- test-drb@ccmp.vtda.org - classiccmp.org

by grant＠stockly.com

At 04:55 AM 12/16/2008, you wrote: > > The 1101 256 byte static ram. > >No, not this either. > >Hard to find, these 1101s, but not impossible. Bought 200 of those from unicorn for $2 each. If I were mean and fought with Rob I could probably get lower prices...but he treats me good. ; ) They charge the same amount for the Altair 1MCS memory chips, 2101 or 2102s, I forget...

17 years, 8 months

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0
0 0

8008 chips

by wbblair3＠yahoo.com

> A friend of mine just came across a couple of Intel 8008 > chips. Apparently, some ebay sellers think they're solid gold. > > http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=260099837541 > > As far as we can tell, that's what Mel has. > > Anyway, I told him I'd try to find out what it's > actually worth and whether anyone here is willing > to pay whatever's reasonable. > > He also has some later 8008s without the gold cap. They are relatively rare, but they aren't even close to being _THAT_ rare. I'm talking about his asking price. I bought one three years ago from a fellow collector of CPU chips for _$20_ that had some markings worn off and was scratched. I opened it up to photograph the die (a hobby of mine): http://diephotos.blogspot.com/ I've haven't even seen rare versions of white ceramic 4004 ICs in perfect condition go for anything close to his asking price. I've seen a complete, mint condition MCS-4 (4004) chip _SET_ go for something close to $1K.

17 years, 8 months

3
2
0 0

AW: cctalk Digest, Vol 64, Issue 52; any idea what this schematic is?

