test-drb

test-drb@ccmp.vtda.org

101090 discussions

by allisonp＠world.std.com

> So I am asking *you*, lover of the hardware to reconsider your thoughts > and ask yourself what would your collection mean without all of the > above. I, for one, will be glad to learn that you had second toughts > about this. In either cases it could be useful to read here your > motivations. Interesting comment.

28 years, 9 months

AIM65 (fwd)

by dastar＠crl.com

More information on the AIMs. I am currently working on a bulk deal with Mike for $20 a piece. While these are truly AIMs, they are not "stock" AIMs. They have been altered (really improved). While I think the improvements are very nice, I would've preferred a stock AIM. However, these definitely sound like nice units. Anyway, here's the scoop. Sam ------------------------------------------------------------------------------- Computer Historian, Programmer, Musician, Philosopher, Athlete, Writer, Jackass ---------- Forwarded message ---------- Date: Fri, 20 Jun 1997 15:45:28 -0400 (EDT) From: Mikeooo1(a)aol.com To: dastar(a)crl.com Subject: Re: AIM65 Gentlemen, In response to all the interest so many of you have shown in my Aim 65 collection let me say that they are all in new working condition.The beauty about the Aim 65 is that it was a single board computer which was self contained in that it had its display,printer,and memory all mounted on its board so that peripheral attachments weren't necessary.Yes,it comes with a keyboard and power supply also.I developed a plastic enclosure and metal base and ROM board for the system so the keyboard and power supply could be housed with the Aim in a compact unit and programs could be burned onto eproms which would seat in the ROM board rather than rely on tape storage which involves a recorder hookup and would be quite slow. I didn't like the enclosure or the unwieldy power supply that Rockwell created for the Aim so I had my own plastic enclosure injection molded by a plastics manufacturer. I had a metal base manufactured for the unit so it could be professionally represented as an industrial computer rather than just the "hobbyist's computer" Rockwell originally designed it for.I also have production equipment I developed for creating programs downloading them directly from the Aim into the RAM buffer of eprom burning devices and ultimately housing the programmed eproms in the ROM board I developed which sat on the bottom of the case housing.I have built a successful company around the Aim which is truly an amazing computer and has withstood the test of time as many people are still using it today.As for its value,the unit sold for approx.$450 (computerboard and keyboard) and its part are still in demand today.The display chips alone cost $30 apiece and there are 5 on each display while the print head alone sells for $105,the entire printer about $180.

28 years, 9 months

Banning Culture (was: Re: Why?)

by sinasohn＠crl.com

At 07:59 PM 6/21/97 +0000, you wrote: >Is "culture" banned from this site then? (We are getting there in the >end....it's a CULTURE clash, is it?) Yes! No more culture! Only trashy romance novels, Beverly Hills 90210/Melrose Place, and the Bee-Gees should be discussed here! And that's Culture *Club*! (Seequa, seequa, seequa, seequa, seequa, seequa chameleooooon...) --------------------------------------------------------------------- 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/

