test-drb

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101090 discussions

by john＠yoyodyne-propulsion.net

... another classic service dies... first Gopher (Archie, etc) now Ceefax (teletext)! http://en.wikipedia.org/wiki/Ceefax -- Yoyodyne Propulsion Systems: ?"The Future Begins Tomorrow" Visit us at: http://www.yoyodyne-propulsion.net -------- "Under the Obama plan, NASA will spend $100 billion on human spaceflight over the next 10 years in order to accomplish nothing" -Robert Zubrin

14 years

Iomega ZIP programming manual ?

by jeffj＠panix.com

From: Jos Dreesen <jdr_use at bluewin.ch> Subject: Iomega ZIP programming manual ? > Probably borderline for CCtalk, > but does anyone have a proper programming manual for the > Iomega ZIP drive ( 100MB atapi version ) ? > I need to know exactly which ATAPI commands have been implemented. To paraphrase a famous Jedi knight "use the source, Luke!" The Linux driver source code is probably the closest thing to documentation This mentions what parts to look for: http://www.faqs.org/docs/Linux-mini/ZIP-Drive.html (sorry I don't have a better URL. I've rarely needed to find Linux source code) I never allowed ZIP drives in my house but I tried using 1 gig JAZ drives. I ruined them by trying the SCSI low-level format command on them. The cartridge was unuseable after that. I suspect ZIP drives & cartridges are similar: DO NOT LOW LEVEL FORMAT! -- jeffj

14 years

Raised flooring available

by djg＠pdp8online.com

Its in NE Philadelphia. You must come deinstall and haul away. Time is very short. If you are interested and can come and remove very soon email me and I will give you the contact information. I have no more knowledge, just forwarding the info. It's unclear if they will want some $ for it.

14 years

book on VMS architecture?

by tshoppa＠wmata.com

[VMS Internals Books e.g. Kenah Goldenberg & Bate] > I haven't seen that specific book, but in general such books usually > tell what the software does, but not the engineering trade-offs that led > to it being done that way as opposed to some other way, which seems to > be what was requested. At least a little of that does shine through. "The Hitchiker's Guide to VMS" has many tidbits up through the V5 days. Bruce Ellis, 1990. And even better it's enjoyable. There were various detailed things in DTJ, although those typically represent more of the corporate mongolian-horde design-by-committee approach to systems programming, rather than anything you'd want to actually emulate. Tim.

14 years

Iomega ZIP programming manual ?

by jdr_use＠bluewin.ch

Probably borderline for CCtalk, but does anyone have a proper programming manual for the Iomega ZIP drive ( 100MB atapi version ) ? I need to know exactly which ATAPI commands have been implemented. Jos Dreesen

14 years

book on VMS architecture?

by legalize＠xmission.com

Note: I'm not asking about VAX hardware architecture, but about the software architecture of the VMS operating system. What were it's design goals? What were the design trade-offs made that resulted in the specific choices for VMS? Process scheduling? I/O? etc. Is there a good book on this subject? -- "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

C. Gordon Bell architecture books

by legalize＠xmission.com

There's almost nil about these books on amazon, so I'd like to hear some thoughts on these. In particular, I'd like to know what's different between the last two. "Computer Engineering: A DEC View of Hardware Systems Design" <http://www.amazon.com/gp/product/0932376002/ref=ox_sc_act_title_1?ie=UTF8&m…> "Computer Structures: Principles and Examples" <http://www.amazon.com/gp/product/0070573026/ref=ox_sc_act_title_2?ie=UTF8&m…> "Computer Structures: Readings and Examples" <http://www.amazon.com/gp/product/0070043574/ref=ox_sc_act_title_3?ie=UTF8&m…> -- "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

TRS-80 HD emulator...

by geneb＠deltasoft.com

Some here may find this useful: http://www.vecoven.com/trs80/trs80.html He seems to be emulating a WD1010 drive controller. 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_! Buying desktop hardware and installing a server OS doesn't make a server-class system any more than sitting in a puddle makes you a duck. [Cipher in a.s.r]

14 years

Commodore PET 2001 Video Problem

by dm561＠torfree.net

----- Original Message: Date: Mon, 16 Apr 2012 09:55:12 -0400 From: Ethan Dicks <ethan.dicks at gmail.com> > Try powering up with the video RAMs removed (they are in the back and look > like they have dots on them). With no RAM, the PET should power up to a > blank screen Tsk, tsk, Ethan, you know better than that ;-) A PET with a working video section and video RAM removed will show the classic checkerboard pattern or under certain circumstances a pattern of small black squares. No doubt there's considerable PET knowledge on this list, but as Terry suggested previously the VCF forum or one of the PET/CBM-specific lists might be a better place to find help with a sick PET... m