by gerhard.kreuzer＠liftoff.at

Hi, Ist definitely a RS422 interface, and ist the 4-wire version. You have two lines for sending data (Tx+, Tx-) and two lines for receiving serial data (Rx+, Rx-). Its a +-5V differentially signalling technique to get high speed on long lines and archive better noise immunity. With best regards Gerhard -----Urspr?ngliche Nachricht----- Von: cctalk-bounces at classiccmp.org [mailto:cctalk-bounces at classiccmp.org] Im Auftrag von cctalk-request at classiccmp.org Gesendet: Sonntag, 21. Dezember 2008 19:01 An: cctalk at classiccmp.org Betreff: cctalk Digest, Vol 64, Issue 52 Send cctalk mailing list submissions to cctalk at classiccmp.org To subscribe or unsubscribe via the World Wide Web, visit http://www.classiccmp.org/mailman/listinfo/cctalk or, via email, send a message with subject or body 'help' to cctalk-request at classiccmp.org You can reach the person managing the list at cctalk-owner at classiccmp.org When replying, please edit your Subject line so it is more specific than "Re: Contents of cctalk digest..." Today's Topics: 1. Re: PDP-8 on FPGA project & where is Hans Pufal? (Pete Turnbull) 2. Re: PDP-8 on FPGA project & where is Hans Pufal? (Tony Duell) 3. Re: Timekeeping (was Re: Sherwood Micro CPU/100) (Tony Duell) 4. Re: Timekeeping (was Re: Sherwood Micro CPU/100) (Tony Duell) 5. New USB Mod Ms available from Unicomp? was Re: USB Model M (Paxton Hoag) 6. CBM 8000 VideoCD? (Ethan Dicks) 7. list of nordisk data books and floppy disks (Bert Thomas) 8. Re: Engelbart's mouse / 40th anniversary (Andrew Burton) 9. oregon software tape (Al Kossow) 10. Re: 8008 chips (Andrew Burton) 11. any idea what this schematic is? (Ray Arachelian) 12. RE: oregon software tape (Ian King) 13. MS WinWord 6.0 32-bit (Liam Proven) 14. Re: PDP-8 on FPGA project (Philipp Hachtmann) 15. Re: any idea what this schematic is? (Gordon JC Pearce MM3YEQ) 16. RE: any idea what this schematic is? (dwight elvey) 17. Re: any idea what this schematic is? (Ethan Dicks) 18. Re: Rockwell PPS-4 info (was 8008 v. 4004...) (John Robertson) 19. Re: Rockwell PPS-4 info (was 8008 v. 4004...) (Chris Elmquist) 20. Re: USB Model M (G?ran Axelsson) 21. FDOS for Fluke 1720A (Jim Temple) 22. Re: any idea what this schematic is? (Ethan Dicks) 23. Re: Engelbart's mouse / 40th anniversary (Lyle Bickley) 24. Re: any idea what this schematic is? (Alexandre Souza) 25. Re: any idea what this schematic is? (r.stricklin) ---------------------------------------------------------------------- Message: 1 Date: Sat, 20 Dec 2008 17:55:58 +0000 From: Pete Turnbull <pete at dunnington.plus.com> Subject: Re: PDP-8 on FPGA project & where is Hans Pufal? To: General Discussion: On-Topic and Off-Topic Posts <cctalk at classiccmp.org> Message-ID: <494D31AE.8010306 at dunnington.plus.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed On 19/12/2008 15:53, der Mouse wrote: >> Your code above does not result in latches. It results in D type >> flipflops! > > What's the difference? As I've learned to use the words, D-flops > _are_ latches. Have I mislearnt? They're not quite the same thing, though a D-type flip-flop is a kind of latch. There are other types of flip-flops, such as T, RS, and JK types, usually edge-triggered. In a D-type, the active clock edge causes the output to change to match the input, and having changed, it stays that way, even if the input changes while the clock is still at the same level. The transparent latches that are commonly just referred to as "latches" (eg in data books, where you'll find some devices referred to as latches and others as flip-flops to distinguish them) are level-sensitive, and the output tracks the input (including changes) while the clock is at its active level. -- Pete Peter Turnbull Network Manager University of York ------------------------------ Message: 2 Date: Sat, 20 Dec 2008 18:10:04 +0000 (GMT) From: ard at p850ug1.demon.co.uk (Tony Duell) Subject: Re: PDP-8 on FPGA project & where is Hans Pufal? To: cctalk at classiccmp.org Message-ID: <m1LE6H9-000IxyC at p850ug1> Content-Type: text/plain > > Your code above does not result in latches. It results in D type > > flipflops! > > What's the difference? As I've learned to use the words, D-flops > _are_ latches. Have I mislearnt? As I understand the terms, a D-type flip-flop is edge-triggered, a latch (or more exactly a transparent latch) is level-operated. What I eman is that for a D-type flip-flop, the output (Q) is set equal to the input (D) a short time after the rising edge (say), of the clock signal. At all othter times Q does not change state, no matter what D does. So if clock is held high all the time, or held low all the time, Q will never change. But with a transparent latch, then if the clock (sometimes called the enable input) is in one sate (say high). then the output (Q) tracks the input (D). When the clock input goes low, then Q is held in whatever state it was in as the clock input went low. A simple example of the differnce. If you take a D-type flip-flop and connect the output to a NOT gate and the output of that back to the D input, then you get a divide-by-2-circuit. Feed in a regular clock at one frequency and the Q output will toggle at half that frequency. But if you do the same thing with a transparent latch, you get something that oscillates at a frequency determined by the propagation delays when the clock is high. In other words the output is somewhat unpredicatable, it's certainly not a square wave at half the frequency of the clock signal. -tony ------------------------------ Message: 3 Date: Sat, 20 Dec 2008 18:12:55 +0000 (GMT) From: ard at p850ug1.demon.co.uk (Tony Duell) Subject: Re: Timekeeping (was Re: Sherwood Micro CPU/100) To: cctalk at classiccmp.org Message-ID: <m1LE6Jt-000J12C at p850ug1> Content-Type: text/plain > Hi > You should also consider building a free pendulum clock reference. If I ever get a supply of circular tuits, then that's something I have long considered making... Even a single-pendulum (non-free) synchronome would be a fun thing to build > I've considered adding one to my grandfather clock. > These were used as references until the quartz oven references > replaced them. I am told that a free paenddulum in a vacuum chamber (to remove the errors due to air resistance, often called 'barometric errors', since the air resistance depends on the barometric pressure) actually has a better long-term stability than most quartz crystals. -tony ------------------------------ Message: 4 Date: Sat, 20 Dec 2008 18:16:07 +0000 (GMT) From: ard at p850ug1.demon.co.uk (Tony Duell) Subject: Re: Timekeeping (was Re: Sherwood Micro CPU/100) To: cctalk at classiccmp.org Message-ID: <m1LE6N0-000J1gC at p850ug1> Content-Type: text/plain > One can calculate the angles if you first draw a line for local noon > and use the following equation to calculate each hour line from that > noon line. > =20 > X = hour lines angle ( each hour is 15 degrees ) Y = 90 - Latitude > angle Called the 'Colatitude' in some books. > Z = Angle on plate that is level to the ground from noon line > > arctan( tan(X) / cos ( Y ) ) = Z > > At least I think I did the trig right.=20 I beleive that is correct, However, it gets more complicated if you want to have a vertical-ish dial plate (say on a wall) that is neither truely vertical (it 'reclines') and which doesn't face any of the cardinal compass directions (it 'declines'). -tony ------------------------------ Message: 5 Date: Sat, 20 Dec 2008 13:10:33 -0800 From: "Paxton Hoag" <innfoclassics at gmail.com> Subject: New USB Mod Ms available from Unicomp? was Re: USB Model M To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk at classiccmp.org> Message-ID: <ded268c40812201310p460cd9c8v494ffd0e2de9cd9b at mail.gmail.com> Content-Type: text/plain; charset=ISO-8859-1 > Right here: http://pckeyboards.stores.yahoo.net/cabdetmin.html > Thanks for the link as I need some cables too. I bought a dozen Model Ms >from a local community college garage sale. They were complaining about how much noise they made. At 50 cents apiece I bought all they had. I noticed that Unicomp, the site mentioned above sells new Buckling Key keyboards With USB built in for $69. http://pckeyboards.stores.yahoo.net/cus101usenon.html These are the people that bought the Keyboard parts business from IBM. It looks like they are trying to keep the model M and continue to supply the market. Paxton -- Paxton Hoag Astoria, OR USA ------------------------------ Message: 6 Date: Sat, 20 Dec 2008 17:48:18 -0500 From: "Ethan Dicks" <ethan.dicks at gmail.com> Subject: CBM 8000 VideoCD? To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk at classiccmp.org> Message-ID: <f4eb766f0812201448k53b19a99g664320f673290d44 at mail.gmail.com> Content-Type: text/plain; charset=ISO-8859-1 Hi, all, I was bouncing around looking for SuperPET info and ran across this page (again)... <http://members.tripod.com/~petlibrary/vcdpage.htm> Unfortunately, the address on the page is no longer active, so it's not possible to request a copy of the video. Did anyone on the list ever get this? -ethan ------------------------------ Message: 7 Date: Sun, 21 Dec 2008 00:12:18 +0100 From: Bert Thomas <bert at brothom.nl> Subject: list of nordisk data books and floppy disks To: General at lekkervaren.nl, "Discussion at lekkervaren.nl":On-Topic and Off-Topic Posts <cctalk at classiccmp.org> Message-ID: <494D7BD2.3000108 at brothom.nl> Content-Type: text/plain; charset=ISO-8859-1; format=flowed If you need access to one of these, contact me an urge me to make a deal. Keep pushing, as pushing raises priority with me. Books: NOTIS-BG User Guide NOTIS-RG New functions in the E-version NOTIS-DS User's guide Introduction to ND Office Systems The SPRINT User Guide Documentation Catalogue SINTRAN III Real Time Loader Dialogue-UNIQUE-II User Guide Operator Environment User Guide NOTIS-WP Brief Introduction User Environment Reference Manual NOTIS-WP Reference Manual COSMOS User Guide User Environment Reference Manual SINTRAN III Utilities Manual (3x) ND-110 Instruction Set The Database System SIBAS II ND User Manual SIBAS II Operator Manual NOTIS-DS Introduction (2x) Sintran III Real Time Guide NOTIS-DS Supervisor Guide (2x) ACCESS User Guide File Manager Introduction (2x, one in shrink-wrap) NOMIS Norwegian Medical Information System SINTRAN III COMMANDS Reference Manual SINTRAN III Monitor Calls (2x) Symbolic Debugger User Guide Examples for NOTIS-RG Version B SINTRAN-III Release Information K-version NOTIS-TF Macro Guide (new in shrink wrap) BACKUP User Guide (3x) SINTRAN III System Supervisor Operator Environment User Guide ND-110 COMPACT Operator Guide (contains several quick reference cards) SINTRAN III User Guide BRF-Linker User Manual NOTIS-TF User Guide User Environment Library Routines NOTIS-RG Reference Manual Test Program Description for ND-100/ND-110 ordner with following description: course program the supervisor's responsibility Handbook of Useful information examples of LOAD-MODE etc. telefix customer information miscellaneous materials MEDITEBS (in dutch) bunch of unknown listings a document with information on SCSI on ND ACCESS DBA manual NOTIS-TF text formatter reference manual partly dutch presentation with general user info SINTRAN III Timesharing/Batch guide some dutch documentation on MEDITEBS datasheets of several ND products, such as software packages, computers and accessoiries Floppies: (each floppy or set of floppies contains a few pages of information) SINTRAN III K GENERATION 312 CONF.D VSX, 2 disks (2 sets) PATCH-SIN-K-5400 (2 sets) SINTRAN III Configuration Program SUBSYSTEM PACKAGE 32 BITS FLOATING FORMAT SINTRAN III VSE/VSX Utility Programs ACCOUNTING System for SINTRAN III BACKUP-SYSTEM X-MESSAGE TELEFIX FILES FOR USER SITES SUBSYSTEM PACKAGE II VTM terminal tables USER ENVIRONMENT (3 disks) TEST PROGRAMS FOR ND-100/110 TEST PROGRAMS FOR ND-100/110/120 (2 disks) JEC job execution control ND-10634A MEMORY TO FLOPPY NOTIS-WP FOR ND-100 (4 disks) SIBAS-II for ND-100 (2 disks with pretty much the same label) ACCESS FOR ND-100 (dito) NOTIS-RG for ND-100 norwegian NOTIS-DS for ND-100 (3 disks) NOTIS-DS for ND-100 48-bit floating point (3 disks with pretty much the same label) NOTIS-BG-for ND-100 norwegian version 32 bits fl NOTIS-BG-for ND-100 32 bits fl NOTIS-BG-for ND-100 (business grafics) 32 bits fl PR for ND-100 (Norwegian version) BRF-Linker for ND-100 SINTRAN III MONITOR CALL Pack. SPRINT Spooling System (3 disks) MEDITEBS specials Mass Storage Utilities OPERATOR ENVIRONMENT (4 disks) Disk Restore (3 disks) TESTPROGRAMS FOR ND-100/110/120 (2 disks, both labeled PART 1 OF 2) UNIQUE-II SIBAS for ND-100 UNIQUE TEXT SYSTEM UNIQUE-II SIBAS ND-100 (hand-written label) SOFTWARE KEY DISCETTE ------------------------------ Message: 8 Date: Sat, 20 Dec 2008 23:22:17 +0000 (GMT) From: Andrew Burton <aliensrcooluk at yahoo.co.uk> Subject: Re: Engelbart's mouse / 40th anniversary To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk at classiccmp.org> Message-ID: <567206.77758.qm at web23406.mail.ird.yahoo.com> Content-Type: text/plain; charset=utf-8 Thanks for the photo's. That must have been an interesting event. Regards, Andrew B aliensrcooluk at yahoo.co.uk --- On Sun, 14/12/08, Marcin Wichary <mwichary at gmail.com> wrote: From: Marcin Wichary <mwichary at gmail.com> Subject: Re: Engelbart's mouse / 40th anniversary To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk at classiccmp.org> Date: Sunday, 14 December, 2008, 9:24 PM Here are my photos from the event, for those interested: http://flickriver.com/photos/mwichary/sets/72157610918709769/ (48 photos in total. Scroll down to see more.) ------------------------------ Message: 9 Date: Sat, 20 Dec 2008 16:15:00 -0800 From: Al Kossow <aek at bitsavers.org> Subject: oregon software tape To: classiccmp at classiccmp.org Message-ID: <494D8A84.8080002 at bitsavers.org> Content-Type: text/plain; charset=ISO-8859-1; format=flowed did anyone on the list buy this tape? http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=120348714966 I got the earlier version, and it is a source tape. I'm trying to find out if the other one was as well. fscking eBay now hides the buyer's ID. ------------------------------ Message: 10 Date: Sun, 21 Dec 2008 02:17:52 +0000 (GMT) From: Andrew Burton <aliensrcooluk at yahoo.co.uk> Subject: Re: 8008 chips To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk at classiccmp.org> Message-ID: <346678.75570.qm at web23407.mail.ird.yahoo.com> Content-Type: text/plain; charset=utf-8 Awesome pictures. It's seriously impressive how these chips must be made and designed. Regards, Andrew B aliensrcooluk at yahoo.co.uk --- On Tue, 16/12/08, William Blair <wbblair3 at yahoo.com> wrote: They are relatively rare, but they aren't even close to being _THAT_ rare. I'm talking about his asking price. I bought one three years ago from a fellow collector of CPU chips for _$20_ that had some markings worn off and was scratched. I opened it up to photograph the die (a hobby of mine): http://diephotos.blogspot.com/ I've haven't even seen rare versions of white ceramic 4004 ICs in perfect condition go for anything close to his asking price. I've seen a complete, mint condition MCS-4 (4004) chip _SET_ go for something close to $1K. ------------------------------ Message: 11 Date: Sat, 20 Dec 2008 22:01:22 -0500 From: Ray Arachelian <ray at arachelian.com> Subject: any idea what this schematic is? To: General Discussion: On-Topic and Off-Topic Posts <cctalk at classiccmp.org> Message-ID: <494DB182.1050106 at arachelian.com> Content-Type: text/plain; charset=ISO-8859-1 http://flickr.com/photos/spaceageboy/3117272956/sizes/o/ Would this be the interface between the Lisa and the Mac as related here: http://folklore.org/StoryView.py?project=Macintosh&story=Shut_Up.txt&sortOrd er=Sort%20by%20Date&detail=medium&search=shut%20up > Unfortunately, there was one small snag. We were using the Lisa as the > development machine for writing the software for Macintosh, and we > hadn't yet reached the point where the Macintosh could run > stand-alone. The Macintosh needed to be hooked up to a Lisa, in order > to download software from it. But the Lisa group was writing all of > its own applications for Lisa and didn't want Microsoft to see a Lisa. > They made us promise that we wouldn't let Microsoft see the Lisa. > > We finally came up with a solution where we'd use a twenty-five foot > cable and keep the Lisa in a different room that the Microsoft guys > weren't allowed to enter. I would start up the programs on the Lisa in > the other room, and Bud Tribble would operate the Macintosh. I would > usually run into the main room to see their reaction. ------------------------------ Message: 12 Date: Sat, 20 Dec 2008 19:24:43 -0800 From: Ian King <IanK at vulcan.com> Subject: RE: oregon software tape To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk at classiccmp.org> Message-ID: <FF6AB92D97A23A409701CDBF66F03FCD2A56ED9D at 505fuji> Content-Type: text/plain; charset="us-ascii" eBay's greed will destroy its empire. At least, it's always worked that way before.... ________________________________________ From: cctalk-bounces at classiccmp.org [cctalk-bounces at classiccmp.org] On Behalf Of Al Kossow [aek at bitsavers.org] Sent: Saturday, December 20, 2008 4:15 PM To: classiccmp at classiccmp.org Subject: oregon software tape did anyone on the list buy this tape? http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=120348714966 I got the earlier version, and it is a source tape. I'm trying to find out if the other one was as well. fscking eBay now hides the buyer's ID. ------------------------------ Message: 13 Date: Sun, 21 Dec 2008 04:33:35 +0000 From: "Liam Proven" <lproven at gmail.com> Subject: MS WinWord 6.0 32-bit To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk at classiccmp.org> Message-ID: <575131af0812202033o14e4e811r2071a9316e71d48f at mail.gmail.com> Content-Type: text/plain; charset=WINDOWS-1252 This is somewhat off-topic for here, but I don't know where else to ask. Way back in the early days of 32-bit Windows - I know, 5min ago by local standards - MS did a 32-bit version of Word and Excel for users of MS Office 4 on Windows NT 3. I used to have copies - on floppy - but I've lost them. No idea where to get replacements now, but I would really like to be able to use Word 6/32 again. It was a great WP, and by modern standards, tiny and very fast. Anyone still have a copy, or can suggest where to look or ask? -- Liam Proven Profile: http://www.linkedin.com/in/liamproven Email: lproven at cix.co.uk GMail/GoogleTalk/Orkut: lproven at gmail.com Tel: +44 20-8685-0498 Cell: +44 7939-087884 Fax: + 44 870-9151419 AOL/AIM/iChat: liamproven at aol.com MSN/Messenger: lproven at hotmail.com Yahoo: liamproven at yahoo.co.uk Skype: liamproven ICQ: 73187508 ------------------------------ Message: 14 Date: Sun, 21 Dec 2008 05:43:55 +0100 From: Philipp Hachtmann <hachti at hachti.de> Subject: Re: PDP-8 on FPGA project To: General Discussion: On-Topic and Off-Topic Posts <cctalk at classiccmp.org> Message-ID: <494DC98B.2070108 at hachti.de> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Hi, >>> You can emulate that in std_logic with a single driver driving an "H" >>> (the "pull-up"), and everyone else drives either "0" or "Z". >> Yes. You can write that. But the synthesis tool - if it eats that - >> will generate >> many ORs... So avoid it. In the company I have worked a bit for, MANY >> constructs >> were simply forbidden. Thinks like Z, H, L in std_logic are suspicious >> :-) > > What you say is true for FPGA-internal signals but the output drivers > _can_ be switched to high-impedance. > The open-collector driver you were asking about originally can be > emulated by assigning "Z" directly to the IOB, switching it to high-z. > That will only work if the signal you use is routed directly to the IOB > => use only in top level entity to be sure. Yes, of course... IOBs can also be controlled "manually" using the output enable... The discussion was about the on-chip (!!) wiring of the OMNIBUS. the original OMNIBUS is an open collector thing. Ph :-) -- http://www.hachti.de ------------------------------ Message: 15 Date: Sun, 21 Dec 2008 06:00:30 +0000 From: Gordon JC Pearce MM3YEQ <gordonjcp at gjcp.net> Subject: Re: any idea what this schematic is? To: General Discussion: On-Topic and Off-Topic Posts <cctalk at classiccmp.org> Message-ID: <494DDB7E.8070901 at gjcp.net> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Ray Arachelian wrote: > http://flickr.com/photos/spaceageboy/3117272956/sizes/o/ It's a serial port. > Would this be the interface between the Lisa and the Mac as related here: > > http://folklore.org/StoryView.py?project=Macintosh&story=Shut_Up.txt&sortOrd er=Sort%20by%20Date&detail=medium&search=shut%20up Hmm, the 1981 date suggests that it would a bit early for the Mac, and the layout of the PCB suggests an Apple II card... Gordon ------------------------------ Message: 16 Date: Sat, 20 Dec 2008 22:42:28 -0800 From: dwight elvey <dkelvey at hotmail.com> Subject: RE: any idea what this schematic is? To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk at classiccmp.org> Message-ID: <COL107-W372B6A51D022349E27EB43A3EE0 at phx.gbl> Content-Type: text/plain; charset="iso-8859-1" Hi Looks like RS422 interface. Dwight ---------------------------------------- > Date: Sat, 20 Dec 2008 22:01:22 -0500 > From: ray at arachelian.com > To: > Subject: any idea what this schematic is? > > http://flickr.com/photos/spaceageboy/3117272956/sizes/o/ > > Would this be the interface between the Lisa and the Mac as related here: > > http://folklore.org/StoryView.py?project=Macintosh&story=Shut_Up.txt&sortOrd er=Sort%20by%20Date&detail=medium&search=shut%20up > >> Unfortunately, there was one small snag. We were using the Lisa as the >> development machine for writing the software for Macintosh, and we >> hadn't yet reached the point where the Macintosh could run >> stand-alone. The Macintosh needed to be hooked up to a Lisa, in order >> to download software from it. But the Lisa group was writing all of >> its own applications for Lisa and didn't want Microsoft to see a Lisa. >> They made us promise that we wouldn't let Microsoft see the Lisa. >> >> We finally came up with a solution where we'd use a twenty-five foot >> cable and keep the Lisa in a different room that the Microsoft guys >> weren't allowed to enter. I would start up the programs on the Lisa in >> the other room, and Bud Tribble would operate the Macintosh. I would >> usually run into the main room to see their reaction. > _________________________________________________________________ Send e-mail faster without improving your typing skills. http://windowslive.com/online/hotmail?ocid=TXT_TAGLM_WL_hotmail_acq_speed_12 2008 ------------------------------ Message: 17 Date: Sun, 21 Dec 2008 01:53:00 -0500 From: "Ethan Dicks" <ethan.dicks at gmail.com> Subject: Re: any idea what this schematic is? To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk at classiccmp.org> Message-ID: <f4eb766f0812202253w17bc738ax5777071e99444f6b at mail.gmail.com> Content-Type: text/plain; charset=ISO-8859-1 On Sun, Dec 21, 2008 at 1:42 AM, dwight elvey <dkelvey at hotmail.com> wrote: > > Hi > Looks like RS422 interface. > >> From: ray at arachelian.com >> >> http://flickr.com/photos/spaceageboy/3117272956/sizes/o/ >> >> Would this be the interface between the Lisa and the Mac as related here: >> >> <http://folklore.org/StoryView.py?project=Macintosh&story=Shut_Up.txt&sortOr der=Sort%20by%20Date&detail=medium&search=shut%20up> I don't know what the bus in the Lisa looks like, but the interface end, the bit that Dwight identifies as an "RS422 interface" will hook right up to a Mac (but I'd have to check to see if their DE-9 pinout matches the DE-9 serial pinout of the 128K/512K Mac board). The "Lisa-Mac Interface Card" legend at the top certainly suggests that it's a schematic for the card from the story. The circuit appears to be what one would need to add a Mac-compatible serial port to _some_ machine. -ethan ------------------------------ Message: 18 Date: Sat, 20 Dec 2008 09:43:24 -0800 From: John Robertson <jrr at flippers.com> Subject: Re: Rockwell PPS-4 info (was 8008 v. 4004...) To: General at invalid.domain, "Discussion at invalid.domain":On-Topic Posts Only <cctech at classiccmp.org> Message-ID: <494D2EBC.6080609 at flippers.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Tim McNerney wrote: > Thanks for the lead on the Rockwell PPS-4. > Does anyone know where I can find architectural info on it, > and/or a die photo? It seems to be quite rare, and there > is almost no information about this chip [family] on the web. > > --Tim > > I have information in PDF format for the PPS-4 as used in Gottlieb and Recel Pinball games in the 70s. This covers the CPU, PIA and Keyboard chips. No architectural or die photos though. John :-#)# ------------------------------ Message: 19 Date: Sat, 20 Dec 2008 12:54:18 -0600 From: Chris Elmquist <chrise at pobox.com> Subject: Re: Rockwell PPS-4 info (was 8008 v. 4004...) To: On-Topic and Off-Topic Posts <cctalk at classiccmp.org> Message-ID: <20081220185418.GH31448 at n0jcf.net> Content-Type: text/plain; charset=us-ascii On Saturday (12/20/2008 at 08:48AM -0700), bfranchuk at jetnet.ab.ca wrote: > Chris Elmquist wrote: > >> Sorry, I got the year wrong. It was approx 1978. Less cool then but still >> not bad. Meatloaf was still bad. > > Umm you don't wait several years to eat Meatloaf. This one you would have wanted to. Imagine a pale grey colored ring about 10" dia with 3" dia hole in the middle. Wasn't a browned bit of meat on it and not enough ketchup in the world to make it go down. I think we learned then that a microwave is not for "browning". -- Chris Elmquist mailto:chrise at pobox.com ------------------------------ Message: 20 Date: Sun, 21 Dec 2008 00:29:42 +0100 From: G?ran Axelsson <axelsson at acc.umu.se> Subject: Re: USB Model M To: General at acc.umu.se, "Discussion at acc.umu.se":On-Topic Posts Only <cctech at classiccmp.org> Message-ID: <494D7FE6.1090008 at acc.umu.se> Content-Type: text/plain; charset=ISO-8859-15; format=flowed Alexandre Souza wrote: >> I have a small uC device that I made that uses an FTDI USB->TTL >> converter. I wish USB was as straight-forward as you describe. I'm >> currently running into problems when transferring, very quickly, some >> data from the uC to the PC. The problems are related to overrunning >> the PC, where the PC isn't scheduling reads from the device fast >> enough to prevent drops. At least interrupt-based I/O can "demand" >> attention from the cpu at any time, where USB is at the mercy of >> being scheduled. > > I do that at 921kbps and had no issues. I have just finished a project with a PIC32 (MIPS32 core) working as a voice codec and talking to a linux PC over the USB buss. We got it up to 310 kBytes/s and not dropping a single package during hours of running. The communication on the PIC side is solved by constantly polling the USB bus to catch every event. We had problems with package dropped every ten seconds or so but we traced it back to a iproute cache flush that the kernel was doing. The USB bus is fast but with standard hardware it isn't hard to get the speed up. If you have problem with overruns, check if the PC is doing some periodic maintainancy or there are any other devices using the bus. Sorry for being a bit OT but just to add a bit of nostalgia to my post, my next hobby project will be a transputer link to USB interface. :-) /Gvran ------------------------------ Message: 21 Date: Sat, 20 Dec 2008 23:15:15 -0500 From: "Jim Temple" <jetemp at insightbb.com> Subject: FDOS for Fluke 1720A To: <cctech at classiccmp.org> Message-ID: <000301c96322$ba111790$2e3346b0$@com> Content-Type: text/plain; charset="us-ascii" Hello, Saw your post and thought I would ask about the software and manuals for the Fluke 1722A controller. Do you still have them? Did you get them to Bitsavers? I'm interested in obtaining the above software. Sincerely, Jim Temple Louisville, KY. ------------------------------ Message: 22 Date: Sun, 21 Dec 2008 02:00:47 -0500 From: "Ethan Dicks" <ethan.dicks at gmail.com> Subject: Re: any idea what this schematic is? To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk at classiccmp.org> Message-ID: <f4eb766f0812202300p2d920340t1bc9334693265968 at mail.gmail.com> Content-Type: text/plain; charset=ISO-8859-1 On Sun, Dec 21, 2008 at 1:00 AM, Gordon JC Pearce MM3YEQ <gordonjcp at gjcp.net> wrote: > Ray Arachelian wrote: >> >> http://flickr.com/photos/spaceageboy/3117272956/sizes/o/ > > It's a serial port. Yep. >> Would this be the interface between the Lisa and the Mac as related here: >> <http://folklore.org/StoryView.py?project=Macintosh&story=Shut_Up.txt&sortOr der=Sort%20by%20Date&detail=medium&search=shut%20up> > > Hmm, the 1981 date suggests that it would a bit early for the Mac... Not sure about the date, but that's only two-ish years before I seem to recall seeing an article about the Mac in "Byte" (1983). > ...and the layout of the PCB suggests an Apple II card... I completely disagree. The location of the power and ground pins on the schematic are where the Apple II has the address and data buses (plus +12V, on the wrong pin for the schematic). Additionally, the signal names /VMA, /VPA, and E are usual names for MC68000 buses (or perhaps the 6809), not the 6502. Plus, suggestively, but not conclusively, the card form factor doesn't look to me to be something for the Apple II (the card is too tall compared to the width the fingers are drawn at). I'm reasonably certain that A) it's not an Apple II card, and B) it's a card for some 50-pin-bus 68000 machine. It might as well be the Lisa as anything else, but that could be confirmed by cross referencing the listed bus pins with Lisa documentation. -ethan ------------------------------ Message: 23 Date: Sat, 20 Dec 2008 23:16:11 -0800 From: Lyle Bickley <lbickley at bickleywest.com> Subject: Re: Engelbart's mouse / 40th anniversary To: "General Discussion: On-Topic Posts Only" <cctech at classiccmp.org>, "Marcin Wichary" <mwichary at gmail.com> Message-ID: <200812202316.11632.lbickley at bickleywest.com> Content-Type: text/plain; charset="iso-8859-1" Marcin, On Sunday 14 December 2008, Marcin Wichary wrote: > Here are my photos from the event, for those interested: > http://flickriver.com/photos/mwichary/sets/72157610918709769/ > > (48 photos in total. Scroll down to see more.) Great photos! Thanks for posting them... Cheers, Lyle -- Lyle Bickley Bickley Consulting West Inc. http://bickleywest.com "Black holes are where God is dividing by zero" ------------------------------ Message: 24 Date: Sun, 21 Dec 2008 05:46:51 -0200 From: "Alexandre Souza" <alexandre-listas at e-secure.com.br> Subject: Re: any idea what this schematic is? To: "General Discussion: On-Topic Posts Only" <cctech at classiccmp.org> Message-ID: <126b01c96340$757f8d00$46fea8c0 at DeskJara> Content-Type: text/plain; format=flowed; charset="iso-8859-1"; reply-type=original >> http://flickr.com/photos/spaceageboy/3117272956/sizes/o/ I don't know which computer was used but: - It is a serial card - It has a 50-pin card edge connector (Lisa, maybe?) - It has RS-422 line drivers (so, it seems to be connected to a Macintosh) - It is NOT an apple // card, although having 50-pin card edge connector (I tried to reverse the pinout but got also no good result) - It is NOT an apple //e expansion card, that one you put on the 80-column slot. Even reversing the pinout So, it is probable it is used in a Lisa or a Macintosh XL (same machine?) Greetings from Brazil Alexandre Souza, PU1BZZ ------------------------------ Message: 25 Date: Sun, 21 Dec 2008 00:51:44 -0800 From: "r.stricklin" <bear at typewritten.org> Subject: Re: any idea what this schematic is? To: "General Discussion: On-Topic Posts Only" <cctech at classiccmp.org> Message-ID: <62F98EEF-A14E-4CF5-9BCF-90EBF9A0DE93 at typewritten.org> Content-Type: text/plain; charset=US-ASCII; format=flowed; delsp=yes On Dec 20, 2008, at 11:46 PM, Alexandre Souza wrote: >>> http://flickr.com/photos/spaceageboy/3117272956/sizes/o/ > > - It has a 50-pin card edge connector (Lisa, maybe?) I'm not sure what the mystery is. It fits a Lisa, and was used to download software to the early prototypes of the Macintosh. http://www.digibarn.com/collections/diagrams/early-mac-interfaces/index.html The earliest Lisa prototypes had 50-pin edge connectors for the I/O expansion cards. Sometime between 7/81 and 2/82 the Lisa got the pinch- fit, 56-pin edge connector for I/O expansion cards that it eventually shipped with. The collection of diagrams at DigiBarn (from which the flickr image was nicked) shows this evolution pretty clearly. ok bear End of cctalk Digest, Vol 64, Issue 52 **************************************

