test-drb October 1998

test-drb@ccmp.vtda.org

175 participants
1141 discussions

by KFergason＠aol.com

In a message dated 10/7/98 4:41:21 PM Pacific Daylight Time, allisonp(a)world.std.com writes: > Not a big secret. It's a fact and there is a jumper on the board for it. > > REASON: > At one point MOS Tech was going to make a 6500 that was pin interchangable > with the 6800 but moto took them to court. the expectation was they would > make one board that could be either 6800 or 6500. > I have read that they did make it, the 6501. And, moto took them to court, etc. Kelly

26 years, 2 months

Atari returns from the grave

by rax＠warbaby.com

http://www.milan-computer.de/html_gb/produkt.html -- Warbaby The WebSite. The Domain. The Empire. http://www.warbaby.com The MonkeyPool WebSite Content Development http://www.monkeypool.com Once you get the nose on, the rest is just makeup.

26 years, 2 months

Apple 1 6800/6502 (RE: kits, definitions, prices...)

by kaikal＠MICROSOFT.com

It's pretty clear if you look at the board. Note 7 in the Processor Section Schematic elaborates thus: "7. Unit, as supplied, includes a 6502 microprocessor, and solder jumpers at both points marked '6502', and has omitted all components shown within the dotted box. If a 6800 is substituted for the 6502 it is necessary to install all components shown, and to break both solder bridges labeled '6502'." The "dotted box" refers to a normally unpopulated area of the board. The components shown within the "dotted box" are just 4 transistors and a handful of resistors and caps. Remember that the 6502 was largely an electrical clone of the 6800 with a different instruction set. Obviously the supplied monitor ROMs wouldn't have run on the 6800, but the monitor source is supplied and could be translated. Kai -----Original Message----- From: Doug Yowza [mailto:yowza@yowza.com] Sent: Wednesday, October 07, 1998 3:27 PM To: Discussion re-collecting of classic computers Subject: RE: kits, definitions, prices... On Wed, 7 Oct 1998, Kai Kaltenbach wrote: > Little-known fact: The Apple 1 wasn't a 6502 machine... it was a 6502 OR > 6800 machine. That is *very* little-known! Either somebody got sold a 6800 machine with an Apple 1 label on it or there needs to be some documentation for this claim! References? -- Doug

26 years, 2 months

Gemini Galaxy 2 - It works

by ard＠p850ug1.demon.co.uk

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26 years, 2 months

The PDP lives! To the best of my (limited) knowledge, anyway...

by allisonp＠world.std.com

< Is there a user group or something akin that I could contact to purchas < RT-11 on 8" floppy? When I flip the "boot" switch, it accesses drive "0 < so I assume it's looking for the OS. The @ is the ODT prompt. If you type a / that prints the contents of the current address and if you enter a number it will replace it. @$n (n=0 to 7) prints a regiters contents and can alter it. @1773000G Start executing at 773000 (octal!) That address is commonly the address of rom bootstraps. RT-11 is available on the net at... ftp://gatekeeper.dec.com/pub/digital/sim/software/rtv53swre.tar.Z That is a unix gziped tar file of RT-11 V5.3. If you find it on media you are permitted to use it as a hobbiest. Allison

26 years, 2 months

Latest finds

by wanderer＠bos.nl

Well, let's see. I got the kit for 50 guilders ($25), which is not a bad price if you ask me for such a near complete kit. As for the moment, I don't have a picture yet, but I could scan a picture from one of the manuals. Unfortunately it's not fore sale, but if someone want's to exchange it for a KIM-1, I could be tempted, or somewone would like to pay me mega $$$$ (maybe someone at eBay :-) ) Some more info about the board, it's labelled PWB 10010505 Rev C and has a copyright of 1976. The manuals have various dates, they are : Product Description book, dated January 1979, Assambly Language Reference Card, dated March 1979, MCS-80/85 Family User's Manual, dated October 1979, 8080/8085 Assembly Language Programming Manual dated 1977,1978, 197 SDK-85 System Design Kit User's Manual, dated 1978 Regards, Ed BTW, the guy who sold this also had 3 handheld terminals sets which doe work on CP/M. He also had 3 matching printers, 2 software development kits for the PC (has a Z80 processor on an ISA board), and 1 docking station. Apparently these sets were used f.e. as barcode readers, as the terminal could be equipped with a optical pen. -- The Wanderer | Geloof nooit een politicus! wanderer(a)bos.nl | Europarlementariers: http://www.bos.nl/homes/wanderer | zakkenvullers en dumpplaats voor Unix Lives! windows95 is rommel! | mislukte politici. '96 GSXR 1100R | See http://www.bos.nl/homes/wanderer/gates.html for a funny pic. of Gates!

