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

by quapla＠xs4all.nl

All, During further sorting out of the stuff I collected from our company as part of their inventory cleanup I came across some Qbus industrial I/O boards. They are : A410 - IAV11-A 4/12 channel A/D converter A6007 - IAV11-B 4 channel isolated 20mA D/A converter A029 - IAV11-C 16 channel expansion mux. M6029 - IDV11-B 16 bit opto isolated output M8005 - IDV11-C 16 bit relay output M5026 - 16 bit opto isolated input with cable and bulkhead connector and a matching test connector for the IAV11-B All 6 cards are dual height ones and are very clean and still sealed in their a.s. bags. Make me an offer for one or more cards. As usual, the items are located in the Netherlands. Ed -- Dit is een HTML vrije email / This is an HTML free email. Zeg NEE tegen de 'slimme' meter.

14 years, 5 months

1
0
0 0

Tek 401x terminal motherboard?

by tshoppa＠wmata.com

> www.ebay.com/itm/260934669305 > Is this the motherboard for a Tek 401x? I think a 4014 is a 6 slot motherboard with a 6 slot extension and discrete connections on the short side not long side. Is a 4010 the same? It is vaguely reminiscent of many 70's era Tek backplanes... maybe this is for 0one of their early microprocessor systems?

14 years, 5 months

1
0
0 0

Vintage DEC/SUN/HP/MACINTOSH workstations/servers for sale

by janprunk＠gmail.com

Hello ! I am releasing my collection of old computer stuff. Only for personal pickup in Ljubljana, Slovenia. If you want the computer badly, the shipping wont be less than 40 EUR/piece inside Europe, for USA or Asia shipping, you better forget it ! The equipment consist of : ### DEC ### 1 x DEC VAXstation 4000/200 - 300 EUR 1 x Digital DEC 3000 - 100 EUR 1 x Digital DEC 2000 Alpha - 100 EUR ### SUN ### 2 x SUN Sparcstation 4 - 50 EUR/each ### HP ### 3 x Hewlett Packard Appollo 9000 712/60 - 50 EUR/each 1 x Hewlett Packard PC 9000 PC-308 (XT) - 50 EUR 1 x Hewlett Packard 9000 E35 - 50 EUR ### Macintosh ### 1 x Power Macintosh 7500/100 - 50 EUR The computers are released in "AS-IS" condition, some have been tested, the others have not, without any warranty. Please for any queries contact me directly to my E-mail address janprunk at gmail.com I don't follow the mailing list. Regards,Jan -- Jan Prunk?? http://www.prunk.si 0x00E80E86? http://pgp.prunk.si http://AS50763.peeringdb.com

14 years, 5 months

1
0
0 0

vaxstation video compability question

by dgahling＠hotmail.com

I have a question about video compatibility with the vaxstation. the vaxstations I have (3100s M76) come with a funky cable to output to 3 BNC connectors -R, G, and B. I just picked up a Sony LMD-1410SC Monitor which has RGB BNC connectors (and others). I looked at the specs for the Sony, but not sure it will work. the link for the specs is here: http://www.aegis-elec.com/products/sony-LMD1410SC.html I'd really like to replace the ViewSonic P810 Monitor I've been using for this, even though the P810 is a nice 21" monitor, it's an old CRT, meaning it's huge and weighs a ton. btw the viewsonic is free (for the cost of shipping) to a good home if this works. anyone know? thanks, Dan.

14 years, 5 months

2
1
0 0

PDP-11 Values from MFPT

by jhfinedp3k＠compsys.to

I have an interesting hardware question. I have been looking at the results for the program RESORC.SAV in RT-11 with respect the MFPT instruction. When the J11 chip is used, the value is 5 and the Maintenance Register at 177750 seems to determine what the rest of the actual hardware supports. I thought it would also be helpful for the user to know if an emulator is being used, either software or hardware, or if perhaps some other 3rd party hardware CPU. I would probably target the various 3rd party boards as far as hardware is concerned (such as QED and Mentec). For software emulators, I would suggest that only the high end PDP-11 processors be supported (the DEC CPUs which support the MFPT instruction) in order to keep things simple, at least initially. An incomplete list of software emulators is: SIMH Ersatz-11 An incomplete list of hardware boards is: QED - more than 1? Mentec - at least 3 and I can remember at least 2 others, but not the company names. Right now the Logical Co. has a combined emulator called a PDQ-1000 board which actually plugs into a Qbus which takes only 4 slots, but includes CPU, memory and many controllers. Thus far, the high order byte of the MFPT instruction always seems to be zero and is currently ignored by the RESORC.SAV program. Under SIMH and Ersatz-11, it would be trivial to use the high order byte of the MFPT instruction to signify which software emulator is being used. Can anyone who has a DEC (or non-DEC) PDP-11 system easily available determine the actual value returned by the MFPT instruction? As far as I know: MFPT Value Hardware 1 PDP-11/44 3 PDP-11/24 (should be 2) 3 PDP-11/23 4 SBC-11/21 5 All J11 chips including 11/73, 11/83, 11/93 I assume that it would be extremely difficult, probably not worth the effort, to modify the high order byte of the MFPT instruction at this point for the 3rd party PDP-11 CPU boards, such as from Mentec. Can anyone comment on this assumption? Might there be another way for hardware to the tell a user which 3rd party board is being used as a PDP-11? The other possibility is to use the Maintenance Register at 177750, although I suspect that there might not be any more bit available. Jerome Fine

14 years, 5 months

1
0
0 0

SDK-51 Assembly Manual

by wrm＠dW.co.za

> >I replied last time this came up. Maybe you didn't see that. Is your >manual the same as this one? Yup, that's it. Dunno why I didn't see anything last time. Thanks! Anyone interested in the paper copy? Postage from .za. W