17 years, 8 months

1
0
0 0

oregon software tape

by aek＠bitsavers.org

> The seller sounds like he would care too He doesn't.. I've emailed him several times with questions about specific items or if he has the other bits of things that he listed, and he has never had the courtesy to reply. He does let me know when I've waited too long in his option to pay him, however (I try to group lots together to save on shipping). I have identified the buyer of the other tape.

17 years, 8 months

1
0
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Apple Newton Messagepad 100 (Original) boxed complete and Messagepad 120

by michaelgreen42＠comcast.net

Very interesting vintage Newtons I've got a complete in box Messagepad 100 and a loose 120. Selling as a lot to the highest offer.

17 years, 8 months

2
1
0 0

USB Model M

by dm561＠torfree.net

Date: Thu, 11 Dec 2008 10:57:08 +0100 (CET) From: Christian Corti <cc at informatik.uni-stuttgart.de> Subject: RE: USB Model M <snip> what should I say... don't trust them. ... IBM has never called the keyboard model M <snip> Christian ----------Reply: Really? Odd, mine all say IBM in big letters on the front and back, and "Model M" quite clearly on the back (M2 on the newer ones). I wonder; do you suppose someone else printed that on there? Maybe they're counterfeit... Can I trust what *you* say? ;-) Or did I misunderstand something? m

17 years, 8 months

23
68
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Radio Shack Science Fair manuals

by rbunz＠shaw.ca

Do you know where i can get a manual for the Science Fair electronic project kit # 28-247? I would like to give it to my son for Christmas so a manual would be great. Thanks Ron

17 years, 8 months

2
1
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any idea what this schematic is?

by ray＠arachelian.com

http://flickr.com/photos/spaceageboy/3117272956/sizes/o/ Would this be the interface between the Lisa and the Mac as related here: http://folklore.org/StoryView.py?project=Macintosh&story=Shut_Up.txt&sortOr… > Unfortunately, there was one small snag. We were using the Lisa as the > development machine for writing the software for Macintosh, and we > hadn't yet reached the point where the Macintosh could run > stand-alone. The Macintosh needed to be hooked up to a Lisa, in order > to download software from it. But the Lisa group was writing all of > its own applications for Lisa and didn't want Microsoft to see a Lisa. > They made us promise that we wouldn't let Microsoft see the Lisa. > > We finally came up with a solution where we'd use a twenty-five foot > cable and keep the Lisa in a different room that the Microsoft guys > weren't allowed to enter. I would start up the programs on the Lisa in > the other room, and Bud Tribble would operate the Macintosh. I would > usually run into the main room to see their reaction.

17 years, 8 months

9
11
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Turbo Pascal evaluation

by dgriffi＠cs.csubak.edu

Recently Al Kossow purchased from me an evaluation copy of Turbo Pascal which was previously evaluated by science fiction author Jerry Pournelle for his columnin Byte Magazine. With Al's permission, I have reproduced the text of the letter that came with that copy. ---BEGIN QUOTE--- Borland International 4807 Scots Valley Drive Scots Valley, California 95066 (408) 438-5400 Telex: 172373 Mr. Jerry Pournelle, November 14, 1983 Science Fact and Fiction (address censored) Dear Sir, Thank you for your interest in our company and especially in our new product, Turbo Pascal. I have enclosed the following versions of Turbo Pascal: 1. CP/M 80 on 8-inch SSSD disk for Z80 based systems. 2. CP/M 85 on 8-inch SSSD disk and 5-1/4 inch IBM PC. 3. MS DOS 1.1 version for the IBM PC on a 5-1/4 inch disk. We have already verified that this version runs on the following computers: IBM PC, Eagle PC line, Columbia PC, Compaq PC. 4. Test version for the IBM PC using the 8087 math co-processor. Note that this is only a test version. We will be very pleased to answer all the questions you might have during your evaluation I would like to meet you in person and maybe COMDEX Las Vegas would be a good oportunity. But my plans for COMDEX Las Vegas are not finalized yet. Therefore the easiest thing would be for you to let me know where you will be staying so that we can eventually arrange a meeting. Sincerely yours, (signature) Philippe Kahn President P.S. You will find in this shipment the package that our customers receive for $49.95. We feel it is a good buy! ENCLOSURE ---END QUOTE--- -- David Griffith dgriffi at cs.csubak.edu A: Because it fouls the order in which people normally read text. Q: Why is top-posting such a bad thing? A: Top-posting. Q: What is the most annoying thing in e-mail?

17 years, 8 months

3
3
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CBM 8000 VideoCD?

by ethan.dicks＠gmail.com

Hi, all, I was bouncing around looking for SuperPET info and ran across this page (again)... <http://members.tripod.com/~petlibrary/vcdpage.htm> Unfortunately, the address on the page is no longer active, so it's not possible to request a copy of the video. Did anyone on the list ever get this? -ethan

17 years, 8 months

2
1
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oregon software tape

by aek＠bitsavers.org

did anyone on the list buy this tape? http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=120348714966 I got the earlier version, and it is a source tape. I'm trying to find out if the other one was as well. fscking eBay now hides the buyer's ID.

17 years, 8 months

3
2
0 0

Engelbart's mouse / 40th anniversary

by hilpert＠cs.ubc.ca

There was a blurb just now on the radio (CBC) about Engelbart's development of the mouse, including an audio recording of his presentation of it at a conference in 1968. That was nice, but weird/annnoying is that the reporter referred to it as a "discovery". Is it not possible to invent anything anymore? Is everything, and everything that will ever be in the future, an already-existing concept waiting out there in some alternative universe of the imagination, just waiting to be "discovered" by the mind of somebody? Or did I miss a debate about the semiotics of "discovery" vs. "invention" in the public discourse somewhere along the way? It's nice to be humble about achievements and acknowledge that developments are built upon other developments and don't occur in isolation but isn't this taking it a bit far?

17 years, 8 months

10
10
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MS WinWord 6.0 32-bit

by lproven＠gmail.com

This is somewhat off-topic for here, but I don't know where else to ask. Way back in the early days of 32-bit Windows - I know, 5min ago by local standards - MS did a 32-bit version of Word and Excel for users of MS Office 4 on Windows NT 3. I used to have copies - on floppy - but I've lost them. No idea where to get replacements now, but I would really like to be able to use Word 6/32 again. It was a great WP, and by modern standards, tiny and very fast. Anyone still have a copy, or can suggest where to look or ask? -- Liam Proven ? Profile: http://www.linkedin.com/in/liamproven Email: lproven at cix.co.uk ? GMail/GoogleTalk/Orkut: lproven at gmail.com Tel: +44 20-8685-0498 ? Cell: +44 7939-087884 ? Fax: + 44 870-9151419 AOL/AIM/iChat: liamproven at aol.com ? MSN/Messenger: lproven at hotmail.com Yahoo: liamproven at yahoo.co.uk ? Skype: liamproven ? ICQ: 73187508

17 years, 8 months

1
0
0 0

FDOS for Fluke 1720A

by jetemp＠insightbb.com

Hello, Saw your post and thought I would ask about the software and manuals for the Fluke 1722A controller. Do you still have them? Did you get them to Bitsavers? I'm interested in obtaining the above software. Sincerely, Jim Temple Louisville, KY.