28 years, 9 months

Larry's List

by foxnhare＠goldrush.com

Well after getting my Educator 64 working (yipee!) and realizing I have alot of the Commodores I kinda wanted to collect from years back I decided to write out a quick list (a>this is from memory so there probably is stuff missing and b>it in no way shows how many repeats of items I have (like 3 VIC-20s, umpteen datasettes, etc.) c>I have NO interested in selling any of it.) Hope you find it interesting. (=)) Larry's Commodore Collection: Calculators: Minuteman 6 Minuteman 6x Custom Greenline Rechargable (greenline?) Model 784D PET Series Original PET with original ROMs and 32k ExpandaPET board PET 2001 Series w/Upgrade ROMs 32k PET 2001 Series w/4.0 ROMS & MTU VM Graphics Board CBM 2001 Series 32k PET 4000 Series w/32k CBM 8032 SuperPET Model SP9000 PET/IEEE-488 Peripherals/Firmware RAM/ROM EPROM emulator Centronics Printer Interface 4040 Dual Disk Drive 2031LP Single Disk Drive 8023 Wide Carriage Dot-Matrix Printer Original 'modified' Sanyo cassete deck C2N Datasette in black case C2N Datasette in cream case w/counter Toolkit ROMs (upgrade and 4.0 versions) VIC-20 Series VIC-20 (DIN power Supply) VIC-20 Peripherals/Firmware Commodore Joystick Commodore Paddle Controllers Commodore C2N/1530 low-profile datasettes Commodore VIC-1541 Single Disk Drive Cardco Cartridge expansion unit Koala Pad MSD 24k RAM cartridge Commodore 8k RAM cartridge Commodore 3k+SuperExpander Cartridge HES HESMON utility cartridge Omega Race Tooth Invaders Defender Choplifter Radar Ratrace Donkey Kong Cosmic Cruncher C64/B-128 Series Commodore 64 (8-Pin Video) Commodore 64 w/stereo SID modification Commodore SX-64 portable Commodore P-500 Educator 64 (Commodore 64 in PET/CBM 4000/8000 style case) 64/B-128 Series Peripherals/Firmware Commodore 1702 Color Monitor Commodore 1541 Disk Drive Star Micronis NX1000C Dot Matrix Printer Citizen iDP560CD 2 3/4" wide Dot Matrix Printer Kinney Video Digitizer Alien Group Alien Voicebox Voice Synthesiser Currah Technologies Voicemaster 64 Wico Trackball controller Total Telecommunications 300 Baud Modem Inkwell Tech. Lightpen Lemans Jumpman Jr. SuperGraphics Jr. HESMon 64 Gridrunner Astroblitz Commodore 264 series: Commodore 16 Commodore Plus/4 Commodore Plus/4 w/standard 64 PS connector 264 Peripherals/Firmware Atari style joystick adapter Datasette plug adapter +4/16 joystick Jack Attack Plus Calc Plus Script Commodore 128/128D series Commodore 64C Commodore 128 Commodore 128D (missing keyboard) Commodore 128 Series Peripherals Commodore 1670 1200 Baud Modem Commodore Modem 300 - 300 Baud Modem Commodore 1902 Color Monitor Commodore 1541C Disk Drive Commodore 1541-II Disk Drive Commodore 1571 Disk Drive Commodore 1581 3.5" Micro Floppy Disk Drive Commodore 1764 RAM Expansion Unit Commodore 1351 Mouse CMD RAMLink Ram Expansion Unit CMD HD series Hard Drive Unit Aprotek 2400 Baud Modem SuperSnapshot 5 Utility Cartridge Lotsa Joysticks... ;) Still Looking for: 8050 Dual Disk Drive 8250 Dual Disk Drive SFD-1001 Single Floppy Drive 8010 Modem (acoustic coupler) 4010 Voice Response Unit (speech synthesiser) CBM 9060/9090 Hard Disk Unit B-128/B-256 Series Computer Computereyes for Commodore 64 Commodore comaptible EPROM programmer Commodore 65 Commodore LCD (I wish!) Serial<->IEEE-488 interfaces -- -+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+- Visit our web page at: http://www.goldrush.com/~foxnhare Call our BBS (Silicon Realms BBS 300-2400 baud) at: (209) 754-1363 -+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-

28 years, 9 months

EBCDIC

by Philip.Belben＠powertech.co.uk

Last week - while I was on holiday on the Noprfolk Broads - someone (I forget who) asked if there had ever been a microcomputer that used EBCDIC. I have an IBM System/23 (aka Datamaster) at home. It has system board, mono monitor, twin 8-inch floppies and PC-style keyboard in one box, and a printer hung off the back. It has an 8085 processor, 64k RAM and 112K ROM. The expansion slots are suspiciously IBM PC like... This box programs in BASIC (the 112k of ROM contains almost a complete mainframe basic with matrix ops, etc.) and uses EBCDIC as its character set. It has interesting features such as a file system with 8.8 character filenames (as opposed to the CPM and later 8.3 that everyone seems to use nowadays :-( ). If the printer is switched off or disconnected, it fails power on diagnostics! As I recall, I was given it by a friend at college in ?1988. He informed me that his stepfather paid L11000 (i.e. UK pounds) for it in ?1980. I once tried to get the BASIC manual out of IBM technical publications. It was out of print, so they persuaded me to shell out L30 (about $40 or $50?) for the mainframe BASIC manual. Not a good buy!!! Anyone else out there have one of these? Know any more about it? Philip. <><><><><><><><><><><><><><> Philip Belben <><><><><><><><><><><><><><> Das Feuer brennt, das Feuer nennt die Luft sein Schwesterelement - und frisst sie doch (samt dem Ozon)! Das ist die Liebe, lieber Sohn. Poem by Christian Morgenstern - Message by Philip.Belben(a)powertech.co.uk

