test-drb

test-drb@ccmp.vtda.org

101090 discussions

by feldman.r＠comcast.net

I had a similar problem when I put together my first PC-XT clone. It had an open-frame Panasonic 9" monitor on top of the main box, which was made of 1/4" plywood (cherry stained). Putting a sheet of aluminum under the plywood top solved the problem. Bob >Message: 20 >Date: Thu, 05 Apr 2007 00:20:47 -0700 >From: "Chuck Guzis" <cclist at sydex.com> >Subject: Re: SOLVED: RL02 faults when RX02 is on >To: "General Discussion: On-Topic and Off-Topic Posts" ><cctalk at classiccmp.org> >Message-ID: <461440DF.25843.2CADF4F8 at cclist.sydex.com> >Content-Type: text/plain; charset=US-ASCII <snip> >I wonder if it's more EMI than RFI, because it reminds me of a nasty >problem we had when developing the Durango F85. >If you look at the machine, there's a 9-inch CRT placed above the >dual floppy drive. <snip> >The diskette drives refused to work on the production model. <snip> >The engineers were baffled--until someone took the monitor off of the >top of the diskette drive area to attach a scope probe--and the >problem went away. It turns out that the FBT was kicking up noise >something fierce in the read channels of the diskette drives. An >shield made of sheet aluminum didn't get rid of the problem, but one >made of steel worked just fine. <snip> >Cheers, >Chuck

19 years, 2 months

Apple II gathering in July - registration open for KansasFest

by awmolloy＠landsnail.com

Hope this is okay to post to the list. If you like Apple II computers, please join us for KansasFest this July! KANSASFEST 2007 REGISTRATION NOW OPEN KANSAS CITY, MO -- March 30, 2007: KansasFest -- the annual Apple II expo of sessions, contests, great stories, tips and tricks, fun and games, and things that "just can't be done on an Apple II" -- is now open for registration. KFest 2007 will be held at Rockhurst University in Kansas City, Missouri, July 17 - 22. Five nights, twelve meals, and countless sessions, contests, great stories, tips and tricks, fun and games, and things that "just can't be done on an Apple II" costs only $340 for a double room or $410 for a single. To register, download and complete the PDF form at http://www.KFest.org/ and follow its instructions to return it via mail, email, or fax. Wednesday's lunch (the annual Kookout) is now included in the price of the event. Also, volunteers who present sessions will now receive an on-site rebate: $15 for presenting a half-hour session, and $25 for a full hour. In addition to official shirts, sold as always at the event, there's also a KansasFest online store, where you can buy additional shirts, hats, mugs, and more. You can find it at http://www.cafepress.com/ kansasfest/ David Szetela, founding editor of Nibble Magazine and a former manager at Apple Computer, will be KansasFest 2007's keynote speaker. Szetela is now the founder, president, and CEO of Clix Marketing, an Internet marketing agency. An experienced speaker, Mr. Szetela promises a fascinating inside perspective on Apple and Nibble for attendees of KansasFest. "It's amazing and gratifying to me that the flame of passion for the Apple II we shared nearly 30 years ago still burns brightly," says Mr. Szetela. "I'm looking forward to attending KansasFest 2007 and re- connecting with old friends, reminiscing about Apple II milestones, and maybe sharing some little-known insider anecdotes." Come join the 30th anniversary celebration of the Apple II at KansasFest, the world's only annual conference dedicated to the first personal computer.

19 years, 2 months

AS/400 available for free [UK only] (was: Re: OS/400 V3R2 License Keys for hobbyist use)

by classiccmp＠memory-alpha.org.uk

> AS/400's are regularly available here in the Bay Area >(California). Prices for smaller systems range from $100 >to $250.... >....I've seen many with disk drives (very important for >AS/400's as they use a AS/400 specific drives).... If anyone within striking distance of Birmingham (UK) wants an AS/400 with those all important hard drives, I've got one which you can have for the cost of coming over and taking it away (strictly pick-up only, it's far too heavy to post). I believe it's a model 9404, with an expansion cabinet - each cabinet is similar in size to a DEC BA123 cabinet, IE not that big.... And that's all I know about it, I've never even plugged it in! Contact me off list if interested. Thanks. TTFN - Pete.