14 years, 5 months

2
2
0 0

8in floppy 3 power plugs??

by tdk.knight＠gmail.com

i grabed a 8in shugart floppy drive off ebay got it yestday yay! anyhow i am looking at it and theres 3 power plugs? http://www.flickr.com/photos/1ajs/6682794995/in/photostream/lightbox/ and i don't have that style? and i will need to find me a cable for it and eventually a card of some sort for my 11

14 years, 5 months

10
25
0 0

S-100 6502 CPU board PCBs

by LYNCHAJ＠YAHOO.COM

Hi I have some left over S-100 6502 CPU board PCBs. Please contact me if interested. Thanks and have a nice day! Andrew Lynch

14 years, 5 months

1
0
0 0

Nice starting price, isn't it? ((Remember its not the whole machine its only the front panel))

by gerhard.kreuzer＠liftoff.at

Hi, is anybody out there, who have enough money for burning it? ebay Nr. 250964436666 could be a nice buy ..... With best whishes to all for 2012 Gerhard

14 years, 5 months

2
1
0 0

Commodore 64 question

by mcguire＠neurotica.com

Hey Commie folks. Did Commodore build a version of the 64 that looked physically like a 128? -Dave -- Dave McGuire New Kensington, PA

14 years, 5 months

24
63
0 0

Honeywell DDP-124 manuals...

by geneb＠deltasoft.com

I've got two copies of the Honeywell DDP-124 Instruction Manual Volume II (Timing/Flow Diagrams and Instruction Analyses) that need a new home. Hopefully someone can scan one or both of them. They're dated 1967 and the comb binding isn't faring so well after 44 or so years. They're an odd size - 11" x 15". The DDP-124 was the computer behind the Conductron-Missouri 737-200 and 727-100 flight simulators I used to work on. It ran the flight model & motion base. The visuals were provided by a Sperry machine (Vital II) for the 737 and a Varian 610 (Vital I) for the 727. g. -- Proud owner of F-15C 80-0007 http://www.f15sim.com - The only one of its kind. http://www.diy-cockpits.org/coll - Go Collimated or Go Home. Some people collect things for a hobby. Geeks collect hobbies. ScarletDME - The red hot Data Management Environment A Multi-Value database for the masses, not the classes. http://www.scarletdme.org - Get it _today_! Political correctness is a doctrine, fostered by a delusional, illogical minority, and rabidly promoted by an unscrupulous mainstream media, which holds forth the proposition that it is entirely possible to pick up a turd by the clean end.

14 years, 5 months

2
2
0 0

SDK-51 Assembly Manual

by wrm＠dW.co.za

*tap* *tap* I tried posting to the list a few weeks ago, don't think it worked. I saw on http://manx.classiccmp.org/details.php/47,13105 that the SDK-51 assembly manual's not available as a scan, so I scanned my copy, which is taking up space. So, anyone interested in the scan, and anyone interested in the original, which I will otherwise (shock, horror, but I really need to get rid of stuff) chuck. W

14 years, 5 months

4
3
0 0

Cromemco FDC

by wrm＠dW.co.za

David Riley wrote: >Ooh, another place I can find 4116s cheaply (even more so than Jameco). >Wish I'd known about this place when I was fixing my Defender boards! I replaced the 4116s in my Apple with 4164s. OK, it's not original (you should have seen the mix of 4116s that came out of there) and you only use a quarter of the chip but it doesn't need all those pesky voltages and they run cooler too. W

14 years, 5 months

3
2
0 0

[TRS-80] Re: Model I for sale (fwd)

by geneb＠deltasoft.com

I'm not able to get this one, but hopefully someone on this list may be interested in it. Tnx! g. ---------- Forwarded message ---------- Date: Sat, 14 Jan 2012 01:18:10 -0000 From: pauls1950 <paulstephens at Q.com> Reply-To: TRS-80 at yahoogroups.com To: TRS-80 at yahoogroups.com Subject: [TRS-80] Re: Model I for sale I thought I had it taken but it fell through so here is a list of what I have: TRS Model 1 , converted to level 2 16K,original CRT, expansion interface, modem, two original floppy drives, cassette, assembler programming tapes and docs, several boot disks, LDOS, TRSDOS, NEWDOS etc..., Tech manual (scematics and diagnostics), programming manuals. I tried booting it today for the first time in 15 years?? and although the CRT lights up I don't get any output to it - with and without the expansion interface connected so it is in need of repair (either the monitor or the video circuitry in the CPU. I am asking just $100 for everything but whether I get any money for it or not it either gets a new owner or it goes to be recycled. I am in Seattle you can contact me by phone at 206.725.0881 or by email at paulstephens (at) q (dot) com. Please someone take this system - all hardware is original RadioShack. Paul --- In TRS-80 at yahoogroups.com, "pauls1950" <paulstephens at ...> wrote: > > I have a 1978 model I with expansion interface, two floppy drives, lots of manuals and software. This is a complete system and documentation. I am moving and never use it anymore so I need it to go to a good home. > contact me at paulstephens at ... or 206.725.0881 if interested. > > Paul > ------------------------------------ Using an emulator? Please join!Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/TRS-80/ <*> Your email settings: Individual Email | Traditional <*> To change settings online go to: http://groups.yahoo.com/group/TRS-80/join (Yahoo! ID required) <*> To change settings via email: TRS-80-digest at yahoogroups.com TRS-80-fullfeatured at yahoogroups.com <*> To unsubscribe from this group, send an email to: TRS-80-unsubscribe at yahoogroups.com <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/