17 years, 8 months

1
0
0 0

New USB Mod Ms available from Unicomp? was Re: USB Model M

by innfoclassics＠gmail.com

> Right here: http://pckeyboards.stores.yahoo.net/cabdetmin.html > Thanks for the link as I need some cables too. I bought a dozen Model Ms from a local community college garage sale. They were complaining about how much noise they made. At 50 cents apiece I bought all they had. I noticed that Unicomp, the site mentioned above sells new Buckling Key keyboards With USB built in for $69. http://pckeyboards.stores.yahoo.net/cus101usenon.html These are the people that bought the Keyboard parts business from IBM. It looks like they are trying to keep the model M and continue to supply the market. Paxton -- Paxton Hoag Astoria, OR USA

17 years, 8 months

1
0
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Rockwell PPS-4 info (was 8008 v. 4004...)

by mcguire＠neurotica.com

On Wed, December 17, 2008 3:05 pm, Brent Hilpert wrote: > There was a later PPS-4/1 single-chip version. I don't know how popular > this > stuff was but I wonder if there aren't more PPS-4 systems buried in > equipment > and appliances from the period than is commonly known. (I have wondered, > for > example, what the 70's-era Amana Radarange microwave ovens used for > control.) Umm...mechanical timers. -Dave -- Dave McGuire Port Charlotte, FL

17 years, 8 months

7
10
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Timekeeping (was Re: Sherwood Micro CPU/100)

by ethan.dicks＠gmail.com

On Fri, Dec 19, 2008 at 2:18 AM, Ian King <IanK at vulcan.com> wrote: > Well, it did. My nine-year-old daughter has a hard time with me telling her it's "a quarter to nine" when it is, in fact, 8:42. The convenience of rounding is something I'm working to help her appreciate. There's a practical side, too: when I'm trying to get her ready for school in the morning, she'll cling to the useless fact that she has "three more minutes" before it's time to go, during which she can supposedly write a sonnet, create a work of art, and find her socks, shoes and a suitable coat. 'Perception of time', indeed.... -- Ian > > [*] I remember the consternation the transition from analog to digital clocks > caused in the mid-70s. Many people seemed to have difficulty with it and were > somehow concerned that it might 'change our perception of time'. I just watched the Quartz Clock episode of "The Secret Life of Machines", and there was a bit in there about that - the animated character was trying to figure out how late he was to the opera by "doing the math" in his head about what time his digital watch showed and when the curtain would rise on the performance. He gave up with his sums and asked another animated character what the time was on her analog watch - he quickly saw the minuscule number of degrees difference between now and they and understood how late he was. It used to be a big deal to learn how to tell approximate time when learning foreign languages, but perhaps now that quartz/electric motor analog watches are inexpensive (certainly compared to a mechanical watch), knowing that it's "half past ten" or "ten to eleven" will become fashionable once again. My first watch was a "cheap" ($15?) digital LED watch, c. 1978. I got a Timex mechanical watch for a graduation present a few years later, but I guess I gave it more of a licking than it could stand, because I remember tearing it apart less than 5 years later (because it didn't work, not just to see what was inside). I don't really miss the Timex, but I miss those glowing red digits. Much more recently, someone got me a modern BCD/binary watch from ThinkGeek. I like it, but I've been reading binary clocks since they were popular when I was a kid. I remember trying to find a binary clock kit between about 1982 and 1992 and they just couldn't be found anywhere. That pendulum has certainly swung the other way (pun intended). Now if I could just find where I stashed my 4000-series CMOS and ~100 LED clock from the late 1970s that I picked up at a St Vincent DePaul's a couple of years back - I need to find which of the 30ish chips has a bad gate and consider replacing the LEDs with new, non-age-dimmed ones. It's a pretty neat clock, made in Indiana (can't remember where right now), and has a couple of concentric rings of LEDs to simulate analog hands. It mostly worked when I got it home, but there's a stray "ghost" hand that comes and goes as the time ticks around the face. So many ways to tell time in the modern era. This is a huge change >from a few centuries ago, when a marked stick was close enough. -ethan

17 years, 8 months

6
11
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Rockwell PPS-4 info (was 8008 v. 4004...)

by mc＠media.mit.edu

Thanks for the lead on the Rockwell PPS-4. Does anyone know where I can find architectural info on it, and/or a die photo? It seems to be quite rare, and there is almost no information about this chip [family] on the web. --Tim

17 years, 8 months

4
3
0 0

Canon Cat: what density 3.5"?

by tosteve＠yahoo.com

DSDD floppy disks work fine, but I don't believe that you can buy them anymore. I think the Cat only uses 265K of disk space, and will format them if required. Steve. --- On Thu, 12/18/08, Cameron Kaiser <spectre at floodgap.com> wrote: From: Cameron Kaiser <spectre at floodgap.com> Subject: Canon Cat: what density 3.5"? To: cctalk at classiccmp.org Date: Thursday, December 18, 2008, 8:04 PM What type of 3.5" floppies are people using in their Cats? Would off-the-shelf double-density suffice? Any special preparation required? -- ------------------------------------ personal: http://www.cameronkaiser.com/ -- ? Cameron Kaiser * Floodgap Systems * www.floodgap.com * ckaiser at floodgap.com -- Nuclear war would really set back cable. -- Ted Turner ---------------------

17 years, 8 months

7
7
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Free for Shipping - Tandy MMPC Model 10

by martinm＠allwest.net

Going to recycle - Tandy MMPC Model 10. Looks like a pretty plain 486sx desktop. Does anyone want it or parts of it? Reply off-list to "martinm" at the domain "allwest.net". I'm in the US at 82930. Thank you, Martin Marshall

17 years, 8 months

1
0
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radio shack catalogs

by dgriffi＠cs.csubak.edu

Someone on comp.os.cpm pointed this out. I don't recall anyone doing so here. http://www.radioshackcatalogs.com/. Mmm... Fond memories of when Radio Shack didn't stink. -- David Griffith dgriffi at cs.csubak.edu A: Because it fouls the order in which people normally read text. Q: Why is top-posting such a bad thing? A: Top-posting. Q: What is the most annoying thing in e-mail?

17 years, 8 months

13
14
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Scrapping Sun IPX and IPC

by martinm＠allwest.net

These are going to recycle. Does anyone need any parts? Reply off-line to "martinm" at the domain "allwest.net". Thanks, Martin

17 years, 8 months

2
1
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Subject: Re: Mac II's, IIx's, IIci's

by michaelgreen42＠comcast.net

BTW I'm located in Fife WA.

17 years, 8 months

1
0
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Rockwell PPS-4 info (was 8008 v. 4004...)

by aek＠bitsavers.org

> The earliest I have seen so far is a > Sherwood FM tuner ca. 1977 that uses an RCA 1802 (e.g. > http://atlanta.craigslist.org/ele/927622156.html). Bit of trivia. That tuner was designed and built in Milwaukee by a company that a friend of mine worked for. At the time, several of his friends built units up from leftovers from the production run.

17 years, 8 months

6
8
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Free for Cost of Shipping: Diamond TrackStar 128K - Apple II

by martinm＠allwest.net

The TrackStar has been claimed. I working out who's on first. Thanks, Martin > -----Original Message----- > From: Martin Marshall [mailto:martinm at allwest.net] > Sent: Thursday, December 18, 2008 9:48 PM > To: General Discussion: On-Topic and Off-Topic Posts; The Rescue List > Subject: Free for Cost of Shipping: Diamond TrackStar 128K - Apple II > > > Here's one that I'll never get around to: > > Diamond TrackStar 128K board for PC, PC/XT, Tandy 1000 SX. > This is an add-in board to run Apple II, etc software on a > PC. In original box with original 5 1/4" disk and everything > that I could scarf off the net in 2001 - 2002. Has cables, etc. > > Free for shipping. Please reply off-list to user "martinm" > at domain "allwest.net". > > Thank you, > Martin Marshall >

17 years, 8 months

1
0
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In search of some RAM.

by kerobaros＠gmail.com

I co-manage a gaming center in the mall up here in Cheyenne, Wyoming. I've started setting up a couple older computers around the store as some sort of mini-museum, to try teach the kids that there was indeed something before Halo and WoW. My latest setup is a Power Mac 5500/225, with copies of the old Carmen Sandiego games, and Oregon Trail, and all those other fun things I grew up on. Only problem is that the computer has 48MB of RAM, when it could take up to 128MB, assuming I can lay my hands on the right sticks of RAM. Which is the point of this message! If anyone has a couple of 64MB DIMMs (LowEndMac says the computer wants it in a 60ns EDO flavor), I'd be much obliged if we could work out some sort of deal. If there's something one of you are looking for, I'm sure we could figure out something. I'm sure I have at least a gigabyte of the stuff somewhere in St. Louis, but that's enough hours away that it's not worth it at the moment. Thanks, folks! ~Matt

17 years, 8 months

1
0
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Free for Cost of Shipping: Diamond TrackStar 128K - Apple II

by martinm＠allwest.net

Here's one that I'll never get around to: Diamond TrackStar 128K board for PC, PC/XT, Tandy 1000 SX. This is an add-in board to run Apple II, etc software on a PC. In original box with original 5 1/4" disk and everything that I could scarf off the net in 2001 - 2002. Has cables, etc. Free for shipping. Please reply off-list to user "martinm" at domain "allwest.net". Thank you, Martin Marshall

17 years, 8 months

1
0
0 0

Canon Cat: what density 3.5"?

by spectre＠floodgap.com

What type of 3.5" floppies are people using in their Cats? Would off-the-shelf double-density suffice? Any special preparation required? -- ------------------------------------ personal: http://www.cameronkaiser.com/ -- Cameron Kaiser * Floodgap Systems * www.floodgap.com * ckaiser at floodgap.com -- Nuclear war would really set back cable. -- Ted Turner ---------------------

17 years, 8 months

1
0
0 0

CPU/Hardware info for Seiko UC-2000

by derschjo＠msu.edu

Hi all -- Got myself a Seiko UC-2000 ("Wrist Information System") w/UC-2200 keyboard/terminal. The UC-2000 is a souped-up digital watch with a dot-matrix display, and the Keyboard unit is basically a computer that uses the watch as a display. (So it's more or less like the old Sharp/Casio BASIC programmables, only it uses a watch for a display instead of something built-in...) But the watch itself is _also_ a small computer -- one can upload small binary programs from the Keyboard unit to the watch. From the little information I've been able to find, it has 2k of RAM, 7k of ROM, and a 4-bit CPU running at 32kHz (yes, kHz). Does anyone know anything about the CPU? It'd be fun to write some little programs for this (assuming I can work out how to get them transferred over...) (See http://www.pocketcalculatorshow.com/nerdwatch/fun2.html for a brief description of the UC-2000 and others in the same family...) Josh

17 years, 8 months

1
0
0 0

resurrecting a Zilog System 8000

by lehmann＠ans-netz.de

Hi, as someone might remember, I've got some Zilog System 8000 equipment and over the last days I've started resurrecting it. I thought - maybe someone feels interested in the story as well ;) 2 days ago I've built my "custom" frontpanel (just a transition solution) with the remaining stuff I had at home. The "original-like" push button I tried to get in my local electronic distributor was out of stock. So I reused an old circuit board, 11+40 ohm resisitor to get the needed 51 ohm and so on... ;-) The final version will contain the "original-like" push buttons, the LED banks and so on. It will be mounted then at the same position where the original panel sits. When it is then hidden behind the front door it will look nearly like the original one. At least, thats the plan. Until then: http://pics.pofo.de/gallery/v/S8000/Repair/P1070180.JPG.html http://pics.pofo.de/gallery/v/S8000/Repair/P1070181.JPG.html After this was done, I've used an old PC-AT PSU for supplying the required power to the backplane ("POWERFAIL" cable ignored): http://pics.pofo.de/gallery/v/S8000/Repair/P1070182.JPG.html And then put back all together, huck up a nulmodem cable to my PC and - yeah The firmware got loaded and the usual START message was printed: http://pics.pofo.de/gallery/v/S8000/Repair/P1070183.JPG.html http://pics.pofo.de/gallery/v/S8000/Repair/P1070186.JPG.html Pressing the NMI/START switch on my glamorous frontpanel brings up an immediate FATAL ERROR: S8000 Monitor 1.2 - Press START to Load System P *** ERROR #0000 *** FATAL ERROR [ Reading the hardware ref. manual - this means no external RAM - of course, I still don't have the 1MB dynamic memory board. :( Connecting the WDC board to the bus leads to a non-startable system having the BUSACK LED on the CPU board permanently on - probably the WDC is broken and spams the system BUS... But at least this was my first step which was done OK I guess ;) -- Oliver Lehmann http://www.pofo.de/ http://wishlist.ans-netz.de/

17 years, 8 months

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Tektronix 4111 Graphic terminal

by hp-fix＠xs4all.nl

I got a Tektronix 4111 terminal taking space in my house.. I think it needs a 'better' home, it powers up and all the eprom sockets are filled up but further ..? It's complete with keyboard and no manuals.. It's for a small drinking fee or trade for HP-stuff + shipping of cause. I live in the Netherlands (Europe for the people on the other end of the cable) Please react off-list.. -Rik

17 years, 8 months

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Mac II's, IIx's, IIci's

by michaelgreen42＠comcast.net

I've got a large number of Mac II's and IIx's sitting around. None of them post (I believe due to dead batteries which I understand is common to them). Most of them are fairly yellow but intact. Is there any interest in these for parts/whatever? I also have some IIci's in similar state

17 years, 8 months

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1959 RCA memory device-URL

by cclist＠sydex.com

Beg pardon, forgot the URL: http://blog.modernmechanix.com/2008/12/18/your-world-of-tomorrow- roomba/#comment-1063686 Cheers, Chuck

17 years, 8 months

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1959 RCA memory device

by cclist＠sydex.com

In this 1959 Popular Mechanix report of HECK--RCA's "Home Electronic Center Kid", the following is mentioned: "To speed up the working of electronic computers which assist in such discoveries, the RCA lab recently devised a memory storage plate smaller and thinner than a four-cent postage stamp. It has 256 tiny holes in it and can keep a million facts on file and produce them in any combination or alone in milli-seconds." Does anyone have any additional information about this device? Was it ever commercially deployed? (A couple of interesting asides: Note the "Roomba" in the photo and the description of the about-to-be-produced RCA Nuvistor--and what appears to be a raised floor in the exhibit. And the ghastly "contemporary decor"--could orange shag wall-to-wall carpet be long in coming?) Cheers, Chuck

17 years, 8 months

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My return to Classic Cmp - San Diego, software archive, etc.

by vern4wright＠yahoo.com

Over the past four years I've been taking the digests, pulling down the archives and saving them, in the hope that I'd find time to read and perhaps participate. Never found time. Gotta get this out of the way first: some of you may recall that I was Don Maslin's friend, that I promised to rescue the software archive, and that his widow made that impossible. A mutual friend queried me about this recently, and I have to say that so far as I know, Don's archive rests in his garage, untouched. SAD!!! This year I lost another computer addict friend who participated in the early days of the Z80 (and before that as one of the Non-Linear Systems bright lights) - Bill Bailey. Our Old Farts group is getting smaller. I wonder - are there any warm bodies here in San Diego still interested in the old computers we created over 30 years ago? If so, I'd sure like to talk with them. Perhaps reconstitute the Dina-SIG I founded some 20+ years ago as a local activity for celebration of the early personal computer, idea and information exchange, and good fellowship over good beer! Anyway, I intend to try to drop in here daily and join in the daily conversations. Regards, Vern Wright San Diego, CA

17 years, 8 months

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Mac II's, IIx's, IIci's

by trag＠io.com

> Send cctech mailing list submissions to > cctech at classiccmp.org > > To subscribe or unsubscribe via the World Wide Web, visit > http://www.classiccmp.org/mailman/listinfo/cctech > or, via email, send a message with subject or body 'help' to > cctech-request at classiccmp.org > > > Date: Wed, 17 Dec 2008 09:54:52 -0800 > From: "Michael" <michaelgreen42 at comcast.net> > I've got a large number of Mac II's and IIx's sitting around. None of > them post (I believe due to dead batteries which I understand is common to > them). Most of them are fairly yellow but intact. Is there any interest in > these for parts/whatever? I also have some IIci's in similar state The Mac II and IIx require a working battery in order to trip the power supply. However, the IIci does not. It will power up just fine with a flat battery, because the power supply provides a 5V trickle, which the motherboard makes use of. So any IIci which does not power up has other issues. All those machines are at or past an age where the surface mount electrolytic caps should have leaked corrosive goo all over the logic board. A good cleaning at the least would be a good idea, to prevent further damage. Usually any damage from the leakage is not too hard to repair with careful examination and judicial use of wire wrap (or other tiny wires) and solder. The IIci's logic board power-on circuitry is particularly susceptible to this damage because four of the larger caps (47uF) are sitting on the portion of the board which contains the power-on circuitry. So a common symptom of capacitor-goo damaged IIci's is an inability to power up. Where are you located? Shipping plays a large part in whether there will be interest. The II and IIx are beasts which would cost a lot to ship. The power supply in the IIci was also used in the IIcx, IIvi, IIvx, Quadra 700, Centris 650, Quadra 650 and PowerMac 7100. So at the least, you should find some interest in the IIci power supplies. Jeff Walther

17 years, 8 months

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Rare CPUs (was 8008)

by ken＠seefried.com

Steven Hirsch <snhirsch at gmail.com> >On Tue, 16 Dec 2008, William Blair wrote: > > > > Quote from same forum, different thread: "I think the iAPX432 and Nx686 > > are the most wanted cpu in the collectors community." >Are you serious? Were the Nexgen chips really so rare? Nx586 are pretty common. Nx686 aren't, as it was never released beyond the sampling stage before AMD picked up Nexgen and released it as the K6.