28 years, 9 months

CLASSICCMP digest 92

by foxnhare＠goldrush.com

Subject: Re: Classsic Computing Newsgroup revisited Message-ID: <199706222028.4491(a)tw500.eng.cam.ac.uk> >> I'm against new newsgroups being created, especially when the topics >> are quite technical and already well-handled by existing newsgroups. >> For example, people wanting Apple II help can go to comp.sys.apple2, >> users of various CP/M systems hang around comp.os.cpm, PDP-11 >> users have vmsnet.pdp-11, etc. >Agreed. Off-hand I can't think of a single classic computer which is not >covered by at least one existing newsgroup. If you don't know which group >to post to, you'll find that most of them are quite friendly to >just-off-topic questions. If you find an obscure Z80 machine that didn't >ever run CP/M, I'm quite sure that a post to comp.os.cpm would get either >some help or a pointer to the appropriate newsgroup. I'd be _very_ >supprised if it got a flame. Let's get this straight: A) alt.technology.obsolete does not need to be created, it has been on the net for at least as long as I have (6+ months) B) The newsgroup is currently dead (except for the occasional spamming post.) C) having specific newsgroups is ok, but what if you want the open discussion of computers like we have here? I kinda get irked seeing Spectrum posts in comp.sys.cbm. But wouldn't mind on a mixed group, because I am in that mode when I am reading it. (sound logical?) So, again, the newsgroup (alt.technology.obsolete) exists now and has been in existence for quite a while and I suggest we put this good opportunity (and name) to use. Larry Anderson -- -+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+- Visit our web page at: http://www.goldrush.com/~foxnhare Call our BBS (Silicon Realms BBS 300-2400 baud) at: (209) 754-1363 -+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-

28 years, 9 months

Computer Ind. Books

by foxnhare＠goldrush.com

>From: "e.tedeschi" <e.tedeschi(a)ndirect.co.uk> >Subject: bibliography >What do you think of this bibliography? Have I missed any important book >on the subject? Please help me in making this a useful refence for >everybody to use, if you care. Thank you There was also one by COMPUTE! Books, the (Small?) Computer Wars I think the author's name is Michael Tomzyk. I have yet to find it (or many that you mentioned) Though I found Steven Levy's Hackers very entertaining! One interesting book my wife came across in a thrift store is: "The Compleat Computer" a compilation edited by Dennie Van Tassel. It was printed in 1976 and has alot of press clippings, cartoons, articles and anecdotes of the then blossoming microcomputer age. One nice bit is the transcript of the session between Eliza (the psychiatrist program) and Parry (the paranoid program). Larry Anderson -- -+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+- Visit our web page at: http://www.goldrush.com/~foxnhare/ Call our BBS (Silicon Realms BBS 300-2400 baud) at: (209) 754-1363 -+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-

28 years, 9 months

Collecting old microprocessors (as opposed to Computers)

by bluesky6＠ix.netcom.com

Does any one here collect old microprocessors like 4004, 4040, 8008, 8080 etc? The oldest CPU type I have is an NEC 8080A. Still trying to figure out how to make use of it. The legs are pretty corroded (used to live in humid climates). I've a Z8001 too, paid more than $100 for it but never used. Maybe I'll find an Olivetti M20 one of these days... There's a UK company that used to advertise in the UK version of the Elektor 4-5 years ago. They advertised the TI9900, NS32032 and other odd CPUs. Ben

28 years, 9 months

IBM PCjr

by IVIE＠cc.usu.edu

> -spc (Although with proper programming, the CGA could support 160x100 > 16 colors (or was it 160x200?)) 160x100. You program the 6845 to display two scanlines per character then use the half-on/half-off blocks to control the pixels. Roger Ivie ivie(a)cc.usu.edu