14 years, 5 months

1
0
0 0

DiscFerret -- URGENT software update

by classiccmp＠philpem.me.uk

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hi guys, I've released a new version of the DiscFerret interface library and microcode. This is libdiscferret v1.5, with microcode release 0x0028. The reason I'm declaring this an urgent update is because in an earlier release of the microcode (possibly back to the initial release) introduced an extremely nasty bug... This bug WILL corrupt the data read from the disc if either * An index pulse arrives at the same time as a flux transition, or * The counter overflows immediately before a transition. In either of these cases, the flux transition will be dropped, and either a Counter Overflow or an Index Trigger byte will be stored instead. For extra bonus points, the counter overflow logic made it absolutely impossible to represent a counter value of 127, or a multiple thereof. These would cause an overflow store... followed by another count up. The transition would be completely ignored. This basically means that any disc image created with any microcode release earlier than 0x0027 (i.e. libdiscferret 1.4 or earlier) should be considered unreliable and not an accurate representation of the data on the disc. These images should be discarded and the discs re-imaged. To resolve this problem I have: 1) Re-engineered the data coding format and the disc-reader logic to prevent a counter overflow or index store from causing a missed transition 2) Completely rewritten the testbench to remove the stupid mistake which allowed these mistakes to slip through the net in the first place. 3) Changed Magpie (the disc image reader) and Merlin (the analyser) to create "DFE2" format files. Attempting to load a "DFER" image into Merlin will work, however it will warn you that the data may be inconsistent. I've screwed up bigtime here -- a tool designed for data preservation should most definitely NOT have had bugs like this. I can't believe I screwed up the design so badly, and I've been cursing at myself since the bug was reported on the DiscFerret IRC channel (#discferret on irc.freenode.net) last week. An even more subtle bug in the test bench code rendered all my tests pointless (basically: the test_fail() function would cause the testbench to abort with a 'success, tests passed' code). The aforementioned test benches have now been rewritten from scratch in a way which will hopefully prevent this kind of thing from happening again. Yes, I am doing both positive and negative testing, and testing the testbench framework. I've left the "torture test" testbench running for several hours with various types of input waveform, including some which would cause timing violations on other parts of the circuitry (specifically, the input filters). No timing violations or data errors were detected, even under these challenging (and in some cases outright impossible) scenarios. The output data matches the hardware model and my specification documents *perfectly*. No doubt some vendors of similar products will take this opportunity to take a dig at me and my product. Whether they choose to act in this highly unprofessional manner is entirely up to them. However, please bear in mind that my code is available for peer review, and I accept submissions of code from others (and bug/feature requests). The bug tracker (Mantis) is open to the public. How many other projects like DiscFerret operate with this level of transparency? The software update is available to download, free of charge, from the usual download source: http://www.discferret.com/ (click the Downloads link on the left hand side). As always, if you have any issues with your DiscFerret, please feel free to contact me -- either by email, the DiscFerret mailing list, or on IRC (philpem on irc.freenode.net). Thank you all for your time. - -- Phil. classiccmp at philpem.me.uk http://www.philpem.me.uk/ -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.11 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iQEcBAEBAgAGBQJPDgjqAAoJEBWrukZv/+iU2D8IAMU33sK0Q3Psa24xmMOi5mah yBMvCXqPAatqtt2HkUBhn/Lp4fiMxUiIxfbfc2itqpHccxNKNoIlNg0agUK1YSoS H1zACCtoAlSWUvg6yN2p8X5OYVYOXiO0FLNEmnal7CvwBPIwktzBkO4LRkR1WydG rK99EL1fyFZYTQ74SUZ1YSTW3PqPg8Sw4N8eYnODyVTfcNxkiwSklaeupdqu9Tpf 2HoG2YlFKo9/KyBIF4iqy3w092zVhAcv/Z7HG9rhlB+bgYhdmFrX0tNvZLRQTeUZ ruElVDhDv6D/O1hgNqN7QtguekMjNz8FaTfFurq1CsQeWjrMDDop25vjzp9qnwU= =uk9i -----END PGP SIGNATURE-----

14 years, 5 months

2
2
0 0

DEC-11-AJPB-PB paper tape

by iamvirtual＠gmail.com

Does anyone have an electronic dump of the Basic-11 paper tape for the PDP-11? I am looking for Version 007A that was released 10/22/70. The id of the paper tape is: DEC-11-AJPB-PB PDP-11 BASIC V007A 10/22/70 Many thanks! --barrym

14 years, 5 months

2
2
0 0

Tek 401x terminal motherboard?

by legalize＠xmission.com

www.ebay.com/itm/260934669305 Is this the motherboard for a Tek 401x? -- "The Direct3D Graphics Pipeline" -- DirectX 9 version available for download <http://legalizeadulthood.wordpress.com/the-direct3d-graphics-pipeline/> Legalize Adulthood! <http://legalizeadulthood.wordpress.com>

14 years, 5 months

1
0
0 0

What's an Intel 4040 worth?

by jonas＠otter.se

> The 12/7 uses a Z80 processor with 2 Z80-DMA chips, one ot read in > characters from the host, the other to send them to the printhead > ciruirry. I nthe 700, the DMA chips are effecively each replaced by a Z8. > In both cases there's a correction PROM fro the printhead chracteristics > to correct the pin fire timin, programemd for that particular printhead. > Yes, they're that precise. I wonder how they measured the printhead characteristics for the correction PROM. Did you have to replace that PROM if you changed the carriage motor, for example? /Jonas

14 years, 5 months

2
1
0 0

What's an Intel 4040 worth?