19 years, 2 months

homebrewed 32-bit cpu?

by Billy.Pettit＠wdc.com

Brent Hilpert wrote: Just rumour to me, but circa 1980 when I was doing some software development with the spanky new 68000, I was told that the 68000 had been prototyped as (literally) a large wall of SSI/MSI logic. Billy responds: That was pretty much the modus operandi on early MSI/LSI chips. All of the early ASIC's I worked with were bread boarded from SSI or even single gate ICs. The vendors would provide design kits with lots of these little chips. Most of them were 4 or 8 pins; a few were 14 or 16 pins. You can still buy them today to patch bugs on LSI until you can roll the metal. First ones were TTL, then they moved to CMOS. I even remember one ASIC that we used ECL gates on. This was in the early 80's. Gradually, the design software caught up and you could simulate your design on a computer. It's hard to remember that in the days before PCs, many of tools we take for granted, didn't exist. For example, when CDC was designing the Star series and the ETA machines, the early design automation consisted of huge programs to lay out the logic. The designer input the logic equations on decks of cards. I remember seeing some of these early programs taking 20-40 hours to run, with card decks of thousands of cards. I think I have a few of these early proto boards left. They would make a great display on the progress in the industry. We used a 12" by 24" size and interconnected them with ribbon cable. I never saw a wall mounted unit. But we had many that covered a standard workbench top and they later fit into a 24 pin package. Billy

19 years, 2 months

GRiD 1537e in the UK

by alves＠spawar.navy.mil

Doug Yowza Doug, In searching information regarding the GRiD 1537E, I located your 10 April 1998 Internet "message" wherein you stated you ".can give specs and pin-outs to anybody that would like to get it." Please e-mail that data for 1537E to me at your earliest convenience. Thank you very much. Allan Alves ORI Services Corp. Tel: (619) 524-3786 e-mail: alves at spawar.navy.mil FAX: (619) 524-2871

19 years, 2 months

homebrewed 32-bit cpu?

by wbblair3＠yahoo.com

> > I believe that was true of the 6809. Somewhere there was published > > an interview (BYTE, probably) with a member of the design team where > > he mentions this. > > Well, that article is/was on-line. I saw it one month ago. http://tlindner.macmess.org/wp-content/uploads/2006/09/byte_6809_articles.p… I remember reading the original article in Byte. I learned assembler on the 6800 via the _excellent_ Heathkit ET-3400 course and trainer and loved the 6800's simple, clear architecture and instruction set. The '09 was the ultimate evolution of a great CPU. William ____________________________________________________________________________________ Now that's room service! Choose from over 150,000 hotels in 45,000 destinations on Yahoo! Travel to find your fit. http://farechase.yahoo.com/promo-generic-14795097

19 years, 2 months

PDP-6 questions

by tshoppa＠wmata.com

Seth asks: > 3) Are the stories about the Boston Computer Museum receiving a > complete PDP-6 and then chopping it up to sell as gifts truth or > urban legend? I don't know about the BCM, but I have a couple of boards from decomissioned PDP-6's. They were not disassembled out of malice but out of lack of facility to store them. > 4) Does any PDP-6 software still exist, especially PDP-6 ITS ? (I > haven't found any on Bitsavers, so I'm guessing the answer is "no") In between scraps found on the DECUS sources and some files I've cobbled together over the years from friends in the southern hemisphere, I think I have two mostly complete sets of sources for the PDP-6 monitor. I discussed this a bit on alt.sys.pdp10 last year. Get me worked up and I might actually get them to build :-). Right now they're at http://pdp-6.trailing-edge.com/ Note that most of the early DECUS LIB-10 entries are actually PDP-6 software (with occasional notes on what you have to patch/modify to make it work on a -10). I highly recommend that you browse them. Last year on alt.sys.pdp10 I also initiated some discussions about the MACRO differences necessary to assemble the earliest source files (where the syntax was slightly different). I have mentioned to Al that I am very interested in the oldest 36-bit Macro source files that he has from the LCG archives. I suspect there's at least some interesting stuff there but it's hard to sort out. Tim.

