test-drb May 2003

test-drb@ccmp.vtda.org

284 participants
500 discussions

by jim＠jkearney.com

Thanks to the kindness of Mr. Robert Baer, I've just received a fantastic set of 8008-related documents. As I'm able I'll be scanning them and putting them on my 8008 web page http://www.jkearney.com/8008/. The catch includes: - Hal Singer's _Mark-8 (later Micro-8) Newsletter_, vol 1 #1 - vol 2 #6 (1974-1976). All kinds of modifications, programming and war stories about the Mark-8, and later covering the 8080-based computers such as the MITS Altair. - Hal Chamberlin's _The Computer Hobbyist_, #1 - #10 (1974-1976). An 8008 vector CRT display interface design, cassette interface, and an S-100 floppy controller were big topics in these. - The Microsystems International 8008 data book (they were Intel's Canadian second source, in addition to Siemens in Germany), containing not only the data sheet but a complete design and monitor listing for the MOD8 computer. - A number of MOD8 add-on designs from various individuals, including parallel I/O, audio cassette interface, and interfaces to the Suding scientific calculator board from Mini Micro Mart (remember them? There are a couple of their catalogs here too) - (this is not 8008-related, but too good not to mention) An original copy of Tom Pittman's Tiny BASIC Experimenter's Kit with the 6800 addendum (printed on typewriter paper on a teletype, no less). Unfortunately the IL code interpreter source is no longer with the package. Dr. Pittman has put this on the web, by the way: http://www.sbuniv.edu/~tpittman/IttyBitty/; the copies I have here appear to be identical. Jim

21 years, 1 month

DSSI vs DSSI... connectors

by allain＠panix.com

Hi, For few years everything i picked up with DSSI interface used mini-idc frmale connectors, leaving me with the impression that that was the connector for all DSSI. Later I found some that used mini"centronics" female connectors, so I was wrong, there are (at least) two types of connectors. Question is, are they compatible, and, where does one find an adaptor between the two (or a part number for one)? TIA John A.

21 years, 1 month

Intel iPDS, IBM 5110 FA

by rigdonj＠cfl.rr.com

Supposed to be working and complete with SW and manuals but located in Belgium :-( <http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=2730583978&category=1247> He also has an IBM 5110 <http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&category=8101&item=3416132054> Joe

21 years, 1 month

No space for vinatge computers in australia (fwd)

by Robert_Feldman＠jdedwards.com

You've obvoiusly never been in a <insert type here> museum's storeroom. -----Original Message----- From: TeoZ [mailto:teoz@neo.rr.com] Sent: Tuesday, May 20, 2003 10:20 AM To: cctalk(a)classiccmp.org Subject: Re: No space for vinatge computers in australia (fwd) <snip> For a museium to have many multiples of the same item is a waste of space (which costs money). <snip>

21 years, 1 month

Oldest computer still in current use

by cheri-post＠web.de

Nice to know, that the possibility is given to connect my PDP11/23 to the internet via TCPware. It uses RSX-11M. Thanx alot for the information ! Pierre cctech(a)classiccmp.org schrieb am 16.05.03 17:18:30: > > >On Sun, 2003-05-11 at 15:29, Zane H. Healy wrote: > >> For the person asking about connecting a PDP-11 to the net: > >> There is TCPware for RSX-11M, RSX-11M+, MicroRSX, and I believe RT-11, > > > >If you have more information about the availability of TCPware for > >RT-11, I would be very interested. > > I've no idea, I know the RSX-11M+ version is still available. I assume if you contacted them they'd sell you a license. I also assume you're a hobbyist, and even if you're not, Alan Baldwin's probably offers more features. > > 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/ | ____________________________________________________________________________ Jetzt bei WEB.DE FreeMail anmelden = 1qm Regenwald schuetzen! Helfen Sie mit! Nutzen Sie den Serien-Testsieger. http://user.web.de/Regenwald

21 years, 1 month

Help this guy?

by vcf＠siconic.com

Can someone help this guy? See below. Please send any help messages to <obertlnordin(a)worldnet.att.net>. ----- Original Message ----- From: Vintage Computer Festival <vcf(a)siconic.com> To: OBERT L. NORDIN <obertlnordin(a)worldnet.att.net> Sent: Thursday, May 15, 2003 18:24 Subject: Re: SOFTWARE > > Hi Obert. > > I just realized I never responded to this message. I apologize for that. > > On Tue, 4 Feb 2003, OBERT L. NORDIN wrote: > > > Do you have any information on the software WPS-PC by EXCEPTIONAL > > BUSINESS SOLUTIONS no longer in existence? I emulates Digital Equipment > > Company's WPS-8 Word Processing Software on personal computers. > > I'm sorry I don't. Do you need to convert some word processor files in > that format? > > > Also, do you have any information on CompuAdd Computer Company's 325TX > > Notebook? I'm trying to find the location of the notebook's C-MOS > > Battery. > > Again, I don't. Have you opened it up yet to search inside? ---------- Forwarded message ---------- Date: Fri, 16 May 2003 03:04:47 -0500 From: OBERT L. NORDIN <obertlnordin(a)worldnet.att.net> To: Vintage Computer Festival <vcf(a)siconic.com> Subject: Re: SOFTWARE Thank you for your response. Answers to your questions in regard to my inquiry are:- #1) Concerning WPS-PC I was trying to locate a source for that software. As I recall it could be better than DEC's (Digital Equipment Company, now Compaq/HP) "WPS-PLUS PC". #2) I have opened the CompuAdd 325TX and can't find anything looking like a C-MOS battery! -- 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 *