by jonas＠otter.se

>> environment. They were built like tanks. The print head used a patented >> "flexhammer" system, instead of pins the dots were made by leaf springs >> which had their ends bent over and shaped to a little square point. The >> springs were held bent off the paper by solenoids, which de-energised to >> print the dots, whereby the spring would shoot forward against the paper > What happened wehen the power went off? Presumably all the springs hit > the paper. Did this mean you could damage the head by moving paper/ribbon > with the ppwer off? And how did the springs get back to the soenoids when > the pwwer was turend on again? (were the solenoids powerful enough to > attract the leaf prings back?) No, as a previous poster mentioned, below the head was a little rubber bladder that pushed the head against the paper when printing, normally it would be angled slightly away from the paper. The head ran across the paper supported by the usual bearings running against a bar at the bottom IIRC, and a solid bar that ran across the paper at the top. I seem to remember that many printers of the time supported the top of the printhead against a wire, and using a bar instead was said to be a big advantage. To print, the head would be pushed against the paper by filling the bladder with air. I don't think there was a compressor in the printer, IIRC just some sort of solenoid in the bottom of the printer pushed against another bladder. The two bladders would have been connected with a little tube that moved with the head. My memory is not too clear about the details here. So what would have happened is that all the magnets in the head were energised, the bladder was expanded and the head run across the paper while working the magnets and springs, at the end of the stroke the bladder would be released and the magnets de-energised while the paper moved, and the process repeated while the head went back across the paper for the next line of dots. It was quite fast as well. We had the two colour version but used all black ribbons which were cheaper, IIRC there was a DIP switch to say whether the ribbon was red and black or all black. IIRC the ribbons were rather like typewriter ribbons, on reels, and you would have to thread the ribbon through the mechanism. The ribbons would come with a pair of plastic gloves so that you didn't have to get your fingers dirty. >> You would love one, I'm sure I would if I could find one and if I had > Indeed it appears I would... > >> room for it... Absolutely the nicest printer I have ever seen. > Hmm.. I think for dot matrix printers that honour has to go to the > Sanders 12/7 (or maybe the 700) machine. This is a 7 pin dont marrix > printer that is so well made that some fonts use 8 passes of the > printhead -- and it is worth doign that. They do things like justifying > text, lining up columns, etc. > Ah, but I haven't seen one of those ;-) It sounds quite amazing. Another nice printer I have come across was a Qume daisywheel printer, it was connected to the PDP-11/40 at the department of applied electronics at the university, which I used for my master's thesis. They had the manual for it, which included the circuit diagrams and technical description. Lots of analogue servo mechanisms. /Jonas

14 years, 5 months

2
1
0 0

Hazeltine Green

by popeye＠p-t-b.com

Does anyone have an idea of what color "Hazeltine Green" (phosphor) is, or might be, or where that info could be found? My question is regarding web and programmatic simulations of green phosphor monitors. (in an attempt to be somewhat accurate and also have them look "right") -- Quinn

14 years, 5 months

13
20
0 0

Defender power requirements?

by fraveydank＠gmail.com

I have two working Defender board sets that I'm almost ready to start building cabinets for. I'm scoping out new power supplies (I have the linear ones they came with but no giant transformers for it; I've been using PC power supplies but would like to use something with no moving parts). Does anyone know the approximate rail requirements for it? They don't seem specced in the drawings/theory of operation manuals anywhere. An old 230W AT power supply seems to work fine, but I don't think I need anything that heavy-duty. I know the 5v is going to pull a lot because it's used for most of the logic, and the regulated 12v and -5v are probably somewhat heavy since they power the sense amps for the 24 4116s. As far as I can tell, the unregulated 12v is only used to power the audio amp and the -12v (unregulated) is only used for the negative reference on the audio DAC; am I missing anything? I haven't measured current draw per rail yet, mostly out of laziness (and missing a few sizes of .156" plugs). BTW, the Apple color monitor they sold with the IIgs works great as an arcade monitor in a much smaller size if you can set the sync polarity correctly. Fortunately, Defender has solder jumpers for selecting that. - Dave

14 years, 5 months

5
13
0 0

Toyota problems: tin whiskers to blame?

by driley＠mantaro.com

Hopefully another nail in the coffin for lead-free solder: http://www.edn.com/article/520531-Toyota_accelerations_revisited_hanging_by… It's a very brief summary, but it links to the entire NASA presentation. - Dave

14 years, 5 months

2
1
0 0

Speaking of programming languages for teaching

by legalize＠xmission.com

This paper might be interesting: "Snobol4: A Computer Programming Language for the Humanities" <http://www.robertgaskins.com/files/gaskins-gould-cal-snobol4-1972.pdf> -- "The Direct3D Graphics Pipeline" -- DirectX 9 version available for download <http://legalizeadulthood.wordpress.com/the-direct3d-graphics-pipeline/> Legalize Adulthood! <http://legalizeadulthood.wordpress.com>

14 years, 5 months

10
18
0 0

for the Prolog and Forth nerds

by spectre＠floodgap.com

For people such as myself who are inordinately fascinated by Prolog, and terribly intimidated by things like the Warren Abstract Machine, here is a practical subset of Prolog written in the much easier to implement Forth along with various companion articles (including one on SKI combinators). http://soton.mpeforth.com/flag/jfar/vol4.html -- ------------------------------------ personal: http://www.cameronkaiser.com/ -- Cameron Kaiser * Floodgap Systems * www.floodgap.com * ckaiser at floodgap.com -- A penny saved is stupid. ---------------------------------------------------