26 years, 2 months

Eventual fate of our machines

by franke＠sbs.de

> Phase one: Active procurement (Present state) > My collection currently exists in a very unorganized state in my > basement. I have no real inventory list. :) > Phase two: Active display > Fully inventoried with a list of what works and what doesn't. > We've discussed the possiblity of setting up some sort of cybercafe to > help pay for maintaining the collection. Good idea - I have to mark your place for my next visit. Surfing on an Altair ... > Phase three: Finding the collection a new home (After I'm gone) > This is the tough one. In the wrong hands the collection might > just go to a landfill and that would be a real shame. I have no kids so > there is no one to carry on the tradition. I shudder to think about the > eventual fate of all of our collections. Do we need a national repository > for all of this stuff? National Repository ? Like a landfill at Mt. Rushmore ? Serious: I think it's a) mor than just a 'national' issue, and b) giving your legacy to any kind of 'big' museum / collection wouldn't be better than auctioning every single piece for maximum profit (for the heir). Let me explane the last one. At first, a 'big' collection, like a museum (and I just assume there will be in the future some computer museums at least the size of car collections) will have already more than 95% of your (or mine) collection, counting the CPU's, so they only need 5% for display. The rest will be surplus or spare parts in best case. Second, they will have, for shure, already more computers and accessories than they are able to display. So yours might never be seen again autside the warehouse. Third, (and most important in my eyes) 99% of all of the hard to get software and documentation will never go on display And last but not least, even if one of your computers get on display, they might refurbisch in a way you would never liked - removing stickers, that you saved as a sign of Zeitgeist of this machine, or even canibalise it for display. For example: The Deutsches Museum in Munich has a quite astonishing collection of old machinery on display, but compared to what they have in storeage, it's like showing a Apple Mac Plus as a representiv for everything Apple produced - from Apple 1 until Newton ... - Even for old Computers: they have a quite impressive collection of uP based Computers, but just an PET and an IBM-PC on display (within more than 5000 sq ft computer display). (To be honest, every of the things above can happen also with smaler collectors, but I think they are more likely for big collections/mueseum.) Personal I have not decided what to do with my collection (althrugh I alredy have a last will where several persons are picked to get some parts or to be responsible for the distribution). Possible ways where I feel comfortable are: a) Let 'em all on auction after my death for maximum money. b) Pick people for every parst to inherit to. c) sell them among fellow collectors for their real value. That means for example 100 USD for a C65 or a chicklet PET. d) If I ever will archive my own museum, building a base, where inheritance is no question, because it exists on it's own behalf. The idea behind b) and c) is just to give them to people who don't want them pure for the market (ePay) value, but for the thing itself. c) has an advantage, because I belive buying is better than getting a gift. In fact, if I haggle for an Apple 1 at 100 USD it's more fun than getting the computer for free (dont get me wrong - I wouldn't deny any free computer :). Gruss H. -- Ich denke, also bin ich, also gut HRK

26 years, 2 months

Corrections to trivia

by allisonp＠world.std.com

< What about... < ...the KIM-1? (1976, 6502) < ...the JOLT? (1975, 6502) < ...the COSMAC ELF? (1975) < ...the SWTPc 6800? (1975, 6800) The cosmac elf was the august 1976 cover of Popular Electronics. The key here was the 8080 predates the Altair by over a year but within 1 year of the 8080 introduction there would be a slew of new CPUs many lower cost. The 6502 was the knee breaker! After that there would be the COSMAC-1802, SC/MP, and a truckload of others. < > this fact if, say, TI engineers had actually produced a microprocesso < > before Intel. The important "firsts" in documenting the personal comp < > revolution are commercialization, availability, and price. < < That certainly doesn't tell the whole story. The only thing this type o < historical "documentation" serves is a company's marketing efforts. They did in essence, TI brought us the calculator chip before intel with the 4004. The difference that is significant is the same number of gates were applied as a generalized programable system... That was important. The however is that TI1000 was the same time nearly. < imposed on the product. The CADC shows that much more was possible tha < was previously believed for that early era in microprocessor history. < That's significant, and relevant. The CADC also attacked the specialized vs programmable before intel. < I don't think chapters need to be re-written either. A whole NEW chapte < needs to be added.

26 years, 2 months

Corrections to trivia

by allisonp＠world.std.com

< Yes, I would like to find a "Intellec 8", I think the same as a MCS-8, t < (Intel seems to use the term "MCS-8" very loosely in the literature I ha < There was also a single board computer, Sim8-01 with 2k bytes EPROM and < byte ram. It could be used with a MP7 EPROM (1702A) programmer. MCS-8 is the SIM8-01, I still have the manual for it. Allison

26 years, 2 months

Top 10 sins of a computer scrapper

by allisonp＠world.std.com

< Where were you guys 4 years ago? I'm really sorry for my part.It is real < hard to figure out what is collectable, particularly if you don't recogn Here in MA doing what I do now. I collect stuff I've used to would like to have but couldn't afford back then. Much of it is pseudo collectable, IE: I collect it but that does not assume it has any value other than I'd like to set it up and actually run it. Allison

26 years, 2 months

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test-drb October 1998