14 years

Reference Disc for a Research Machines PC-386

by mark＠msanet.co.uk

Hi You wouldn't have a copy of the reference disks for your rm pc-386 as I have one and am unable to setup it up as I cant get into the bios etc Any help would be much appreciated Cheers mark

14 years

traight-8 miniaturised

by elson＠pico-systems.com

cctalk-request at classiccmp.org wrote: From: David Griffith <dgriffi at cs.csubak.edu> To: cctalk at classiccmp.org Subject: straight-8 miniaturised Who was the one with the wacky idea of building a Straight-Eight PDP8 using flipchip cards populated with surface-mount parts? I have a hankering to run some numbers about it. There's some guy in Germany who built a complete computer using discrete components, mostly resistors and bipolar transistors (no ICs), but all surface mount. It was quite small. I can't find the link now, but there are a bunch of homebrew computer projects linked to here: http://www.homebrewcpu.com/links.htm http://www.holmea.demon.co.uk/Links.htm Jon

14 years

Quantex 650 / 2200 QIC tapedrive

by lehmann＠ans-netz.de

Hi, I'm thinking of getting my Zilog System 8000 maybe one day back to life... this includes multiple tasks. - get a working harddrive - get a working tapedrive - get access to tapes containing the OS and the diagnostics Right now I'm thinking of the tapedrive part. The original drive is a DEI CMTD-3400 http://www.bitsavers.org/pdf/dei/CMTD-3400S2_4tk6400bpi_1979.pdf I have one but it is broken in multiple ways - the previous owner I got the drive from replaced it in the 80s as it was failing (no further details available) - the motor does not run smootly - it does not start on its own when powered up and the UPM is changing. I was not able to open it. - the rubber wheel went to fluid (usual problem...) I now got a so called "Quantex 2200" which is a 19" case with two Quantex 650 drives which should be able to handle the same tape format as the DEI drive. All I was able to find about this drive was: http://www.bitsavers.org/pdf/quantex/TM1001_650_Jul81.pdf Does anyone have any experience with this drive? I wonder if I could make it "connection compatible" somehow with the DEI drive. The manual itself talks about a controller board which is the only whay the drives can be bus driven - it looks like the drives in this 2200 case do not have this optional controller board. Maybe they do not have it because the big plate in top of the case is a controller board for both drives... Who knows - I did not find anything usefull about this 2200 case nor how it is supposed to be connected to what (pinouts). The rubber wheels are as well went fluid. I could also need some ideas how to get a QIC drive capable of reading and writing DC300XL QIC cartridges hooked up to a PC with BSD or Linux running as in some point in the future. I must be able to copy the system tapes (reading + writing) with a PC. Pics of this 2200 case: http://pics.pofo.de/gallery3/index.php/S8000/Quantex-2200 Greetings, Oliver

14 years

Seeking Grant Stockly

by dgriffi＠cs.csubak.edu

Do you remember Grant Stockly of altairkit.com? Whatever happened to him? The site is still up and running, but it hasn't been updated since 2007. The forums there are choked with spam. I'd love to see what he's been up to and maybe buy a kit from him. -- 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?

14 years

straight-8 miniaturised

by dgriffi＠cs.csubak.edu

Who was the one with the wacky idea of building a Straight-Eight PDP8 using flipchip cards populated with surface-mount parts? I have a hankering to run some numbers about it. -- 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?

14 years

PDP-8/L core memory surgery

by ethan.dicks＠gmail.com

On Tue, Apr 17, 2012 at 8:31 PM, Michael Thompson <michael.99.thompson at gmail.com> wrote: > The M220 tester is the one that I want to see > working. Those modules are problematic and difficult to test in a > partially working system. I would love to see (and build!) an M220 tester. That's a complex module. -ethan

14 years

Evans and Sutherland parts and Soroc 120 posted

by innfoclassics＠gmail.com

Spotted on epay Evans and Sutherland Misc in Portland Oregon. http://www.ebay.com/itm/Evans-Sutherland-ESCP-Power-Supply-030446-001-Card-… http://www.ebay.com/itm/Evans-Sutherland-ESCP-Card-Gage-Tester-030451-001-H… I don't think there is much left and these seem to be power supply and testing equipment, hopefully of interest to someone. Soroc 120 terminal - rough - Vancouver BC http://www.ebay.com/itm/140735397588 I have visited the Hackery and bought stuff from them, they seem to be reliable but I have no experience with their packing. Paxton -- Paxton Hoag Astoria, OR USA