17 years, 8 months

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Mac II's, IIx's, IIci's

by mtapley＠swri.edu

At 12:00 -0600 12/17/08, Michael wrote: >I've got a large number of Mac II's and IIx's sitting around. ... ... err, around where? Hard drives, memory, etc. in place? KB, mice, monitors, etc? -- - Mark 210-379-4635 ----------------------------------------------------------------------- Large Asteroids headed toward planets inhabited by beings that don't have technology adequate to stop them: Think of it as Evolution in Fast-Forward.

17 years, 8 months

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Jean Bartik: the untold story of a remarkable ENIAC programmer

by marvin＠west.net

This is an interesting post on Google Blogspot: Jean Bartik: the untold story of a remarkable ENIAC programmer Jean Bartik: the untold story of a remarkable ENIAC programmer This guest post was written by Kathy Kleiman, who discovered the ENIAC Programmers 20 years ago and founded the ENIAC Programmers Project to record their stories and produce the first feature documentary about their work. More at www.eniacprogrammers.org. ? Ed. http://googleblog.blogspot.com/2008/12/jean-bartik-untold-story-of-remarkab…

17 years, 8 months

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Replica Antikythera device

by evan＠snarc.net

http://blog.wired.com/gadgets/2008/12/2000-year-old-a.html?npu=1 <http://blog.wired.com/gadgets/2008/12/2000-year-old-a.html?npu=1&mbid=yhp> &mbid=yhp

17 years, 8 months

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Rare CPUs (was 8008)

by wbblair3＠yahoo.com

> > Rarest Intel chips in no particular order (from a CPU > collector forum; posted in 2005; nobody disagreed): > > > > X8008 > > G8008 > > C4040 Purple > > C4040 Left Ground Strap > > 8080B > > 8080-8 > > 8008 > > 8008-1 > > MC8080 > > C4004 W #5 & Ground Strap > > Has someone unearthed a bunch of i432s? Any reason they are > not on the list? Quote from same forum, different thread: "I think the iAPX432 and Nx686 are the most wanted cpu in the collectors community."

17 years, 8 months

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8-bit ISA ethernet cards

by pat＠computer-refuge.org

A few weeks ago, some people in here were talking about putting network cards in IBM PCs or XTs or something... As it happens, I ran across a box of 3com 3c503 network cards (AUI and 10BaseT ports, 8 bit ISA card). If anyone wants one, lemme know, I'm asking $5+shipping, and I'll have the box with me at Dayton if you want to harass me about them, then. Pat -- Purdue University ITAP/RCAC --- http://www.rcac.purdue.edu/ The Computer Refuge --- http://computer-refuge.org

17 years, 8 months

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Rare CPUs (was 8008)

by wbblair3＠yahoo.com

> Hi > How many have an 8096? > Dwight Not many, but this guy has one: http://www.cpushack.net/chippics/Intel/8x9x/IntelC8095-90.html

17 years, 8 months

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Any interest in a Corvus Concept in Puget Sound?

by michaelgreen42＠comcast.net

Just the main unit. No idea of its status or config. Email me if interested.

17 years, 8 months

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NCR system 3400 (fwd)

by james＠jdfogg.com

> An NCR 3400 is available in Cary, North Carolina. See > below. Please respond to the original sender. Some of the NCR line was actually the old AT&T line. I think this might be one of them.

17 years, 8 months

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PS2Encoder

by brain＠jbrain.com

Based on a response to my note about having PS/2 keyboard routines that can output parallel ASCII, I thought I'd mention that I took some time these past few nights to clean up my PS2Encoder project. The original project supported: * converting AT and PS/2 keyboard data into parallel with strobe * Capturing CTRL/ALT/DEL keystroke and triggering active low output upon receipt. * RS232 output * Hobbyist friendly 28 pin .300" DIP package layout I've added the following features: * Removal of crystal requirement. While the code can be compiled for one, it is no required for operation * CAPS LOCK works (I have not gotten the code that updates the LED to work yet, but the interface adjusts to uppercase) * Ability to configure interface via keyboard itself * Ability to set parallel strobe to be active low or active high * Ability to set ENTER to send CR or CRLF * Ability to set inter-char holdoff from 0 to 2550uS, in 10uS increments * Ability to set BS to send either BS or DEL * Ability to set RS232 speed (2400,4800,9600,19200,38400) * Ability to save settings permanently in EEPROM The code is available (or will be, as soon as I post it) under GPL (v2), but I'm wondering a few things: * Any other features folks might find handy? I can't promise things (someone suggested full keyboard mapping, which I am still thinking about. It's not a technical issue per se, more a user interface one), but I can try * Anyone interested in a programmed IC for $20.00 (shipping in US included)? Jim -- Jim Brain, Brain Innovations (X) brain at jbrain.com Dabbling in WWW, Embedded Systems, Old CBM computers, and Good Times! Home: http://www.jbrain.com

17 years, 8 months

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8008 v. 4004... & what was the second COTS microprocessor?

by mc＠media.mit.edu

From: Paul Koning <Paul_Koning at Dell.com> Subject: Re: 8008 chips / RAM's Jos> ...The i4004 is a controller, at least to me, because it is Jos> dependent on a specific set of supporting ciruits (4001,40002 Jos> and 4003). The 8008 is much more general purpose. I would make the distinction on the basis of what you can do with it. A college classmate of mine built a 4004 based microcomputer in 1974 that was a general purpose machine, just as the early 8008 basd micros. I would certainly call his creation a microcomputer, not a controller. It certainly was hairy -- about 100 chips on a large wire wrap board. paul Sure, I could imagine agreeing that the 4004 was a "controller," but these are just names. It is still a microprocessor, just that it had a very convenient bus architecture that let you connect RAMs, ROMs, and I/O with no "glue logic." It is certainly true that the bus interface of the 8008 was more general than the 4004, but this meant that the 8008 required dozens of support chips just to build the most minimal system. Peripherals and memory each required decoders to partition the bus address space, whereas the 4001 and 4002 had built-in decoders. It is worth noting that eventually the 4008, 4009 and then the combined 4289 came along to allow the 4004 (and the 4040) to interface to standard memories (static RAMs and e.g. 1702 PROMs). Alas, the 8008 didn't last very long, whereas the 4004 had a 15-year manufacturing run, even as the space of 8-bit microprocessors exploded and surpassed the meager 4004 in capability. The 8008 was originally purpose-built to be a terminal controller and then released for general use. People make a big deal about the first-this and the first-that, but then what happens is no-one can remember the second-this and the second-that. Can anyone remember what the second commercial, customer-programmable microprocessor to hit the market? The 8008 came out in 1972. Were there others introduced that year? I know that the TMS-1000 was right around that time. --Tim

17 years, 8 months

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wtd: 486 and P100~ class machine in NW UK

by stuart＠retrocomputing.tv

Hi everyone, I'm having some difficulty in finding relatively old PC hardware of a certain vintage. I'm looking for a 486 class machine and a machine of P100~ performance. Only caveats are must be ISA/PCI and have some room for peripheral cards. I can pay a token amount and collect in the NW UK. Any leads, please drop me a line. Thanks. Stuart.

17 years, 8 months

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ACCRC Sealed-bid Auction Update for 2008-12-16

by sellam＠vintagetech.com

ACCRC Sealed-bid Auction Update for 2008-12-16 Many people asked about the functional condition of some of the items in the ACCRC sealed-bid auction, and some asked for the configurations of some of the higher-end systems. So I took the time last night to test each machine and below is a summary of the functional status of each machine in the current lot. In summary: nearly all the machines tested work just fine. Also, several people had problems logging in, changing their password, or creating an account. All of these problems should be fixed by now. If you continue to have any issues logging in or creating an account, please let me know ASAP and I will address the issue immediately. FYI, the closing time for this auction is this Thursday, December 18, at 12:00PM PST. There's still plenty of time to update your bids (if warranted). The next auction lot will be posted by this weekend, with a target date of December 19 (this coming Friday). More good stuff is on the way, so don't blow your wad all at once. Functional Summary of Current ACCRC Sealed-bid Auction Lot "GOOD" means the unit powers up and displays video (if applicable). "NLS" stands for "Non-Linear Systems" (see below for explanation). ## Item Condition -- -------------------------------- --------------------------------- 1 Olivetti Divisumma 24 Calculator Untested; needs funky power cord 2 HP1000 Model A900 Powers up; see below for config. 3 Apple Silentype Printer Unable to test (needs int. board) 4 Lagamarsino Totalia 6341 Calc. Untested; needs funky power cord 5 Kaypro 4 GOOD; NLS; drv. B latch is broken 7 Kaypro II GOOD; NLS 8 NEC PC-8201A GOOD 9 Kaypro 2X Does not power up 11 TRS-80 Model 4P GOOD 12 Kaypro 2 GOOD; slight video warping 14 Kaypro 1 GOOD 15 Non-Linear Systems Kaypro II Withdrawn (see notes below) 17 Osborne 1 Power cord cut; cannot test 18 Apple Silentype Printer Unable to test (needs int. board) 19 Apple //c Untested (no power brick) 20 IMSAI Z80 No attempt made to test 21 Osborne Executive GOOD; slight video jitter 22 Osborne 1 (Gray) GOOD 23 Osborne Executive GOOD; slight video jitter 25 Osborne Executive GOOD 26 Kaypro 4 GOOD; brightness is over-driven 27 TRS-80 Color Computer 2 Unable to test (no video cable) 28 Magnavox Odyssey 4000 Beeps; video untested; ~GOOD 29 Access Portable GOOD 30 TI 99/4a Expansion System Unable to test 31 TI 99/4a Didn't bother to test 32 Tandy 200 GOOD 33 TI Silent 700 Does not power up 34 Tandy 600 Powers up; scrambled video 35 Atari 800XL & 1050 Untested (no power brick) 36 Sony SMC-70 Powers up; need video cable 37 Macintosh 128K GOOD; see updated description 38 Macintosh (Original) GOOD; "Sad Mac" = 0F0002 39 Altos 8600 Powers up; HD sounds sick 40 Famicom Clone Unable to test 41 Canon Cat GOOD Additional notes on certain machines: Kaypros - Kaypro Corporation originally started out as "Non-Linear Systems, Inc.", changing its name after the success of their Kaypro computer line (their initial claim to fame is bringing to market the first digital voltmeter; see Wikipedia for more details). Early Kaypro computers were labeled as being made by "Non-Linear Systems". In my opinion, these early machines are more rare and valuable than the later "Kaypro" branded machines. During the course of my more detailed inspection, I realized that several of the Kaypro machines carry the "Non-Linear Systems" branding. "NLS" in the condition column above indicates a "Non-Linear Systems" branded machine. The item descriptions on the auction page have been updated to reflect this new information. The "Non-Linear Systems Kaypro II" (Item #15) has been withdrawn because it was determined that it was already sold. I apologize profusely for this. Osborne Executives - the "slight video jitter" indicated might be a side effect of the drive motors when the unit is seeking a boot disk. HP 1000 Model A900 ------------------ The configuration of the HP 1000 A900 is as follows: A900 CNTRL STOR A900 SEQUENCER A900 DATA PATH A900 CACHE CTRL A900 MEM CNTRL MEMORY 3 MB MEMORY 3/4 MB HP-IB 8 CHAN MUX BB PARALLEL HP-IB As noted above, this machines powers up, but no other information about it's functional condition is known. IMSAI Z80 --------- The configuration of the IMSAI Z80 is as follows: CompuPro CPU-Z (Z80 processor with 1985 date code) Cromemco 32K ByteSaver Fulcrum Static RAM (?) Fulcrum Static RAM (?) [second board] Digital Research Computers RAM (?) Godbout System Support 1 Morrow Disk Jockey/DMA (floppy disk controller) Morrow HDC/DMA (hard disk controller) IMSAI MIO (Rev. 2) CompuPro Interfacer 4 No attempt was made to power on the IMSAI. This is pretty much a project machine, though it's in good enough condition that an experienced hobbyist should be able to get it booted with a couple hours of tinkering. It's a good starter machine for a noob. Please contact me if you have any further questions about any of these items. Best regards, Sellam Ismail Proprietor Vintage Computer Festival

17 years, 8 months

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OT: ping Joe Rigdon or Kenn Jorgensen

by keithvz＠verizon.net

If either Joe Rigdon or Kenn Jorgensen is monitoring this list, please contact me. Thanks Keith

17 years, 8 months

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NCR system 3400 (fwd)

by sellam＠vintagetech.com

An NCR 3400 is available in Cary, North Carolina. See below. Please respond to the original sender. Reply-to: terry at eurosoftinc.com ---------- Forwarded message ---------- Date: Thu, 11 Dec 2008 13:45:59 -0500 From: Terry Stanfield <terry at eurosoftinc.com> To: donate at vintage.org Subject: NCR system 3400 We have an old NCR system 3400 here in our office that I would be very sad to send to the dumpster. Would you be interested? Unfortunately we are on the east coast. Thanks, Terry Stanfield Eurosoft, Inc., 1628 Old Apex Road Cary, NC 27513 (919)468-3003 ext 223 http://www.eurosoftinc.com --- -- Sellam Ismail Vintage Computer Festival ------------------------------------------------------------------------------ International Man of Intrigue and Danger http://www.vintage.org [ Old computing resources for business || Buy/Sell/Trade Vintage Computers ] [ and academia at www.VintageTech.com || at http://marketplace.vintage.org ]

17 years, 8 months

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vintage CPU instruction sets

by jules.richardson99＠gmail.com

All this talk of CPUs got me back onto thoughts of homebrew CPU design, which has been a stalled project of mine for the last year or so. So, has anyone come across a good online resource which compares vintage CPU instruction sets? It'd be useful to see what 'core' instructions* were most common back in the day and use that as a basis for my own homebrew effort; I think I can probably rustle up things like hardware multiply and divide, but really don't want an all-singing solution. KISS and all that. :-) * My hands-on knowledge is pretty much limited to Z80, 6502, 68000 and x86, and it'd be nice to go a little further back in time - but hopefully without having to download and digest many different databooks! cheers Jules

17 years, 8 months

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Edmund Berkeley question

by evan＠snarc.net

Anyone know when Berkeley Enterprises closed?