28 years, 9 months

Collecting old microprocessors (as opposed to Computers)

by IVIE＠cc.usu.edu

> The reason I liked the 7000 so much was the display. It used a - I want > to say NEC 7202 display chip - might be wrong tho. It allowed vector > graphics and text to share the same screen. You could tell it how much > text and then anything above that was graphics. It took basically plotting > commands to do the graphics. Never did understand why that didn't catch > on! That would be the NEC 7220. It was also used in the DEC Rainbow graphics option; I've not seen a DECmate II graphices option, but I suspect it was used there as well. A friend of mine built a video card for an Apple ][ using the 7220. We could do 1024 x 780, IIRC. He was experimenting with it and a touch screen device (a flat glas plate to go over the monitor with transducers along two edges; it put a high-frequency vibration on the glass then listened for echoes) as a programmable user interface. We were using Microsoft F80 on the Softcard connected to 8" DSDD diskettes. When does it start being an Apple ][ and start being a CP/M machine? Oh yeah; we used a plotting library from a company called Tesseract. Anyone else used it? Roger Ivie ivie(a)cc.usu.edu

28 years, 9 months

H8 Computer

by manney＠nwohio.com

> >What is a Heath H8 worth? I generally see H89's go for $25 US at hamfests. *I* wouldn't tie up $100 unless it was lovely and I really wanted one. Of course...it's worth what you want to pay for it, as Jim says

28 years, 9 months

PLEASE READ - suggestions to reduce list traffic

by kaikal＠MICROSOFT.com

I'd like to suggest that we all keep in mind the following tenets to help reduce the amount of superfluous traffic on this discussion list: - If your reply is to one individual, please send directly to them (you'll have to override your email program's default Reply address). - Please direct responses to solicitations such as group purchases, etc. directly to the solicitor only. thanks! Kai

28 years, 9 months

Jr. Dragons?

by jscarter＠worldnet.att.net

It's been years since I fiddled with a PCjr. It has a self test, to activate press Control-Alternate-Insert. Can't remember the specifics of the self test though. I don't know if Lotus for the jr required a disk, but I have been told it came on two separate cartridges. At 02:35 PM 6/23/97 +0000, you wrote: >As such, right now I have 1 complete Jr with floppy drive, sidecar, and >128K mem expansion (I believe... hafta look at the chips & calculate the >storage) with an extra internal floppy drive, an extra motherboard, an >extra keyboard (neither are chicklet, and one has a few stuck keys) I think >there was a Lotus 123 cartridge with it (but I heard rumors that it needed >a disk as well?) and a basic cartridge. There may be more stuff, but I >haven't looked at it since the move... > >Are you interested in it? > >HTH, >Roger "Merch" Merchberger James jscarter(a)worldnet.att.net

28 years, 9 months

Need source for...

by kyrrin＠wizards.net

In the process of getting ready to upgrade my RQD11 QBus/SCSI adapter to near-current level, I discovered that I need a source for a hard-to-get PROM. Specifically, one of two parts should do it. Signetics 82HS189 AMD AM27S281A I've already checked with the manufacturers and a couple of local distributors. Yes, I'll be looking for these on my upcoming scrounging trip, but it would be a Really Cool Thing if someone could point me at a source for them. Thanks in advance. -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- Bruce Lane, Sysop, The Dragon's Cave BBS (Fidonet 1:343/272) (Hamateur: WD6EOS) (E-mail: kyrrin(a)wizards.net) http://www.wizards.net/technoid "Our science can only describe an object, event, or living thing in our own human terms. It cannot, in any way, define any of them..."

28 years, 9 months

My current For Trade/Wanted List

by manney＠nwohio.com

I have an SX-64. don't lnow if it works, without KB cord (has KB, though.) Manney

28 years, 9 months

Cocos

by bwit＠pobox.com

Yes, that's correct. Over in the UK you had the Dragon, a neat little machine. Regards, Bob ---------- From: e.tedeschi[SMTP:e.tedeschi@ndirect.co.uk] Sent: Sunday, June 22, 1997 3:22 AM To: Discussion re-collecting of classic computers Subject: Cocos Just to help me understand better...when you refer to Cocos, do you refer to the Tandy TRS-80 COlour COmputers? Thanks enrico -- ================================================================ Enrico Tedeschi, 54, Easthill Drive, BRIGHTON BN41 2FD, U.K. tel/fax +(0)1273 701650 (24 hours) or 0850 104725 mobile website <http://www.ndirect.co.uk/~e.tedeschi> ================================================================ visit Brighton: <http://www.brighton.co.uk/tourist/welcome.htm>

