/97 -0400, you wrote: > ><snip> > >> >Of course this all assumes that I *have* a PC. > ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ ><snip> > > >Besides, I was talking about CP/M for the Commodore 1541 drive. That's a >multi-speed drive that uses GCR encoding, not MFM. Try writing THAT with >22DISK on your PC-clone. >I used to know that only C=1570 and C=1571 were capable to read and write CP/M disks in a proper way. (GCR+MFM) By the way anyone else apart me owning a C=1570 here? Ciao

29 years, 1 month

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