17 years, 8 months

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8008 chips

by ajp166＠bellatlantic.net

> >Subject: Re: 8008 chips > From: "William Donzelli" <wdonzelli at gmail.com> > Date: Mon, 15 Dec 2008 15:28:41 -0500 > To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk at classiccmp.org> > >> I have a bag of 35 NOS type "MF1103P" dated 722x, 18-pin plastic DIP, gold-plate >> pins, made by Microsystems International Ltd. (a briefly-existent Canadian >> chip maker). I believe these were 2nd-sourced 1103's, as MIL also made an >> MF8008 and MF1702. >> >> I also have a gold-capped C8008. One idea would be to make a period-style >> 8008 system with all of it. >> >> If I sell them can I retire to Monte Carlo instead? > >You could probably get a nice plane ticket. > >There is a "missing link" Intel RAM that many chip guys lust for. I do >not recall the number - 210something. The 1101 256 byte static ram. Later there would be the 2102 (1kx1) and 2102 256x4 that were important to small computeres. The 1103 was dynamic and while cheaper it was also hard to work with due to refresh and interface needs. Allison > >If I look thru my records I can probably remember, but I have too many >things to do right now. > >-- >Will > >--

17 years, 8 months

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8008 chips

by doc＠mdrconsult.com

First, I know approximately nothing about old Intel chips, so forgive any incoherence. A friend of mine just came across a couple of Intel 8008 chips. Apparently, some ebay sellers think they're solid gold. http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=260099837541 As far as we can tell, that's what Mel has. Anyway, I told him I'd try to find out what it's actually worth and whether anyone here is willing to pay whatever's reasonable. He also has some later 8008s without the gold cap. Doc

17 years, 8 months

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1Mx4 DRAMs (was Re: 8008 chips)

by ethan.dicks＠gmail.com

On 12/15/08, Keith <keithvz at verizon.net> wrote: > William Donzelli wrote: > > > ...Why dont people collect i1103's ? > > > > They do. Some of the early RAM fetches HUGE money. Multiple hundreds > > for some of the real raries. > > Tell me about it. I've been looking for 1Mx4-bit 20-pin DIP DRAMs for > years. The closest I've come is some 26/20-pin surface mount. I have, too... I need 4 of them to upgrade my Rejuvenator in my Amiga 1000 from 1M of CHIP RAM to 2M of CHIP RAM (that and a "Fatter Agnus", but those aren't as difficult to find as the RAM itself). <http://amiga.resource.cx/manual/Rejuvenator_AgnusInstall.pdf> It's never been critical, so I've never bothered, but with the Sprit InBoard and the Starboard on the side (w/StarDrive SCSI interface), it would be a nice boost. Worst case, if I ever did start using my A1000 and really, really wanted it, I suppose I could cobble a daughter card up that would plug into the RAM bank on the Rejuvenator, but that's a lot of work for a very optional upgrade. -ethan -ethan

17 years, 8 months

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cctalk Digest, Vol 64, Issue 42

by wbblair3＠yahoo.com

> I wonder if a really workable counterfeit could made from > other than a different chip with new paint? Hopefully that won't > happen, but with this kind of money involved who knows. There are discussions of this in CPU collector forums often. If the price is high enough, it's well worth it (to thieves). China appears to be a significant source for counterfeited chips, mainly "Engineering Samples," "Prototype" and "Confidential" supplementary-marked chips. And I can imagine that somewhere along the line, there were a whole bunch of ICs with exactly the same external appearance as the 4004 that could be remarked. If the buyer doesn't functional check the chip or open it up for die inspection, who'd know other than the thief who sold it?

17 years, 8 months

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DEC system module (PDP-1/4/5/6) and CDC 1604/160A-type boards on eBay

by wmaddox＠pacbell.net

There is a DEC system module (PDP-1/4/5/6 era) in this lot, as well as several Control Data modules of the sort used in the 1604 and 160A. These are nice display pieces, but I'm well-stocked on both accounts, so I'm going to pass on this one. With 6 hours to go, the price is at $5 with no bids. --Bill http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=270315494162 Lot of 8 Vintage Circuit Boards - 1960s

17 years, 8 months

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Altos 580-10A on eBay

by michaelgreen42＠comcast.net

System is in excellent condition overall and comes with several books and even some software. http://cgi.ebay.com/RARE-Altos-580-10A-Computer-ORIGINAL-DOCS-AND-SOFTWARE_W 0QQitemZ120350775271QQcmdZViewItemQQptZLH_DefaultDomain_0?hash=item120350775 271&_trksid=p3286.c0.m14&_trkparms=72%3A1234|66%3A2|65%3A12|39%3A1|240%3A131 8|301%3A1|293%3A1|294%3A50

17 years, 8 months

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68k homebuilts

by slawmaster＠gmail.com

Hi everyone As a 4th year computer engineering student with a part time job, I definitely have too much time on my hands, so I've been thinking about doing something like building my own computer. I remember playing with the 68k SBCs back in my assembly class, so I thought something from that family might be an interesting choice. It's ambitious, but ideally I'd like to do 16/32 bits and a few megs of memory. Have any of you built something like this? I'm looking for links to project pages, shared experiences, and advice on what processor to use. Reminiscence is welcome too, if you have fond memories of such a thing :) Thanks John Floren -- Ph'nglui mglw'nafh Cthulhu R'lyeh wgah'nagl fhtagn

17 years, 8 months

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The first video game

by lproven＠gmail.com

I never knew there was a coin-op Spacewar! http://www.theregister.co.uk/2008/12/13/tob_computer_space/print.html -- Liam Proven ? Profile: http://www.linkedin.com/in/liamproven Email: lproven at cix.co.uk ? GMail/GoogleTalk/Orkut: lproven at gmail.com Tel: +44 20-8685-0498 ? Cell: +44 7939-087884 ? Fax: + 44 870-9151419 AOL/AIM/iChat: liamproven at aol.com ? MSN/Messenger: lproven at hotmail.com Yahoo: liamproven at yahoo.co.uk ? Skype: liamproven ? ICQ: 73187508

17 years, 8 months

6
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8008 chips

by wbblair3＠yahoo.com

Rarest Intel chips in no particular order (from a CPU collector forum; posted in 2005; nobody disagreed): X8008 G8008 C4040 Purple C4040 Left Ground Strap 8080B 8080-8 8008 8008-1 MC8080 C4004 W #5 & Ground Strap

17 years, 8 months

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1
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1Mx4 DRAMs (was Re: 8008 chips)

by marvin＠west.net

ISTR that the 441000s were used in some of the RAM expansion boards for the HP laserjet Series II printers as well as some of the EMS memory expansion boards. I probably have a stash of them around here in boards, but it would also probably take a day of looking to find them :). > > > Not 411000s - those are 1Mx1s unless I'm quite mistaken. I have a > > > small pile of those. What I need (as mentioned in the subject line) > > > is 1Mx4, perhaps known as 441000s, perhaps by other numbers; and I > > > agree with Keith that they are uncommon in DIP format...

17 years, 8 months

1
0
0 0

Commodore PET RS-232

by ajp166＠bellatlantic.net

> >Subject: Re: Commodore PET RS-232 > From: Fred Cisin <cisin at xenosoft.com> > Date: Fri, 12 Dec 2008 18:22:39 -0800 (PST) > To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk at classiccmp.org> > >On Fri, 12 Dec 2008, Dave Caroline wrote: >> should be a way/was a way to use the 6522 VIA chip it will need >> translation to rs232 levels though > >Does anybody here remember a thread from last month called: >Re: RS232 voltage level converter box > >(trying to figure out what a board with 1488s and 1489s was for) > DEC had boards like that for going from TTL to RS232 as modules and for current loop (TTY) to RS232 or the other way around. There were a lot of "things" that often had oddball interfaces like Ham radio tranceivers that could be driven by computer but only had serial TTL. Allison

17 years, 8 months

3
3
0 0

Amiga Video Toaster with Penn and Teller

by mikelee＠tdh.com

Anyone have a copy of or know if copies even exists of the videos done by NewTek with Penn and Teller?**

17 years, 8 months

4
3
0 0

Source for MMJ cables.

by bqt＠softjar.se

tiggerlasv at aim.com wrote: > I don't have a source for MMJ cables, > but I do have a US/Domestic source for MMP's > (the offset modular connectors). . . > > http://www.gruber.com/GruberInd/pg.asp?FeatureID=38 > > They are .14 / each for flat cable, and .41 / each for round cable. > Last I checked, they don't ship internationally. > > > There are two different styles of DecConnect cables; > both inverted, and not inverted.?? The only difference > of course, is that one connector is flipped on one end. Correct. And excellent info. > When used with genuine DEC adapters, one?style worked > for printers (DCE), and the other style worked with terminals (DTE). Um. No. :-) Both printers, terminals and computers are DTE. DTE means data terminal (or terminating) equipment, while DCE means data communcation equipment. A typical DCE is a modem. DEC was one of the few companies that actually got this right, and made cables and connectors that actually followed the standard (well, until the switched to MMJ anyway, which was a standard of it's own). If just every computer manufacturer had read the specs, the world would have been much nicer, but what can one expect from companies who just didn't put in the effort because of money and lockins (most anyone), or just was too big to even bother (IBM). The other company I know of who was pretty good at actually following the RS-232 standard is HP. > Back in the early 90's, our office used uVax 2000's, > connected to VT220's. along with various printers, > connected using DEC MMJ <> DB25 adapters. > You couldn't simply swap the DecConnect cables > because of the inverted MMP's on some of the cables. > All of our cabling and adapters were unmodified DEC products. Well, which adapter worked was obviously based on which cable you had. :-) You still got four combinations, two of which would make you happy. Johnny

17 years, 8 months

4
3
0 0

Screen burn. How long does it take to affect a tube?

by ian_primus＠yahoo.com

Everyone has seen old monitors/terminals with text clearly burned into the screen, or a grid of fuzzy boxes where the character cells line up, wear from many years of use and abuse. While graphic color tubes can and do develop screen burn (the Macintosh menu bar, and Windows taskbar being commonly found etched into discarded color monitors), the burn-in problem seems more prevelant on older, monochrome tubes. I use a fair number of old monochrome monitors, and a couple of terminals I use every day. Yesterday, I accidentally left a computer and it's monochrome monitor running unattended for about four hours (I forgot to shut it off/got distracted). When I returned, I carefully examined the areas where text had been on the screen, and could not detect any burn-in, although I can tell that the left side of the display has an oh-so-faint browning to it. Now, I am almost positive that this was there all along, after all - this thing lived a hard life before I found it. But, it got me thinking, how long does text need to be on the screen to burn into a monocrhome tube? Four hours doesn't seem like enough time - otherwise every PC monitor would have the WordPerfect ruler burned into it. I did some searching, but of course, could only turn up things relating to modern plasma screen TV's, which apparently suffer similar degredation from use. Were there any studies conducted, or actual ratings for picture tubes like this? The sort of tubes I'm referring to are standard monochrome CRT's, like the ones used in terminals and monitors in the early 80's. On a similar note, I was playing with a system test utility program for the Commodore PET. It tests the RAM and ROM, loops continuously and displays the test results and running time on the screen. The Commodore PET also uses this sort of monochrome picture tube - and unlike most other machines, you can't shut off just the screen and leave the computer running. So, this test program alternates every second or so between normal and inverse video modes. Now, since the screen is flashing, it shouldn't damage the phosphors - since it is my understanding that the phosphor burn phenomenon isn't so much the phosphors wearing out, but related to them being constantly excited, and therefore heating up and darkening. Is this correct thinking? While I don't plan on running this test for extended periods of time, I do wonder about it's potential effect on the screen, if any. It's interesting to see what's already burned into screens though, it gives an insight into what the computer used to do. I have terminals with logon promts burned into them, menu systems, and at least one with a dire confidentiality warning permently etched into the tube. I've got a Monitor IIe with "Apple //e" burned into the top - clearly someone left the computer on without a disk in it for a very long time to get that clear of a burn in. So, like I said, I just got curious about the whole thing, and figured I'd see if anyone else knew more on the subject. Obviously, I always try to be careful and shut things off when I'm not using them, but, you know, mistakes happen. -Ian

17 years, 8 months

3
2
0 0

Harvard v. von Neumann

by ploopster＠gmail.com

[I tried to send this before, but I don't think it went out. My apologies if you're seeing this a second time.] According to my reading, the Burroughs B5000 and Manchester Atlas were both Harvard architecture machines, and the GE-645 was von Neumann. Am I correct in my interpretation? Peace... Sridhar

17 years, 8 months

5
13
0 0

Commodore PET RS-232

by ian_primus＠yahoo.com

What options are there for adding an RS-232 port to a Commodore PET? The computer's user port has a different pinout from the C64 (although it uses the same connector), and the port doesn't have the serial output signals the 64 does. Therefore, the quick and dirty hacks that worked great on the 64 to provide serial won't work on the PET. What communications options exist/existed for the PET, aside from Commodore-produced IEEE-488 modems? Does the ROM include routines to handle such communication, like the C64, or would software need to be created for a particular interface? Is there a teminal emulation software available for the PET? I have an 8032, and an 8050 disk drive - but of course, the 8050 is completely incompatible with nearly everything else - serial communication would be a big help. This is new territory for me - the C64, I know. The PET... I'm learning :) -Ian

17 years, 8 months

9
10
0 0

68k homebuilts

by emu＠e-bbes.com

John Floren wrote: > Well, I wasn't thinking the MC68000 processor exactly, just something > from that family. I *do* have some experience with FPGA, so I'll > consider doing that as well. So check google/wiki for Minimig. It is an amiga 500 clone with a real mc68000 cpu and all peripherals in an FPGA. Seems to be a lot of fun. Cheers

17 years, 8 months

1
0
0 0

[BBC-Micro] PSU Failure

by jules.richardson99＠gmail.com

Mark Haysman wrote: > Hi. > > The X2 class capacitors fail, causing that smoke. That seems the most likely cause to me. I don't think I've ever seen a transformer in a switchmode supply go into meltdown. Not that shorted windings can't happen, but it's a very uncommon failure IME... cheers Jules

17 years, 8 months

1
1
0 0

The first video game

by wgungfu＠uwm.edu

Actually, Nolan and Ted Dabney's first foray in to video games. The two designed and built it together. Always amazes me how Nolan's PR over the years has effectively wiped Ted's contributions, and in some cases sought to rewrite history. Marty ----- Original Message ----- From: "Adrian Graham" <witchy at binarydinosaurs.co.uk> To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk at classiccmp.org> Sent: Saturday, December 13, 2008 11:26:13 AM GMT -06:00 Central America Subject: Re: The first video game On 13/12/2008 15:14, "Liam Proven" <lproven at gmail.com> wrote: > I never knew there was a coin-op Spacewar! > > http://www.theregister.co.uk/2008/12/13/tob_computer_space/print.html Yep, it was Nolan Bushnell's first foray into video games but didn't get too much money because it was too complicated for the 'average' user. From my own Atari page: " Whilst working at Ampex (creators of the first practical video recorder no less), Nolan Bushnell had already created an arcade video game based on Spacewar, which was a game written by Steve Russell in 1961 for the PDP-1 >from Digital Equipment. Nolan's version was called Computer Space and it was being distributed by Nutting Associates. However, it wasn't as popular as he'd have liked (he said you had to read the instructions, and people didn't have the patience!)" -- Adrian/Witchy Binary Dinosaurs creator/curator Www.binarydinosaurs.co.uk - the UK's biggest private home computer collection?