28 years, 9 months

My current For Trade/Wanted List

by kaikal＠MICROSOFT.com

-------------------- Wanted: -------------------- Apple I * Altair 680 * Altair 8800a ("a" only) * Altair disk system * Compucolor II or 8051 Apple Lisa Exidy Sorcerer IBM 5100 KIM-1 RCA COSMAC (ELF/VIP) Commodore PET dual floppy system model 2040 Commodore SX-64 Portable (only if cheap or local) TRS-80 Model III (only if cheap or local) * Will trade Altair 8800b up/down/across for Apple I, or Altair equipment. Will also make substantial cash offers for these items and will reward leads. -------------------- For Trade: -------------------- North Star Horizon (wood case model) Apple ///+ Mattel Aquarius C64 in original color display box Kaypro II (wonky keyboard; FREE if you pick up, Seattle area) (Must sell/trade! Need space! Especially good deals available for LOCALS with reasonably interesting trades and/or cash offers, since that saves me so much time and effort with shipping!) Kai

28 years, 9 months

Friend Has Altos and Sanyo For Sale

by kaikal＠MICROSOFT.com

A friend of mine has the following systems available for sale (he's not a collector). Neither of us could really come up with a price, since these systems are a little out of my line. The Sanyo is a Z80 (not to be confused with the later MBC-550 which was an early 8088 MS-DOS clone). Both are in full operating condition. Altos 586 - 8086/512K - Xenix 3.0b - With 2 terminals (supports 8-9 users) - Hard drive - Floppy - Xenix Multiplan, etc. Sanyo MBC-1000 - Z80A - Built-in monitor - Single floppy - External 10MB HD - Keyboard - CP/M, WordStar, CalcStar, etc. email thadh(a)microsoft.com with offers (local preferred due to the size of this stuff)

28 years, 9 months

Apple ]['s and C=64 video/ Bad Feelings...

by cerebral＠michianatoday.com

You are correct about the slowness of the 1541, and I was not saying the 64 was 100% perfect, but for the money, the 64 still gives more bang in the video and sound department. and recently, CMD (Creative Micro Designs) wrote a new OS called JiffyDOS. it was comaptible with the original ROM, but used better timing loops that increased the serial bus performance! you just replace the ROM in the motherboard, and the rom in the 1541 with jiffydos, and the results were fantastic, just by rewriting the firmware, the 1541 was now FASTER than a 486 running MS-Hoss with a 5.25 drive. but no matter what 8 bit cpu you use, it is amazing what you can do with 1 MHZ by proper software design. I also timed the performace with a stopwatch, and I loaded a large music editor from the same disk, 1541 drive, with and without jiffyDOS stock 1541 1541 with Jdos 1 minute 20 sec 10 SECONDS!!! pretty spiffy eh?

28 years, 9 months

Update

by bill＠booster.bothell.washington.edu

Phew. Well I've pruned through my mail and made it to the bottom. To all of you who sent me personal e-mail over the last week - I'll get back to you in the next couple days. I'll also work on processing all the unsubs. On topic - this weekend I picked up some stuff: Need info on: Acorn monitor with strange connector, switch selects modes I, II, III 5 1/4" floppy drive for Atari ST (no brand) Just gloating: Apple IIgs with monitor and 5.25" drive (ROM 1) for $15 Stack of needed manuals at 0.39$ ea. (I'll post duplicates) Apple Disk III drive Franklin Ace 1000 An interesting one - I already have a 1000 and unforch. I think this one is too damaged to save (crushed case - cracked board). The thing is it has a strange disk controller which the Disk III (as in Apple II disk drive) was attached to. It also has a video board of some kind. No part numbers but I'll play around with it some more later. Bill ---------------------------------------------------- Bill Whitson - Classic Computers ListOp bill(a)booster.u.washinton.edu or bcw(a)u.washington.edu http://weber.u.washington.edu/~bcw

28 years, 9 months

Apple ]['s and C=64 video/ Bad Feelings...