14 years, 5 months

2
2
0 0

Dr Dobb's Journal

by fpersen2000＠yahoo.com

Greetings; Like many of you here I am an old time home computer guy who got his start in 1976 when I built my first computer, an Altair 8800. I am writing to get some information on a number of Dr Dobb's Journals that I wish to sell. I would like some input on what an honest price would be. I am also trying to determine if I should sell these one by one or in volume sets. I have the following: Volume number? Issue # 1??? ??? ???????????????? 1,3,6, 10 2????????????????????????? 1,2,3,4,5,6,7,8,9 3????????????????????????? 2,5,6,7,8,9,10 4?????????????????????????? 1,3,4,6,7,8,9,10 5?????????????????????????? 1,2,3,4,5,6,7,8,9,10 6?????????????????????????? 1,3,4,5,6,7,8,9,10,11,12 7??????????????????????????? 2 Your input would be appreciated. Frank Relotto

14 years, 5 months

1
0
0 0

Fortran integers (was: Re: Right toolf for the job...)

by mtapley＠swri.edu

At 1:01 -0600 1/5/12, Mouse wrote: > > [In FORTRAN, a]ny variable whose name starts with the letters I J K L >> M or N (alphabetic letters between I and N (which is the start of >> "INteger")) is assumed to be an int, unless you tell it otherwise. > >...and others are assumed to be real. But is the first two letters of >"integer" where that came from? I'd always assumed it came from >mathematical convention, which uses letters i through n (often modified >with subscripts and the like) for things such as summation indices that >are most appropriately translated into programming languages as >integral types. "Perrier". (H to O, exclusive) Sorry for long-delayed response, and bad pun. -- - 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.

14 years, 5 months

1
0
0 0

Acorn luggable

by aek＠bitsavers.org

forgot to mention this while the auction was going http://www.ebay.com/itm/120837824705

14 years, 5 months

4
3
0 0

about the Apollo disks

by chrism3667＠yahoo.com

I'm not on the net everyday, I'm working my way through the dialog. What's most important is that someone who w/o doubt can image them. I don't care about the physical disks so much. Just that they're in the hands of someone who can make the most of them (and yes I would like to partake in the digital booty). All I have thus far is an Apollo m/b. Don't even know if it works, but maybe someday...

14 years, 5 months

1
0
0 0

Commodore 64 question

by dm561＠torfree.net

----- Original Message: > Date: Thu, 12 Jan 2012 12:36:03 -0800 (PST) > From: Gene Buckle <geneb at deltasoft.com> <snippage> > For those interested: http://www.pagetable.com/?p=46 - there is a zip file > linked there that will allow you to create byte-exact versions of the > following versions of BASIC (using the cc65 assembler): > Commodore BASIC 1 > OSI BASIC > AppleSoft I > KIM-1 BASIC > Commodore BASIC 2 (PET) > Intellivision Keyboard Component BASIC > MicroTAN BASIC What, no 8K AIM65 version? Hrmph! BTW, thanks to Dwight and another AIM65'er the ROMs and manual for the little-known AIM65 Pascal have been (re)discovered and the original author is even still around, so as soon as we get past the memory map issues hopefully there will be *four* languages for the AIM65: BASIC, Forth, PL/65 and Pascal (plus the assembler of course). mike

14 years, 5 months

1
0
0 0

Connect Shugart SA850 to PC

by shadoooo＠gmail.com

No problem at all to build up the cable. The problem is that I don't know how to set the jumpers on the drive. Andrea

14 years, 5 months

1
0
0 0

"Modern" e-mail clients suck! (Was: QUOTING (Was: Truce, compromise reached? - Re: teaching programming to kids - Re: Looking for 8080/Z80 BASIC

by dm561＠torfree.net

-------- Original Message: > Date: Wed, 11 Jan 2012 19:18:12 -0500 > From: Dave McGuire <mcguire at neurotica.com> > Subject: Re: "Modern" e-mail clients suck! (Was: QUOTING (Was: Truce, > compromise reached? - Re: teaching programming to kids - Re: Looking > for 8080/Z80 BASIC > Is this where we get to compare resumes? Oh goodies! Add another digit > to the quoted number of machines in your current datacenter and then > you'll be in the right order of magnitude to compare to datacenters that > I've managed nearly single-handedly. ... > I'm a professional... --- You wouldn't know it from reading your "mine's bigger than yours" posts like the above and your customary "I'm right and you're an a**hole", not to mention the amount of time you seem to have for these tired same-old same-old MS/Win-bashing threads every couple of months; they really don't do much for your professional image. Just imagine how much more work you could get done if you practiced a little restraint...

14 years, 5 months

3
2
0 0

VT220 Keyboard Error 4?

by jacob.ritorto＠gmail.com

ever figure out how to fix this? All twenty of my (poorly warehoused) vt220s are doing this! thx jake

14 years, 5 months

7
6
0 0

Fear of firing up (was Re: An unplugged computer is a sad thing to see)

by terry＠webweavers.co.nz

On a related note, what are people's feeling's about the following.... I've recently had some discussions with someone who collects a particular brand of classic computer from the early 1980s. He has a few of these but they are never, ever switched on or tested. He doesn't want to test them as he feels doing so may damage the old electronics. Consequently they are never plugged in. This attitude is an anathema to me. I strive to maintain computers in my collecton so they can be fired up and demonstrated to people working as they were in the day. Otherwise they are inert "dead" collection of metal and plastic (still of interest as regards case design maybe). I like to know if a computer is working or not, and if not perhaps try to fix it. To me, if you won't start up an old computer for fear that something will (or has) failed then, for practical purposes, it's broken. The end result is the same. It's inert. Is this "scared to switch on" attitude common in the classic computer community, or do most reflect the same feelings I have about it. Terry (Tez)