17 years, 8 months

3
2
0 0

HP 5036A built in demos

by glen.slick＠gmail.com

Anyone on the list have an HP 5036A microprocessor lab and not have a manual and not know that there are built in demo programs in the monitor ROM? RESET, FETCH ADRS, 0, 5, F, 9, RUN http://www.youtube.com/watch?v=73ShZ6zasfs RESET, FETCH ADRS, 0, 5, 3, E, RUN http://www.youtube.com/watch?v=RSwRafN5BjE RESET, FETCH ADRS, 0, 5, 5, A, RUN http://www.youtube.com/watch?v=QNw8h4O_OrQ (turn your speakers on if you watch the videos)

17 years, 8 months

2
1
0 0

Algol W

by kahrs＠caip.rutgers.edu

Wirth was at Stanford at the time and there is a Stanford Tech Report that gives the grammar and usage of Algol W. I presume everyone knows the joke; Wirth is call by name in Europe and Call by Value in the US. IMHO (but of course), the significant contribution of 'W is Call by Reference and Call by Result.

17 years, 8 months

1
0
0 0

Bootstrappable language

by ajp166＠bellatlantic.net

> >Subject: Re: Bootstrappable language > From: "bfranchuk at jetnet.ab.ca" <bfranchuk at jetnet.ab.ca> > Date: Thu, 11 Dec 2008 12:27:12 -0700 > To: General Discussion: On-Topic and Off-Topic Posts <cctalk at classiccmp.org> > >Dave Dunfield wrote: >> You don't need register to register operations to support a C compiler. >> >> Can you provide any details of your architecture and instruction set? >> >> It might be feasable to make a port of my Micro-C toolset to it... If >> not, it might be feasable to make a port of "C-flea" a virtual machine >> I designed specifically to support Micro-C (I've supported some pretty >> weird architectures by employing C-flea). >> >The architecture is like I said before a stretched PDP-8, with a >512 byte direct addressing range and more compleate set of alu operations. >I am exploring the idea that 18 bits is still the best size word size >for a small Have you lookd at DG Nova? Sounds like your traversing that same path. >computer or digital controller. The extra opcode bit is used to >support word & >byte sized operands, compared to the that of a 8 bit micro. The two more >address >bits negate the loss of byte addressing and give a bit more room for a >resident >OS rather than swapping core in and out. > >Using CPLD's also gives me the feel that a 18 bit simple cpu like my design >could have been developed as microchip computer similar to 6800 or 6502 >chip set around the time the Z80 was developed. Using 48 rather 40 pins >as packaging a 18 bit cpu with front panel support could have been >developed. > >A) Cpu chip. B) Swr/data/address bus display support chips . C) >data/byte swap buffer. > >> Micro-C is a very small, but reasonably powerful dialect of C - For an >> example, refer to the ImageDisk sources on my site ... ImageDisk and all >> of it's utilities are compiled with the PC version of Micro-C (as are my >> simulators, transfer tools and pretty much all of the other DOS based >> tools I've posted). >> >> Dave >> >> Btw: If you haven't written an assembler yet, let me know - I've got a >> universal table driven assembler generator which I developed to rapidly >> produce assemblers for many of the later architectures I supported. >> >> >Unlikely it will work , I have 9 bit bytes. >I have hacked, Jones's PDP 8 assembler to cross assemble for me. >Once I get the the single PCB board built later next year, then I >will consider porting Micro-C. I plan to only have about 64Kb + >bootstrap EEPROM, IDE interface and a two 6850 uarts >along with a front panel. I am not sure yet if the IDE interface will be >16 or 9 bits wide yet. > A table driven assembler can produce anything. Also a stack based language or even C can have the anythig stack related as multiple instructions only code efficientcy suffers and code size. An alternate way to go is a small emulation engine written in assebler to emulate a easier to compiler for virtual machine (P-code). The IDE can be 9 bits as the upper 8 (or less) bits are only used for data and a non required ops. I've done that for 8bits to simplify the interface and the only cost is 50% of the data space was not used, a minor nit as I had 500% more than needed. Allison

17 years, 8 months

3
4
0 0

DEC H-500 trainer manual anywhere on the net

by spasticcolin-cctalk＠yahoo.com

had a manual in the '70's but no trainer. now no manual and trainers are available.

17 years, 8 months

2
1
0 0

Raised floors

by vern4wright＠yahoo.com

I see one response saying that they predated the electronic stored program computer by about 40 years. Perhaps, I wasn't around that early. But I recall a GE installation at a university of the late 1950's that had the raised floor that became standard in the 1960's. As were a couple of IBM 7xxx systems. OTOH, a 650 I knew in 1957 was on concrete, as was a 1401 as late as 1967. Cabling was an issue, cooling the other. The 1401 was in a well-air conditioned room, and the cabling was OVERHEAD!! Damn cheaper than raised floor. Until the large systems of the middle 1960's required cabling be out of the way, it was as much a matter of convenience as anything else - you need to be able to truck trays of cards, paper, tapes in and out, and cables made that a problem. I'd be interested in the turn of the 20th-century-raised floors. Must make a note to look that up. Vern --- On Tue, 12/9/08, William Donzelli <wdonzelli at gmail.com> wrote: > From: William Donzelli <wdonzelli at gmail.com> > Subject: Raised floors > To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk at classiccmp.org> > Date: Tuesday, December 9, 2008, 6:08 PM > Here is an aspect of computer history not yet touched - when > did the > industry standardize on the 2 x 2 raised floor? Certainly > they were > common in the 1960s, but were they standard in the 1950s? > > -- > Will

17 years, 8 months

14
22
0 0

68k homebuilts (FW: MC68000 ECB SBCs?)

by lynchaj＠yahoo.com

Hi! I asked my friend Rolf in Germany about 68k home brew computers using ECB bus. Here is bunch of information on the subject which is in German. Fortunately the schematics are universal and there is Google Translate to handle the translation. He also has a nice photo shoot of the N8VEM SBC so you can see the home brew computer to give you an idea of what sort of system it is. http://www.hd64180-ecb.de/html/n8vem.html Although the N8VEM SBC may not be all that useful in a completed ECB 68k project, it could be used as a host processor while the 68k SBC is in development. If the /BUSRQ & /BUSAK lines are used, the 68k CPU can assume control of the ECB bus until the 68k releases it. That might be useful to use the Z80 SBC temporarily for a "kickstart" processor. In any event, the ECB backplane, ECB bus monitor, and ECB prototyping boards could be used "as is" with an ECB 68k SBC. Presumably developer could use the Disk IO and Terminal Replacement Board once those are completed as well. A 68k SBC certainly would be a welcome addition to the N8VEM project and I think you'd enjoy working with the team of builders. Thanks and have a nice day! Andrew Lynch -----Original Message----- Sent: Sunday, December 14, 2008 3:09 PM To: Andrew Lynch Subject: Re: MC68000 ECB SBCs? Hello Andrew, Am 13 Dec 2008 um 17:20 hat Andrew Lynch geschrieben: > > Hi Rolf! Do you know of any MC68000 or similar SBCs for the ECB? If > so do you have any links? > > I recall seeing a MC68008 ECB board on eBay once. > > Thanks and have a nice day! > > Andrew Lynch > > Info only in German. http://www.drcrazy.de/nkc/ http://www.schuetz.thtec.org/NKC/doku/cpu.html http://www.ndr-nkc.de/compo/68000/index.htm http://www.ndr-nkc.de/compo/datenblatt/processor.htm http://www.ndr-nkc.de/compo/doku/mc.htm http://www.audioschaltungen.de/Konzept.pdf MC68010 ECB BUS 16bit Version I have uploaded Files. You can download this when paste it into your Browser's Address bar. "http://www.hd64180-z80180.de/assets/download2008/68000_ct8410.zip" ca. 12,3 MB "http://www.hd64180-z80180.de/assets/download2008/68000_ct8411.zip" ca. 75,9 MB "http://www.hd64180-z80180.de/assets/download2008/68000_ct8412.zip" ca. 36,7 MB "http://www.hd64180-z80180.de/assets/download2008/68000_ct8412_2.zip" ca. 31,5 MB "http://www.hd64180-z80180.de/assets/download2008/68000_ct8501.zip" ca. 27,6 MB "http://www.hd64180-z80180.de/assets/download2008/68000_ct8501_2.zip" ca. 16,8 MB "http://www.hd64180-z80180.de/assets/download2008/68000_ct8501_3.zip" ca. 10,9 MB "http://www.hd64180-z80180.de/assets/download2008/68000_ct8505.zip" ca. 7,75 MB "http://www.hd64180-z80180.de/assets/download2008/68000_ct8506.zip" ca. 24,1 MB "http://www.hd64180-z80180.de/assets/download2008/68000_ct8510.zip" ca. 28,0 MB "http://www.hd64180-z80180.de/assets/download2008/68000_ct8511_0.zip" ca. 48,7 MB "http://www.hd64180-z80180.de/assets/download2008/68000_ct8511.zip" ca. 5,53 MB "http://www.hd64180-z80180.de/assets/download2008/68000_ct8511_X.zip" ca. 24,7 MB "http://www.hd64180-z80180.de/assets/download2008/68000_ct8512.zip" ca. 39,4 MB "http://www.hd64180-z80180.de/assets/download2008/68000_ct8602.zip" ca. 12,6 MB Thank you! Have a nice day! Rolf

17 years, 8 months

1
0
0 0

vintage CPU instruction sets

by roger.holmes＠microspot.co.uk

>>>>> > So, has anyone come across a good online resource which compares > vintage CPU > instruction sets? It'd be useful to see what 'core' instructions* > were most > common back in the day and use that as a basis for my own homebrew > effort;... Have a look here: http://www.ourcomputerheritage.org/ Around 40 machines from 1950 to 66. 17 machines from Elliott, 11 Ferranti, 3 Leo, 4 English Electric, 2 BTM and 5 ICT. For me the Elliott 900/920 series is particularly interesting, 4 op- code bits, a B line modifier and 13 address bits. I worked on compilers for this before writing one for the Zilog Z8001 to replace the 920 ATC. The language was Coral 66, and Algol 60 derivative for real time computing. The 900 had no OR,XOR or NOT instructions, but it did have a negate and add instruction, and if you had a word in memory holding the constant -1, then a negate and add -1 could be used to do a NOT. From this and the built in AND instruction could be built the other bitwise logic operations. There is no subtract operation either which meant that the order of evaluation had to be changed around within the compiler to use the negate and add instead. The other conditional jumps had to be constructed from jump zero, jump negative and unconditional jump. Increment but no decrement. No stack, no immediate operands, an accumulator (A) and a right side extension (Q) and a B register which could be used to modify any instruction allowing access to all 256k memory words (though only 128k of program). No carry flag so multi word arithmetic was hard work, including software floating point, thankfully built into hardware in the 920ATC. My other personal interest is the ICT 1301 which is memorable for having no program counter, in being 4 bit parallel, 12 digits serial, having no indexing instructions and being programmable purely in decimal. Even core memory is decimal, if you try to execute a non decimal digit the machine would stop at instruction fetch. If you directly hand key an instruction with a non decimal digit in the address field, the core memory will not respond (the CPU sees a zero) and stop the machine with a parity error unless parity checking has been turned off.

17 years, 8 months

1
0
0 0

OT: Forrest Mims resurfaces

by cclist＠sydex.com

A bit of spam in my inbox today from Jameco, shows that Forrest is still cooking up stuff: http://www.jameco.com/Jameco/PressRoom/recipe1.html Cheers, Chuck

17 years, 8 months

2
1
0 0

Source for MMJ cables.

by andy＠smokebelch.org

Hello, A little while ago I bought a "new" 10ft MMJ cable from That Website. Today I came to use it and discovered it was a crossover cable. So, my question is where can I buy a straight MMJ - MMJ? 10ft would be fine, longer perhaps better, and ideally a UK source. Whilst on the subject of DEC, I'm also looking for an ethernet card for a PDP 11/53 and perhaps a TK drive (assuming that if on power-up the drive wheel just spins continually and you can't lift the handle, the drive is broken). Cheers, Andrew ---------------- Andrew Back a at smokebelch.org

17 years, 8 months

7
12
0 0

IBM 5110

by chrism3667＠yahoo.com

is it likely I'd be able to read disks from this system on one of the following (all equipped w/8" floppy drives): IBM System 23/Datamaster Canon AS-100 NEC APC

17 years, 8 months

2
1
0 0

Looking for a 1/3 height Apple II type diskdrive

by jos.mar＠bluewin.ch

Subject says it all : I need to replace the floppy drive in my Lilith. The floppy PCB is so crappy that further repairs are pointless, PCB traces fall off whenever a soldering iron comes with smelling distance. Willing to pay reasonable amount, location Switzerland Jos.