by cerebral＠michianatoday.com

At 05:04 PM 6/22/97 -0700, you wrote: >On Sun, 22 Jun 1997, A.R. Duell wrote: > >> > from, there are compnents of computers that are shear art as the disk >> > controller in the apple II (from what I read the board was drawn 'not >> >> I'll have to disagree with you there. IMHO the Disk II controller is >> nothing other than a kludge. It could certainly have done with a track 0 >> sensor (that would have stopped the heads from banging on start-up). And, >> as a hardware designer, I don't like designs where most of the >> functionality is handled in software. > >Blasphemer! No really though, if you must call the Disk ][ controller a >kludge, at least qualify it by calling it a beautiful kludge, which it is. >Also, having software control over the disk drive is not a bad thing at >all. It allowed you to play directly with the bits on the disks and make >your own disk formats. It provided years of fun and challenge during my >teenage days trying to crack the ever-more-complicated disk copy >protection schemes that the software houses kept creating by way of being >able to control the disk circuitry from software. > >> > totally in the dark about). Case in point, Exidy Sorceror, I purchased >> > one and sent it to Sam Ismael, he is now looking for information, not >> > very many people ever seen one, much less an ad for one, sometimes the >> >> Somewhere I have a Techref for the Sorceror, and one for the S100 adapter >> for it. I also have some user group newsletters, etc. Feel free to pester >> me on this list if you want me to dig this stuff out. >> >> BTW, it's not up for grabs. I need it to maintain my Sorceror :-) > >Tony, any information you can e-mail me or send me concerning the >Sorcerer would be appreciated. I need information about the power >requirements, plus just general information such as how much RAM it came >with, processor type, built-in languages, etc. Thanks. > >Sam Hello there, I an fairly new here, but I am interested in all kinds of hardware and software hacks. Someone out there mentioned the 'sophistication' of the Apple ]['s video addressing, saying that the RAM refresh steals CPU cycles, Apples method is worse than a kludge, it was simply a crufted idea. yes, the Disk II is an elegent kludge,as ALL of my homebrewed electronic gear are kludges just to make them work!<G>. My first computer was a Commodore 64, and comparing it to apples(not oranges :0) the 64 is WAY more advanced, and it too shares a medium populated motherboard. I can do 90% of the multimedia stuff on the 64 as you can with a P-133! my point being, the Apple and 64 both had 6502 compatible proccessors, but the 6510 used by the 64 has smarter memory mangament, and it is fast enough to refresh the ram AND do sprite graphics AND use bit mapped memory. adding perhiperals to the 64 via the serial bus worked NICE, and I can prove history is repeating itself. Look at the new USB (Universal Serial Bus) standard, where they want to run evrything from keyboards, mice, modems etc... the Wintel croud calls it BRAND NEW IDEA, but we did this 10 years or more ago. I got a good taste of Apple's machines in school, and they were ok, but nothing I would ever try to own. the only drawback to the C=64 is that it did not have an expansion bus built in, however it did have a expansion connector which you can hook up a passive backplane to. I dont have much classic stuff but here is what I have: 3 CoCo's, one with 1 floppy drive, all 16K machines. the floppy drive as sold by radio shack is actually an IBM compatible 5.25 drive! the ONLY difference is an attempt by radio shack to foil anyone trying to USE off the shelf floppy drives by placing the ribbon connector on the opposite side, and because of this, the data cable was too short to connect the normal drive. But the controller card and pinouts are all the same IBM standard. The reason was that radio scrap wanted to charge you $400 for adding a drive that costed $50 max at the time. so IBM drives are not limited and can be used in any way, it just takes more hacker skill to implement it. 3 Commodore 64's, one is souped up with JiffyDOS, 1 meg REU, and 1.6 MEG floppy drive. 2 Commodore 128's both work and was extensively used, and because of this, they are on the verge of expiring... the keyboards on the 128's were never as durable as the 64's. 1 IBM XT works, but needs XT keyboard. 1 IBM 286-12, works too, and loaded with MORE TTL than the XT was.... Now the rest of the bunch are not classic, but I will place them here to make the list complete. 1 Acer 386-33, used as a file server 1 home built AMD 586 machine which is what I am composing this message from.