14 years, 5 months

11
15
0 0

"Modern" e-mail clients suck! (Was: QUOTING (Was: Truce, compromise reached? - Re: teaching programming to kids - Re: Looking for 8080/Z80 BASIC

by dm561＠torfree.net

> Date: Wed, 11 Jan 2012 10:58:51 -0200 > From: "Alexandre Souza - Listas" <pu1bzz.listas at gmail.com> > I'd like to understand what you, old buffs, has with newer technology. > I have gmail and (personal servers) accounts, use web, windows XP and have > NO problems with all of that. > > Someone here is clearly wrong. I think what you have to keep in mind is that, as in most instances of closed minds, prejudice and ignorance, the very people who bad-mouth Windows, Yahoo etc. the most also brag the loudest that they would not stoop to using it; therefore they obviously have no relevant experience and their opinions have no more authority than a KKK member's opinion of a non-caucasian's intelligence. Fortunately their frequent personal attacks on anyone who's 'on the other side' are generally less violent... ;-) It's probably safe to say that on average Windows users are more interested in just _using_ their computers than in tuning and tinkering and as a result probably have more issues than your average Unix or Linux user, but that's more a reflection of their interests or needs, not their intelligence or even their computer's OS. But if a business' Windows system really needed rebooting every day I suspect their IT person would very shortly be looking for another job. And when people who say they support a Windows installation complain about not being able to back up or migrate to another disk/computer as I read in the previous round of this tedious ritual, that tells me more about their competence than any flaws in Windows (and there are some, to be sure). Sadly, no matter how often or how many people complain that they're tired of these rants, the folks in question either don't care or just can't help themselves. Apologies for adding to the pile... m

14 years, 5 months

10
14
0 0

Sun 1 optical mouse

by nick.allen＠comcast.net

Anyone have a sun1 optical mouse for sale/trade? It would go to either a Sun 1, 100, 100u or Sun 2 workstation?

14 years, 5 months

2
3
0 0

FS: $0 BA350 filler faceplate, $20ish BN21V Y SCSI

by jtp＠chinalake.com

- BA350 filler/faceplate, standard DEC tan, clean front - needs a home for the price of shipping - DEC Y SCSI BN21V-0B (2 F AMP - 1 M HD50), $2O or other reasonable offer -Jim/Boston jtp..chinalake.com

14 years, 5 months

1
0
0 0

MakeSLC meets at the Computer Graphics Museum every Wednesday

by legalize＠xmission.com

MakeSLC @ Computer Graphics Museum 7pm to 10pm 653 S. State Street Salt Lake City Free and open to the general public -- "The Direct3D Graphics Pipeline" -- DirectX 9 version available for download <http://legalizeadulthood.wordpress.com/the-direct3d-graphics-pipeline/> Legalize Adulthood! <http://legalizeadulthood.wordpress.com>

14 years, 5 months

1
0
0 0

What's an Intel 4040 worth?

by jonas＠otter.se

>> > for aprticualr ICs which then go to collectors who never power >> them up... >> They were a dot matrix, very fast and had a pneumatic bladder under >> the head to lean it forward to the platten. >> Zinc diecast case I think >> iirc one 4040 did machine control the other was input >> buffer/character >> set to pin pattern > > I suddently want one of these :-) I can't see it would be worth > shipping, > so I am unlikely to get one, but it sure sounds fun.... > Yes, you do want one (or two) of those :-) I used them a lot during the '80s. We had one at work as our main printer for listings etc, and we sold a bunch to a customer who used them for printing pallet labels with barcodes and large text used on their production line for submersible pumps, in a dirty industrial environment. They were built like tanks. The print head used a patented "flexhammer" system, instead of pins the dots were made by leaf springs which had their ends bent over and shaped to a little square point. The springs were held bent off the paper by solenoids, which de-energised to print the dots, whereby the spring would shoot forward against the paper to make the dot and then rebound and be held by the magnet again. They claimed the printheads had a life of a billion characters or something like that. They would print on just about anything up to thin card, provided it had tractor feed holes. They were absolutely indestructible, you could probably run over it with a lorry without even denting it. The only thing that ever broke was a small bulb in an optical encoder on the carriage motor, that had to be replaced about every other year. There were two models, the 4540 which was two-colour (black and red), and the 4544 which was four-colour with a very wide ribbon. Ours had the serial interface board with barcode option, which had its own processor to generate graphics, very large characters and barcodes. I can't remember them using 4040s though, I think ours had a Z80 on the main board and another on the interface board. I may be wrong though. You would love one, I'm sure I would if I could find one and if I had room for it... Absolutely the nicest printer I have ever seen. /Jonas