17 years, 8 months

1
0
0 0

9 DEC H-500 Trainers on Epay

by innfoclassics＠gmail.com

Spotted on ebay... DEC H-500 computer logic trainers. I thiink it is a reasonable price and there is the chance to make an offer. Front panels look PDP-8 vintage. http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=200279483013 No connection with the seller, just spotted what I hope is an interesting item. Pax -- Paxton Hoag Astoria, OR USA

17 years, 8 months

4
3
0 0

WangEmu 2.1 released

by frustum＠pacbell.net

A new version of my Wang 2200 emulator, version 2.1, was just released after a three year snooze: http://www.wang2200.org/emu.html This version runs on Win XP/Vista, PPC OS X, or i386 OS X. Full source code is included. The big changes are support for large format disk geometries due to emulation of the intelligent disk controller protocol, 2200B mode, the ability to print directly to the parallel port, and a massive code clean up. Release notes: http://www.wang2200.org/emu/relnotes_2.1.txt

17 years, 8 months

1
0
0 0

68k homebuilts

by lynchaj＠yahoo.com

Hi everyone As a 4th year computer engineering student with a part time job, I definitely have too much time on my hands, so I've been thinking about doing something like building my own computer. I remember playing with the 68k SBCs back in my assembly class, so I thought something from that family might be an interesting choice. It's ambitious, but ideally I'd like to do 16/32 bits and a few megs of memory. Have any of you built something like this? I'm looking for links to project pages, shared experiences, and advice on what processor to use. Reminiscence is welcome too, if you have fond memories of such a thing :) Thanks John Floren -- Ph'nglui mglw'nafh Cthulhu R'lyeh wgah'nagl fhtagn -----REPLY----- Hi! If you are interested in home brew computing you are welcome to join us on the N8VEM home brew computer project. It is currently Z80 CP/M based but if you would like to explore 6800/6809/68k designs you could design your own SBC and reuse the peripheral board designs we have already. There is an SBC, an ECB backplane, an ECB bus monitor, and an ECB prototyping board available now. There have been 68k based ECB designs in the past although I am not an expert in how those work. As long as it uses +5, GND, Address, Data, and a variety of control bus signals it should work though. A Disk IO board (IDE and NEC765A FDC) and a Terminal Replacement Board (uses VGA monitor & PS/2 keyboard) are in the works. Several builders have projects as well such as a USB & network peripheral (!) which allows running CP/NET. There is another builder with a project that allows wireless serial communications and numerous interfaces to relays, etc. That same builder made an AT keyboard interface and a 20x4 LCD display with NVRAM controller. In short, you could focus on your 68k SBC design while leveraging the peripherals and standard bus components already available. Take it for what it's worth. You can contact me offline if you'd like more information. There are photos, schematics, PCB layouts, ROM images, parts lists, BOMs, and bunch of other stuff on the website. The PCBs are all $20 each. Good luck with your project! Thanks and have a nice day! Andrew Lynch http://groups.google.com/group/n8vem http://n8vem-sbc.pbwiki.com/

17 years, 8 months

1
0
0 0

ACCRC Sealed Bid Auction for Vintage Computers

by sellam＠vintagetech.com

The Alameda County Computer Resource Center (ACCRC) is forced to liquidate its computer museum due to the current economic climate. The VCF has been contracted to auction off the ACCRC museum to raise needed funds for their non-profit operation. I have put up the first batch of machines at the following URL: http://www.vintage.org/special/2008/accrc/ In order to use the system you must have a VCF Community ID. Getting one is simple: just following the links and prompts when you visit the site above and read the instructions. I have been cataloging the hundreds of items in the ACCRC museum and will be putting up auction lots weekly until the collection is dissipated. There are still many items to go (with lots of duplicates) so check back every week to see the latest batch. All items are offered as-is. Functional condition is unknown unless specified in the item description. For more information about a particular item, please contact the VCF and your inquiry will be answered as soon as possible. Winning bidders will be notified at the close of the auction (see below for closing time). In the event of a tie bid, the winning bid will be the one submitted the earliest. Upon receiving a winning bid notification, payment and pick-up at the ACCRC facilities in Berkeley, California, is preferred. Payment from winning bidders is due within 72 hours after the close of the auction. Non-payment will invalidate your high bid and the item will automatically go to the next highest bidder (no exceptions). Upon request, items will be packaged and shipped at bidder's expense plus a $25 handling fee. Payment in the form of cash, money order, or PayPal (in that order) is preferred. Personal checks will be accepted on the condition that they first clear the bank. All items must be sold. No reasonable offer will be refused. Your purchases will go towards supporting an organization that over the years has provided nearly 20,000 refurbished computers to needy organizations and individuals worldwide. 100% of the proceeds of this auction will go directly to the ACCRC (minus the handling fees, which are covering my time...barely). Please contact me DIRECTLY with any questions you might have of any of the items. I'll be happy to get more notes and photos on particulars items of interest from inquiring bidders. http://www.vintage.org/special/2008/accrc/ -- Sellam Ismail Vintage Computer Festival ------------------------------------------------------------------------------ International Man of Intrigue and Danger http://www.vintage.org [ Old computing resources for business || Buy/Sell/Trade Vintage Computers ] [ and academia at www.VintageTech.com || at http://marketplace.vintage.org ]

17 years, 8 months

2
1
0 0

USB Model M

by dm561＠torfree.net

Date: Fri, 12 Dec 2008 10:51:25 +0100 (CET) From: Christian Corti <cc at informatik.uni-stuttgart.de> Subject: RE: USB Model M I think this is not the classic IBM keyboard we're talking about. *The* classic keyboard has the part number 139140x where x differs from country to country. This is what's on the label of my keyboard (a rather new one, the oldest one I have dates from 1987 and came along with my 8550-021). There's no IBM logo on the bottom, only the oval grey logo on the top left. 1391403 55-0749972L 1386716 EC 528557 EC 528693 1992-06-23 MANUFACTURED IN UNITED KINGDOM (C) IBM CORPORATION 1985 PRINT BUILD TEST INSP 14A 60A (sig.) (sig.) Christian PS: The US version of the keyboard is the model 1391401. -------------Reply: Probably no point in arguing with someone who, because his particular keyboard does not say "Model M," therefore insists that "IBM *never* called the (Model M) keyboard a Model M." Presumably even if I sent him a picture of one of my 1391401s plainly labelled "Model M" he would not be convinced any more than he is by others on here and the extensive Wiki entry. Oh well...

17 years, 8 months

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More terminals and microcomputers to go in West Sussex, UK

by paul＠frixxon.co.uk

Here's another batch of things that I don't have time to play with. Same deal as before -- tell me you can come and collect them from Crawley, the sooner the better. Most of these are easily obtainable, so they will go to landfill if they aren't claimed. Sharp MZ-700 2 x Amstrad CPC 464, one boxed and clean, the other with the inevitable cracked cassette cover DEC Letterwriter 100 DECserver 200/MC (DSRVB-A) 2 x Commodore Amiga 500 Acorn Electron and games TI Silent 700 (the enormous briefcase one with acoustic coupler) 2 x DEC TK50Z drives 2 x Commodore 64 Motorola EXORterm 155 -- no keyboard with this. AVID video editing unit and the BBC micro that it was used with I've put photos of some of these on Flickr: http://www.flickr.com/photos/frixxon/ Paul.

17 years, 8 months

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HP Omnibook 600C startup disk?

by IanK＠vulcan.com

I picked up a nice little HP Omnibook 600C from someone here on the list, and after a few minutes of playing with it the hard drive decided it did not like its new home. Hey, no worries, stuff happens. It's a PCMCIA hard drive, so I plugged a CF card into a PCMCIA adapter and voila!, I have a new C: drive. But unfortunately, when the disk did its swan dive it took with it all the custom drivers and such that HP loads on it. That may explain why I can't get apparently simple things to work. So, does anyone have one of these machines or its startup disk, and are you willing to share? Thanks -- Ian

17 years, 8 months

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Looking for Olivetti Quaderno

by derschjo＠msu.edu

Title says it all... I've been looking for one of these for awhile. Picked one up off eBay awhile back but it was totally trashed (though I now have several spare batteries & accessories if I ever find a working one...) Anyone have one for trade/sale? Thanks, Josh

17 years, 8 months

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IBM 2.5" WD-280 80MB Drives: Free + Shipping

by trag＠io.com

I'm cleaning house a bit. I have four IBM Model: WD-280 2.5" hard drives. The interface is not IDE nor SCSI. I once managed to Google up a page with an extensive listing of 2.5" drives (laptop service company?) which indicated that the interface was something else, the name of which I no longer remember. Anyway, I have no use for these. If you do, email me, pay shipping and they're yours. If I do not hear from anyone in one week I will dispose of them. Two of them are still factory sealed. A third one's bag is opened but the drive passes a non-electrical inspection. The fourth one has an ominous rattle coming from inside as if the head arm is swinging around loose. If you do not want the fourth one, I am happy to ship only three. Other markings on the drive include: P/N 06G6449 FRU P/N 95F4708 MLC C99714 I hope someone has a use for these unusual drives. Jeff Walther

17 years, 8 months

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Small bootstrappable languages (Was: Re: PDF...)

by mtapley＠swri.edu

At 22:26 -0600 12/10/08, bfranchuk wrote: >Any good leads as am still looking for a small boot strapable langauge >here. Tiny C will not work >as my instruction set does NOT have register to register operations. I >plan to have a wopping >48Kb system as that was BIG memory 1975 ish. At 12:00 -0600 12/11/08, Jim Battle summarized: >Ben you have said these three things in this thread: > >(1) "Any good leads as am still looking for a small boot strapable >langauge here." > >(2) "Tiny C will not work as my instruction set does NOT have >register to register >operations." > >(3) "I could do Forth but it would be slow as I have no >auto-incriment registers and wound >need to use memory variables." Ben (?), I note that on: http://www.altair680kit.com/index.html or more specifically, http://www.altair680kit.com/manuals/Altair_680-VTL-2%20Manual-05-Beta_1-Sea… Grant Stockly refers to "VTL-2" from Gary Shannon and Frank McCoy. The manual says it requires 768 bytes to implement on a 6800 (which has, admittedly, a pretty flexible instruction set, including good stack operations). Not knowing anything more about your system or the language than what I've posted above, I still suggest it might be worth a look. -- - Mark 210-379-4635 ----------------------------------------------------------------------- Large Asteroids headed toward planets inhabited by beings that don't have technology adequate to stop them: Think of it as Evolution in Fast-Forward.

17 years, 8 months

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My return to Classic Cmp - San Diego, software archive, etc.

by tshoppa＠wmata.com

Hi Vern! Certainly Don was always happy and joyful to help out in any way he could with the contents of his archive and his ability to make odd-format floppies for any CP/M user. If you ever get to the archive, you'll find several dozen floppies (Compupro and VT180) that I sent his way. In the 1990's I was encouraging him to make disk images and make them publicly available. Tools at the time were teledisk etc. He was worried about copyright issues with a massively public on-the-net archive, he said. Tim.

17 years, 8 months

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Paper vs. PDF vs... (was: Re: Sources for 8b T...)

by mtapley＠swri.edu

At 22:26 -0600 12/10/08, Tony wrote: >Of course paper has the advantage that ... it withstands a >hot soldering iron a lot better than any computer does :-) Hm. I assume this refers to soldering iron settings below, as Ray Bradbury would put it, "Fahrenheit 451"? -- - Mark 210-379-4635 ----------------------------------------------------------------------- Large Asteroids headed toward planets inhabited by beings that don't have technology adequate to stop them: Think of it as Evolution in Fast-Forward.

17 years, 8 months

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Apple II keyboards

by us21090＠yahoo.com

All, I'm looking for a final accurate answer. When the Apple II's came out, the keyboard had a power-light that looked like a lit up key at the keyboard's lower left corner, below the shift key. Apple II+'s had a power-light that was (nearly) flush with the case. See these for comparison: http://www.vectronicsappleworld.com/ads/ads/appleii/howto2.jpg http://www.computercloset.org/apple2Plus.htm The question: Did Apple ever produce II's with this flush-power-light keyboard? I know the II and II+ lines were sold concurrently, so it doesn't surprise me if, for a time, the hardware was identical. All I've read (and which sounds definitive) the only initial difference was the ROMs. See the 1980 price list mid page two: http://www.barse.org/blog/archives/apple1980pricelist.pdf . In time, the II+'s motherboard's did go through changes Other, slightly related info It has an Apple II 16K model #: A2S0016. The motherboard is a Rev 4, which, if I understand it correctly, was used for both II and II+'s. The silkscreen on the MB near the "apple computer inc" text (above ROMs) says 1978. The manufacture date code (handprinted on MB corner near slot 0) is 7928-- 28th week (mid July) 1979. It has the AppleSoft/Auto-Start ROMs, but these were available as an upgrade. (The previous owner also added memory to 48K plus a language card). Oh yeah, the previous owner lost the lid!! All this is consistent with it being an Apple II. BUT one kicker is that the keyboard has a (nearly) flush power light that are used in II+'s. Thanks, Scott

17 years, 8 months

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Bootstrappable language

by mc＠media.mit.edu

bfranchuk at jetnet.ab.ca wrote: > Any good leads as am still looking for a small boot strapable langauge > here. Tiny C will not work > as my instruction set does NOT have register to register operations. I > plan to have a wopping > 48Kb system as that was BIG memory 1975 ish.>> > Your best bet is to write a byte-code interpreter in your native instruction set. If your architecture Turing-equivalent it doesn't matter what operations are missing. Tiny Basic, UCSD Pascal, Logo, Java, Scheme and lots of other languages have been implemented this way. Sure, this might be slower than a "native implementation," but you can always bootstrap a native compiler later if you have the time. Byte-code interpreters typically run faster than "regular" interpreters. If you can find it, I would recommend UCSD Pascal. It is a full-featured language (structs/records, etc.). I ran this on the Apple II in about the amount of memory you have.

17 years, 8 months

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OT? Heavy duty web hosting needed

by tosteve＠yahoo.com

Hello, My entire classic computer website is down for exceeding my monthly bandwidth allotment. I exceeded 60 Gigs in 2 weeks. Can anyone recommend a good host? I need 150+ Gig/month bandwidth. Thanks! Steven Stengel http://oldcomputers.net

17 years, 8 months

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Kennedy tape drive 9600

by silvercreekvalley＠yahoo.com

I'd like to try and get a Kennedy tape drive (9600) up and running and wondered if anyone had any advice or possible interface cards? The unit is complete and appears to be working, I have two 50 pin connectors on the back, and the ribbon cables to IDE connectors. This is the PERTEC interface I'm assuming? I'm ultimately wanting to connect this to a PDP 11, but initially it would be good to connect this some how to a regular PC. Are there any cards available to do this? I do have older PC's (this is vintage computing after all) ie with ISA slots which I'm guessing would be required. Anyway, any pointers/leads appreciated. Thanks Ian.

17 years, 8 months

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Happy DEC-10 day...

by mbg＠world.std.com

17 years, 8 months

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