28 years, 9 months

C64 CP/M carts

by rector＠christcom.net

I was looking through a book I had picked up a year or so ago called "The Elementary Commodore 64". Towards the front amongst the description of various types of peripherals available for the C64 under the title "Other Gadgets" was this: Z-80 CP/M -- This cartridge goes right into the cartridge slot to turn your machine into a Z-80 base computer enabling you to access the vast array of CP/M software. With over 2000 CP/M software programs available, there is little you will not be able to access. Dan Rector

28 years, 9 months

C=1570 Drive (was Re:C64 CP/M carts)

by chemif＠mbox.queen.it

At 21:44 20/06/97 +0100, we wrote: >> >>>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 >> >>i own a 1570, its a american one with a step down transformer, Its >connected to my PC, and guess what, it writes CPM!!! >Steve >Emulator BBS >01284 760851 >Keeping 8-Bit ALIVE Hi Steve, Yours was the only one response I get (since now) from C=1570 owners Mine was made in Germany (did you buy it in the U.S.?) Ciao

28 years, 9 months

IBM PCjr

by thedm＠sunflower.com

A place in my location called surplus exchange, has about a dozen pcJR's on a skid. I didn't find any power supplies, but by the looks of the place, they could be anywhere. Let me know what to look for when I go back and I'll see if I can't rescue some more. (assuming the old lady lets me). I know the PC JR I bought, has a Parallell port on the outside, which I learned only today is a "Side-car". I have dozens of composite mono and color monitors from my apple// and Zenith collections. I also managed to scrounge out of this pile, [one] keyboard with cable, and [one] joystick and about 5 or 6 cartridges. The other PCjr,s seemed to be alone. Let me know what to look for on the CPU's and I can go through all of them one by one. If anyone else want's one, let me know and we can see what we can do. Last trip there I got a TI99/4a, atari 800, 1050 drive, 410 drive, Tandy COCO 1,. Commodore 1741 drive, Commodore mps 803 printer (I think) it works good. And an apple//+ for parts. I paid 35 for everything. I noticed this pallete of Jr's but I sure as heck didn't see any monitors, keyboards or power, except the one keyboard I did find elsewhere in the building. ---------- > From: jpero(a)mail.cgo.wave.ca > To: Discussion re-collecting of classic computers <classiccmp(a)u.washington.edu> > Subject: Re: IBM PCjr > Date: Monday, June 23, 1997 9:28 AM > > > > Welp, that rules out rigging one, thats beyond my techincal ability to > > fabricate. Anyone have an Extra for sale or trade? > They're underrated but you can just get one to keep orginals but I > could supply you a adapter for your own use with a PC power supply > box. This way, you can simply plug in and go? > > I do not know where to get these black transformer bricks. The > PCjr around here is rare as hen's teeth in my hometown. :) > Considering that, I was lucky to find it in standard configuration of > parallel port side car and the box but no cartidges! :( > > I also overheard that someone was trying to use TV with PCjr, you > missed something really needed: demodulator box or find a computer > compsite monitor which works better especially in 80 column mode. > Commorde color monitors is good picks for this. > > Jason D.

28 years, 9 months

Apple III+'s for sale

by jimw＠agora.rdrop.com

but *not* from me! Read carefully! Forwarded from comp.apple2.marketplace --- Begin forwarded message --- Date: Mon, 23 Jun 1997 05:22:35 -0600 From: HartranftR(a)nabisco.com Newsgroups: comp.sys.apple2.marketplace Subject: Apple III's for sale FYI ... I have 5 Apple ///'s for sale (improved re-release version), including original monitors. Some with 512K memory. Some peripherals also, including spare parts, Corvus 20 meg server with related Apple III interface cards. Would prefer selling at least computers/monitors in bulk and will consider any reasonable offers. I understand there are now thriving museums and actual user groups still utilizing. If NOT interested, would appreciate any leads for other possible contacts. These machines actually served us quite well ! Thanks Rich H -------------------==== Posted via Deja News ====----------------------- http://www.dejanews.com/ Search, Read, Post to Usenet --- end of forwarded message --- -jim --- jimw(a)agora.rdrop.com The Computer Garage - http://www.rdrop.com/~jimw Computer Garage Fax - (503) 646-0174

28 years, 9 months

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test-drb