14 years

SCSI-1 to IDE converter board

by LYNCHAJ＠YAHOO.COM

Hi Months ago there was some discussion about a SCSI-1 to IDE converter project. There appears to be some general need for older SCSI-1 based computers to replace their hard drives with more available models. Unfortunately there are no "free and open" solutions as of yet AFAIK. I've designed a PCB that converts SCSI-1 to IDE and SD. There are about 8 PCBs left. I am looking for some volunteers to help build and test the board. So far we know the basic board boots but still need more software to handle the SCSI-1 to IDE or SD conversion. http://n8vem-sbc.pbworks.com/w/browse/#view=ViewFolder&param=MINI%20SCSI%20t o%20IDE%20prototypes If you are willing to volunteer and have some experience in building, testing, debugging, and writing software this would be a good project. Please contact me by email for more information. Thanks and have a nice day! Andrew Lynch

14 years

Chinese ebay eprom erasers

by cclist＠sydex.com

On 15 Apr 2012 at 12:20, Eric Smith wrote: > Chuck Guzis wrote: > > just google for "germicidal lamp" Not horribly expensive. Add an > > inexpensive mechanical timer if you'd like and you're all set. > > But remember, the short-wave UV can harm your eyes fairly quickly. > Catching a brief glimpse of it won't hurt you, but avoid looking at it > any longer than that. Put it in an opaque container. I strongly > recommend installing a switch that turns off the lamp when the > container is opened. Hence my coffee can container. Not convenient to turn upside down and stare into. One could add a microswitch or even a mercury switch to enforce an interlock, but I never found it necessary. > If you're in a hurry, it is also possible to use a Xenon or Krypton > flash tube (provided that it is made from quartz class to not filter > out the shortwave UV) to erase the EPROMs nearly instantaneously. > Needless to say, this is even more potentially harmful to the eyes. Should be easy enough to find if one hoarded the disposable camera innards. A carbon arc will also do just fine (I remember how brightly the luminous face on a watch would glow when held to the observation port of an Ashcraft projector can. See https://www.youtube.com/watch?v=5Jqc4GiMQE0). A MIG welder would also probably generate enough short-wave UV. I wonder if enough UV would get through, say, an ordinary 75 watt mercury-vapor luminaire. --Chuck

14 years

WTB: SGI Professional IRIS CPU / Help Needed

by robert.herget＠gmail.com

Hi I was wondering if you still have your Professional Iris 4D/50G? Robert

14 years

Systems Engineering Laboratories => Gould etc. systems?

by RichA＠vulcan.com

Querying the Group Mind(TM): We have been asked to find out if any Systems Engineering Laboratories systems are still in existence. That's kind of vague, but that's the question as it was posed to us, and I said I'd ask in the usual fora. We're only looking for information on whether any of these systems are known still to be in existence, whether in use or in storage. I vaguely remember Gould SEL32 "superminis" in the late 70s/early 80s as competitors to the DEC VAX and the IBM 43xx lines, but only through ads in Computerworld and Datamation. Information on those would be appreciated. We would also like to know about earlier systems, including the 24-bit processors from the mid-60s. Thanks for any help you can provide. Rich Alderson Vintage Computing Sr. Systems Engineer Vulcan, Inc. 505 5th Avenue S, Suite 900 Seattle, WA 98104 mailto:RichA at vulcan.com mailto:RichA at LivingComputerMuseum.org (206) 342-2239 (206) 465-2916 cell http://www.LivingComputerMuseum.org/