14 years, 5 months

4
3
0 0

Cromemco FDC

by dm561＠torfree.net

----- Original Message > Date: Wed, 11 Jan 2012 00:44:13 -0800 (PST) > From: Fred Cisin <cisin at xenosoft.com> ... > I meant that a 1.2M drive is a poor choice to use for the Cromemco 5.25" > formats, as a substitute for his TM100, because, as you said, it is > really a small 8" drive instead. > > It sounded like he was trying to use 1.2M drives for the 400K 5.25" > formats. That CAN be made to work, but introduces a few unnecessary > hassles. Yes, you're right; it can substitute nicely for an 8" drive but not a 5.25" DD drive. >> If by 80track/double density you actually mean 'quad' density, that's not >> really supported although if the drive also rotated at 300RPM instead of >> 360 then I suppose you could use 1/2 of it as a 360K DD disk. > > I have seen 800K "quad" disks from Cromemcos. (I detest the term "quad > density", since it is double density with more tracks, resulting in quad > CAPACITY, but not quad density on the tracks.) Agreed; a confusing term which is why I put it in quotes, but unfortunately the one folks usually use. You've obviously seen a much wider variety of disks than I have and I don't doubt that Cromemco used 'quad' disks somewhere, but I don't think the RDOS on the FDC supports that format. >> If you want to go to the trouble of making a 34<>50 pin adapter then >> you're >> good to go; on the other hand, the nice thing about the FDCs is that they >> have both 34 pin and 50 pin headers, so as long as you connect the /ready >> signal to pin 34 of the 34-pin header you can put all 4 drives on the >> same >> 34-pin cable in any mix of 5.25DD, 5.25HD and 3.5HD . > > I had heard (incorrectly?) that the 34 pin connector was only configurable > for the 5.25" data transfer rates (125K, 250K) V the 50 pin connector > being configured for the 8" rates (250K, 500K) > > Is that completely wrong? The signals that are relevant on the 34 pin connector are in parallel with the equivalent signals on the 50 pin connector, so the controller doesn't know or care which connector is being used. The extra 8" signals are not relevant to the HD drives except for the /RY signal which is not used by 5.25" DD drives like the TM100 but is expected from an 8" drive and thus has to be jumpered from (50)-22 to (34)-34. m

14 years, 5 months

2
1
0 0

Epson HX20 terminal emulaotr (and other software) wanted.

by fjkraan＠xs4all.nl

> I am looking for a terminal emoulator program that runs on the Epson HX20. > The copy of SIDHA-Dialog that was on a website is corrupt. I contacted the > website owner, he agrees, in fact it's not a tar fiel atall, but an html > error page!. Does anyone know of a terminal emulator for the HX20? In http://electrickery.xs4all.nl/comp/hx20/doc/EpsonTechSuppManS1_2.pdf are simple BASIC examples for file transfer. I remember making a very simple (half-duplex) terminal program of similar routines. Not as good as the real stuff, but better than nothing... Fred Jan

14 years, 5 months

1
0
0 0

Cromemco FDC

by dm561＠torfree.net

> Date: Wed, 11 Jan 2012 01:03:09 -0800 > From: Josh Dersch <derschjo at mail.msu.edu> > To: General Discussion: On-Topic and Off-Topic Posts > <cctalk at classiccmp.org> > Subject: > Message-ID: <4F0D504D.9060302 at mail.msu.edu> > Content-Type: text/plain; charset=ISO-8859-1; format=flowed > > On 1/10/2012 3:00 PM, Fred Cisin wrote: >> Are you attempting to format single or double sided? WHICH is your >> TM-100? >> Are you attempting to format 40 track or 80? > > It's a TM-100-2A (originally from an IBM PC). Formatting single sided > at the moment, 40 tracks. I didn't see an answer to my question whether you're correctly specifying the drive/disk type for RDOS? d;;;xy where d=drive (A) ;;; = 5.25" x=sides (S or D) y=density (S or D) Also, what speed is your Z80? As mentioned, if you're using the 40 track DD format you have to use a 40 track DD drive; an 80 track DD drive might work, but an HD drive spins at the wrong speed, among other issues. As a matter of fact at the time Dave and I both worked on a version of what became his RT program, but I gave up while he obviously persevered; I don't think there were any gotchas in his final version but now I'm going to have to try it out again just to get reacquainted. m

14 years, 5 months

2
1
0 0

"BASIC English" vs. natural languages

by RichA＠vulcan.com

From: Chuck Guzis Sent: Monday, January 09, 2012 10:10 PM > On 9 Jan 2012 at 21:09, dwight elvey wrote: >> Of course, English isn't the only natural language but some think it >> is. > No, but Basic English (note the caps) has a pedigree: > http://en.wikipedia.org/wiki/Basic_English > To the best my knowledge, other languages, say, Old Church Slavonic, > do not have a similar pedigree.. What do you mean by "pedigree" in these statements? Basic English (which, contra the Wick, is "Business, Arts, Science, Industry, Commerce English") is the failed pipedream of a single person (and I'm speaking here as someone with 40+ years and undergraduate and graduate degrees in linguistics). It's an attempt to round off the corners of a natural language in order to make it easier for those unfortunate enough to be born elsewhere than in the United States of America to be governed by those more graced by God. In what way does that constitute a pedigree? And it's interesting that you chose, of all languages, Old Church Slavonic as your example. OCS was based on the South Slavic languages of the 10th Century (CE) Balkans, with vocabulary borrowed as needed >from Koine ("New Testament") and Byzantine Greek to fill in the needed concepts for expressing (Orthodox) Christian theology in languages which did not share that world view. The Christian scriptures were translated into this refined and enhanced language for the purpose of converting the heathen Slavs from their old ways of belief. It worked. I'd say that that's a pretty damn good pedigree as these things go. Damn, this soapbox didn't look so tall when I climbed up here. Rich Alderson not speaking for anyone but himself, and so including no .sig that might lead some reader to think otherwise.

14 years, 5 months

4
4
0 0

FREE: Apollo Workstation 8-inch floppy disks

by tosteve＠yahoo.com

I don't know what these are specifically, but they are related to Apollo Workstation systems and AEGIS OS. Free for the asking. See pics here: http://oldcomputers.net/temp/apollo-disks-1.jpg http://oldcomputers.net/temp/apollo-disks-2.jpg http://oldcomputers.net/temp/apollo-disks-3.jpg http://oldcomputers.net/temp/apollo-disks-4.jpg http://oldcomputers.net/temp/apollo-disks-5.jpg http://oldcomputers.net/temp/apollo-disks-6.jpg Located in Orange County, southern California.