21 years, 1 month

Leaving the hobby

by loedman1＠juno.com

R. D. Davis provided this good advice (from experience ?) >And, let's not forget to insist that the judge address you as "your >royal holiness of technology preservation." Refuse to address the >court without being bowed to. Insist that the judge, and everyone >else, who doesn't collect computers, waits for the royal wave from you >before they speak. Lastly, when asked any computer-related questions, >insist that you be allowed to consult your followers and members of >your extended royal family, the classiccmp group. If they attempt to >charge you with contempt of court, plead permanent insanity (remember, >insanity is a good thing). When they try to cart you away to the >funny farm, claim that you're not mentally unstable, just eccentric, >but not crazy like everyone else who doesn't preserve vast quantities >of computers. Swear on the Weeks and James book "Eccentrics," and a >stack of holy 7th Edition UNIX source code, that it's the truth. ;-) To which Rich (who never learned when to remain silent) replied This could work as long as I was careful not to quote any CP/M commands, " Yes your Honor, pip pip findbad movcpm. And furthermore, alias sub and era", one way ticket to 72 hours observation. Rich

21 years, 1 month

Writing single density disks on a PC?

by dwightk.elvey＠amd.com

>From: "Fred Cisin (XenoSoft)" <cisin(a)xenosoft.com> > >Try Hypercross/PC-Xzap from Hypersoft. >I'd like to hear from anybody who has SUCCESSFULLY used 22DISK for Hi Fred I tried 22DISK for my M20 but it didn't work. The tables were wrong, as well as that my computer didn't deal with single density. Since it had no way of ignoring track 0, easily, I gave up on it. I found that the single density, on track zero, was solved by using the M20 to pre-format the disk and then used my routines to write the double density stuff to the remaining tracks. If Geoff has the same issue, he might be able to deal with the single density the same way. I found that the first track being single density was just a boot compatability issue. The first track would just have enough code to switch to double density and then the main loader was on track 1. This meant that the code was basically the same on all of the track zero's. I'd forgotten that the BIOS wouldn't deal with the single density. I was thinking more in terms of number and size of sectors. Dwight >anything other than CP/M, or used ANY commercial product for SD. >Yes, Catweasel or Option board THEORETICALLY could do it. >Posters about any product that "can do it", but don't differentiate >between "CAN DO" and HYPOTHETICAL POSSIBILITY can go F themseves. >(During the life of my products, I constantly competed with rumored, >but non-existent, capabilities of some products)

21 years, 1 month

Preserving ancient media

by Paul.HILLS＠landisgyr.com

That's sort of what I was thinking of. Of course, as you say, it is ZX81 specific. Were these home computer tape format's standardised in any way, or at least based on an older standard? I seem to remember a format called "Cottis-Blandford" from years ago. Am I right in saying that most home computer's tape data format was 1200Hz and 2400Hz for logic 0 and 1 (maybe the other way round). How many stop/start & parity bits (and possibly more control bits) are sent may be computer-specific I guess. Sampling the audio stream and decoding the 0s and 1s would not be too hard a task if a sound card with easy access to the sampling hardware was available. It would then be relatively simple to write an application would allow the number of start, stop, data (probably 8!) and parity bits to be selected, world decode the string of 0s and 1s into a byte-file. The format of this file, again, would be computer-specific of course. If I get time I may have a go at this. paul -----Original Message----- From: David Holland [mailto:dholland@woh.rr.com] Sent: 17 May 2003 02:36 To: Classic Computer Talk Subject: RE: Preserving ancient media The following MIGHT be a good place to start: http://www.geocities.com/SiliconValley/Ridge/9965/ ZXTAPE 3.0 Its directed towards the zx81, but it could be applicable to your application. Dunno. I've a feeling every computers tape format is different, though. David On Tue, 2003-05-13 at 03:25, Hills, Paul wrote: > I have quite a bit of software on cassette tapes for 1980s home computers. > Does anyone know of a simple method (without having to design and build > myself a dual-tone decoder circuit + write suitable PC software) of getting > this information onto a PC? I guess the home computer emulator pages on the > web must have done this. > > Maybe I could record it as a WAV file then write a program to decode the > WAV? Or would MP3 encoding be capable of compressing and reliable expanding > the audio data (MP3 is of course designed to compress music which these > squeaks and whistles clearly are not, even if they lie within the audio > spectrum!). > > paul

21 years, 1 month

PERQ 1

by purpletwilight3000＠yahoo.co.uk

Hi I recently acquired a Three Rivers Computer PERQ 1, together with PNX - a unix style OS. Unfortunately in the previous move the PERQ HD was not locked - so the HD needs reformatting. Does anyone have the formatter software (on 8" disk) for this machine - I understand it wasnt distributed with the OS. I have a PNX boot disk - but no POS so would need a bootable POS disk with the formatter on to get the system up and running. Any help appreciated. Thanks Ian.

21 years, 1 month

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test-drb May 2003