14 years

Official Spring cleaning sale

by slandon＠centurylink.net

Heres my official List of whats for sale Apple IIGS ROM 03 with CMS SCSI II card, AE SonicBlaster, 2 External SCSI Hard Drives, 1 40mb the other 80MB- both come with extra drive mechanisms- Matching Monitor, Keyboard & Mouse $200 plus shipping Apple //e enhanced system loaded Has the 80col/RGB Card, With Color Monitor 100, Echo II Speech Synth Card, Apple II workstation card, Liron Card w/ 3.5 UniDisk Drive, SCSI Card Comes with a DuoDisk Drive, and a 3.5 UniDisk, Super Serial Card, And a Monitor // $300 Tandy 1400HD Laptop- Comes with AC Adapter and Dead Battery, Cant get unit to power up. $40 TRS-80 Color Computer with original owners manuals, joysticks, tape player, software carts. All of it for $50 dollars 4 Apple Disk II Drives $25 each- may need cleaning Apple //c System with AC Adapter and external 5.25 drive $30 + shipping Tandy SL386 w/ 486 upgrade 4MB RAM 80MB HDD $20 AST Advantage Adventure 486/33 with 66mhz overdrive 16MB RAM, 170MB HDD, SoundBlaster 16 w/ IDE and CD-ROM installed $40 Tandy 486 Desktop, SCSI Card 8MB RAM, 250mb HDD $30- Powers on but doesnt POST 8 G3 All in One Molar Macs $20 dollars each- Will not ship these monsters as they weigh 60lbs each- These will have to be recycled if they arent taken soon enough 20 Mac LC 575 systems $20 dollars each- These are also recycle bound 10 Power Mac 5500s $20 each These are also recycle bound Apple ADB Mice $5 dollars each- I have 80 of them Apple //e 80/Col RGB Card made by Taxan $20 Kaypro 2 Nice original System, original owners manuals, system disks and software works fine- Never use it $150 Kaypro IV Plus 88 $40 Commodore SX64- Great condition fully functional, Owners Manual and original disks and carry bag included $175 1 Mac 512k for parts- Powers on, missing Floppy Drive $40 ROM 00 IIGS CPU $20 Will have more as I clean out my closets and shed in the future Steve Landon Flushing MI

14 years

History of the Supercomputer & Jack Tramiel passed away

by c.murray.mccullough＠gmail.com

>From the earliest history of the computer the innovators and engineers talked about licensing, patents and who did what & when. What has changed? Should we be surprised that Jack Tramiel ?acted? the way he did and not necessarily in a bad way; that the supercomputer?s origins is in dispute! The historical origins, in some fashion, can be found in ?Turing Cathedral: The origins of the digital universe? by George Dyson. It tells us why we had the vintage computer era - this can be found in my book, ?A Historical Research Guide to the Microcomputer.? (Shameful plug here!) - and what has evolved since. Murray--

14 years

Minivac 6010

by brian＠ptubes.com

Hi -- friends of mine found an intact, in-box Minivac 6010 with manuals and wires etc in their mother's closet in Ohio. Just as a FYI for them, any info on valuation? I see virtually no trades of these in Google searches. tanks Brian

14 years

by lproven＠gmail.com

This should be easy for the assembled, I reckon. http://www.theregister.co.uk/2012/04/14/reg_picture_puzzler/ I'm not entering myself - although I'm not an employee, I write for them. -- Liam Proven ? Profile: http://lproven.livejournal.com/profile Email: lproven at cix.co.uk ? GMail/G+/Twitter/Flickr/Facebook: lproven MSN: lproven at hotmail.com ? Skype/AIM/Yahoo/LinkedIn: liamproven Tel: +44 20-8685-0498 ? Cell: +44 7939-087884

14 years

Commodore PET 2001 Video Problem

by wheagy＠gmail.com

On Sat, Apr 14, 2012 at 2:12 PM, Dave Caroline <dave.thearchivist at gmail.com> wrote: > On Sat, Apr 14, 2012 at 7:52 PM, Win Heagy <wheagy at gmail.com> wrote: >> Hi, >> >> I recently picked up a PET 2001-8. ?It has a video issue...see >> http://imgur.com/PKc97 ?(disregard the black diagonal scan lines...digital >> camera artifact). > 2 The processor cannot write to the video ram (and therefore clear it) >>>That's also a distinct possibility. >>>Which version of Static PET do you have? They came with different >>>types of ROM and RAM (the schematics for all three variations are >>>posted on zimmers.net). Main memory and video memory use the same >>>chips, 1Kx4 in pairs. You need two working chips for video memory at >>>at least 4 working chips for main memory (the first 1K is taken up >>>with zero page variables, stack, and tape buffers). 2114 SRAMs are >>>notoriously suspect, but 6550s can fail too. Is it possible to tell the version by looking at the board? I posted a pic at http://imgur.com/3aeiL >>>Before worrying about RAMs, check your Vcc... there are 4 regulators >>>and 4 legs of +5VDC. If you've lost one, obviously, it will act >>>strange. I checked the 4 regulators and they are all outputting +5VDC. The most deviation I saw was +4.94VDC. Thanks...Win

14 years

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