14 years, 5 months

4
3
0 0

Data Dynamics Tele Printer with ASR ZIP 30 Tape Reader, ebay UK

by mark＠wickensonline.co.uk

Not mine, just letting anyone know who is interested: Item number: 120841259593

14 years, 5 months

1
0
0 0

Cromemco FDC

by asc135＠gmail.com

Josh Dersch <derschjo at mail.msu.edu> wrote: > I have both a 16FDC and a 64FDC (for the moment) and right now I have it wired to a single > 5.25" drive (w/proper termination). I've tried three different drives -- a Tandon TM-100, an > unmodified 1.2M 5.25" drive, and one that's modded to spin at 300rpm. Same exact behavior on all three. Sounds like you have the basics covered. Are you running your Z-80 CPU board at 4MHz? Though I'd find it unlikely that *both* controllers would be seriously out of adjustment, I'd also check that the data separator oscillator is at the right frequency. Instructions are in the FDC user manuals for checking and adjusting that.

14 years, 5 months

3
2
0 0

Cromemco FDC

by dm561＠torfree.net

Date: Tue, 10 Jan 2012 15:00:21 -0800 (PST) From: Fred Cisin <cisin at xenosoft.com> Subject: Re: Cromemco FDC <snip> > Although most 1.2M drives can be configured for 80 track DOUBLE (NOT > "HIGH"!) density, it adds additional unnecessary variables. 1.2M is the > WRONG drive for that FDC port. It might be feasible to cable the 1.2 (or a > 1.4M!) drive to the 8" port, but don't even try until you get the "normal" > stuff working. ------ I hate to argue with you of all people, Fred, but what is your reasoning? Why "DOUBLE (NOT "HIGH")" and why is 1.2M the "WRONG" drive type? IMHO it's the opposite: HIGH (NOT "DOUBLE") and 1.2M HD is the BEST choice with a 16 or 64FDC. >From the controller's point of view a 1.2MB HD drive/disk is indistinguishable from an 8" DD drive/disk, and a number of us are indeed happily using 'normal' 360RPM 5.25" 1.2MB HD drives & diskettes and even 3.5" HD drives (set to rotate at 360RPM); the only mod needed is to switch the pin 34 jumper from the PC standard /Disk Change to /Ready. If by 80track/double density you actually mean 'quad' density, that's not really supported although if the drive also rotated at 300RPM instead of 360 then I suppose you could use 1/2 of it as a 360K DD disk. If you want to go to the trouble of making a 34<>50 pin adapter then you're good to go; on the other hand, the nice thing about the FDCs is that they have both 34 pin and 50 pin headers, so as long as you connect the /ready signal to pin 34 of the 34-pin header you can put all 4 drives on the same 34-pin cable in any mix of 5.25DD, 5.25HD and 3.5HD . As I've mentioned, for whatever reason (RPM, transfer rate, short inter-sector gaps?) most people have far more trouble creating Cromemco-readable 5.25"DD disks from an image on a PC than 5.25"HD (as 8") versions (not to mention 'real' 8" drives); that's certainly been my experience. And of course you do get more than three times the capacity. mike

14 years, 5 months

2
1
0 0

osborne 1

by tdk.knight＠gmail.com

found a mint looking osborne 1 today local computer recyler they had not even looked at it yet so i managed to get it for decent price got it home opened it up found some cpm disks nice little bonus and a mint looking interior http://img268.imageshack.us/img268/4927/osborn.jpg i tried firing it up and it powers up for fraction of a second when it trys to do its power on beep and dies. http://youtu.be/WXzI-FIr50w << see here what its doing (my ipod tuch sure is usefull) i'm guesing its the power supply but want to make sure befor i tare it apart. i've got another one that does weird things that also needs servicing but one of the face plate screws is striped so unable to get it open to look..

14 years, 5 months

7
16
0 0

Cromemco FDC

by derschjo＠mail.msu.edu

On 1/9/2012 11:57 AM, Bill Sudbrink wrote: > Bill Sudbrink wrote: > > By the way, based on your description of the symptoms, I still suspect > the 1793 is going bad. > Do you think it's likely that two cards (the 16 and the 64FDC) I have would have 1793s that are failing in exactly the same way? (Is this a common failure mode for these?) Thanks, Josh

14 years, 5 months

3
2
0 0

ID: Odd cable?

by cisin＠xenosoft.com

I just tripped over an unusual cable: It has a trapezoidal thin black box labeled "TRS0-80", but no part number, one side has a few inches of cable with a 40 pin card edge connector, the other side has a few feet of cable with a 50 pin edge connector. 40 pin was probably model 1 expansion bus (I hafn'y messed with model 2/12/16). But what did Radio Shack use on model 1 with 50 pin? -- Grumpy Ol' Fred cisin at xenosoft.com

14 years, 5 months

5
8
0 0

Gartner and friends (was: Windows piss-and-moan-o-rama)

by wdonzelli＠gmail.com

Hmm...questioning statistics with conspiracy...if that does not raise the big red kook flag, I do not know what would. ANYWAY... Market reports and surveys from years past are actually pretty interesting to read. Gartner is probably the best known of the bunch. Is anyone actively saving these reports? I assume CHM is. -- Will

14 years, 5 months

2
1
0 0

2026

2025

2024

2023

2022

2021

2020

2019

2018

2017

2016

2015

2014

2013

2012

2011

2010

2009

2008

2007

2006

2005

2004

2003

2002

2001

2000

1999

1998

1997

test-drb