19 years, 2 months

PDP-6 questions

by jfoust＠threedee.com

At 09:28 AM 4/3/2007, William Donzelli wrote: >>> 3) Are the stories about the Boston Computer Museum receiving a >>> complete PDP-6 and then chopping it up to sell as gifts truth or >>> urban legend? > >Until someone comes up with hard evidence that BCM had one then >scrapped it - something like photographic evidence of the PDP-6 in the >collection, inclusion in an official inventory (and then not), or >otherwise - I discount it as just a story. Nearly everyone I have >talked to about it is very insistent about BCM scrapping a PDP-6, but >the sources of their information is always someone else with the same >unsupported and often inconsistent facts. Basically, the whole story >has too many of the red flags that make up a good urban legend. OK, I bought one of those boards on eBay a few years ago. I sent an email to Gordon Bell to establish provenance. See below. I sent him a picture of the board. - John Subject: RE: PDP-6 board from The Computer Museum, Boston Date: Fri, 10 Feb 2006 14:06:59 -0800 Message-ID: <5AE8A38330D3664FAEB010BC1D00283901499120 at RED-MSG-20.redmond.corp.microsoft.com> X-MS-Has-Attach: yes X-MS-TNEF-Correlator: From: "Gordon Bell" <gbell at microsoft.com> To: "John Foust" <jfoust at threedee.com> Cc: "John Toole" <toole at computerhistory.org>, "Len Shustek" <len at shustek.com>, "Kirsten Tashev" <tashev at computerhistory.org>, "Dag Spicer" <spicer at computerhistory.org> X-OriginalArrivalTime: 10 Feb 2006 22:07:16.0050 (UTC) FILETIME=[5A382320:01C62E8E] Status: Yes. I signed the PDP-6, 4 register, bit slice board in the photo. It came from the Computer Museum in Boston where it was sold in their store Let me be clear The Computer Museum (TCM) was NEVER called the Boston Computer Museum... Boston was a temporary home when computing passed through New England, but the city itself gave nothing to it. I don't believe the origin can be traced to any machine, since there were no serial numbers, and the modification level would also be too hard to correlate with any time or place. The Museum got a large number of spares and scraps of all kinds from Digital and it was undoubtedly one of those. To my knowledge, the museum has never engaged in gutting machines for components, although I would happily agree that this is a good idea when we have duplicates and crippled or partial artifacts. As a former collector, founder, and board member of the Digital Computer Museum > The Computer Museum >> current Computer History Museum (a name I deplore and that exists only because of the way the Museum left Boston) I have always been a strong advocate of getting as many artifacts into as many hands as possible, and this includes selling museum artifacts when appropriate. In essence a whole industry of museums and collectors is essential. Incidentally, at one point there was a flame in pre-blog days about the tragedy of the museum selling boards, etc. in which I never engaged. As someone who has contributed about $10 million as well as time, etc. to this endeavor, I can only shake my head... and wonder where those folks were when the museum needed their financial and time support. The lovely ending is that the museum finally has a wonderful home and caring environment with lots of people that support it with love, time, and money. Hope you have or intend to visit it in Mountain View. I trust I have your own financial support and trust you are a member there, too. See <http://www.computerhistory.org/>www.computerhistory.org g -----Original Message----- From: John Foust [mailto:jfoust at threedee.com] Sent: Saturday, February 11, 2006 1:31 AM To: Gordon Bell Subject: PDP-6 board from BCM? Can I confirm the provenance of an item I purchased? It's an S6205D board, signed by "Gordon Bell". Below is a Usenet post that may describe the event at the Boston Computer Museum where it was first sold. Did you sign this board, and do you remember the circumstances? - John Article 1624 of alt.sys.pdp10: Path: shellx.best.com!news1.best.com!sgigate.sgi.com!enews.sgi.com!decwrl!pa.dec.com!nntpd.lkg.dec.com!lead.zk3.dec.com!zk2nws.zko.dec.com!denton.zko.dec.com!amartin From: amartin at denton.zko.dec.com (Alan H. Martin) Newsgroups: alt.sys.pdp10 Subject: Re: Working for PDP-10 En Date: 21 Feb 1996 13:12:21 GMT Organization: DEC Lines: 27 Message-ID: <4gf5nl$kun at zk2nws.zko.dec.com> References: <DMJ1IM.MuJ at network.com> <1996Feb14.164932.1 at eisner.decus.org> <aldersonDMsnx7.5vM at netcom.com> NNTP-Posting-Host: denton.zko.dec.com In article <aldersonDMsnx7.5vM at netcom.com> alderson at netcom.com writes: >In article <1996Feb14.164932.1 at eisner.decus.org> stevens_j at eisner.decus.org >(Jack H. Stevens) writes: ... >>How about trying The Computer Museum, in Boston? (also at http://www.tcm.org) > >Bad idea. The Computer Museum has buried any interesting (read "36-bit") >hardware. They were given, for example, the Stanford Artificial Intelligence >Laboratory PDP-6 in 1984, after it was shown at the Fall DECUS Symposia (for >the 20th Anniversary of 36-Bit Computing). > >It has never been made available for public view; as far as anyone can tell, >it has disappeared from the face of the earth. I'm hazy on dates, but if the 6 in question was donated before the museum's move from MR2 to Boston, you ain't likely to see it in one piece ever again. They had a garage sale of unwanted items in the MR1 cafeteria one Saturday before the move, and were selling a PDP-6 module-by-module. An S6205K "Arithmetic Registers" module (1-bit slice of AR/MQ/MB/<light buffer>) went for $7, autographed by Gordon Bell. I asked him whether read-in mode was implemented as a diode array encoding instructions. He said no, and kindly recommended the 6205 as a particularly central module to have, instead. /AHM -- Alan Howard Martin AMartin at TLE.ENet.DEC.Com <file://F:\Eudora\attach\gbellboard.jpg> gbellboard.jpg <file://F:\Eudora\attach\gbellboard.jpg> gbellboard.jpg

19 years, 2 months

Check out this gallery of classic comp pictures

by RMeenaks＠olf.com

There are some really neat stuff here dating back to 50's to the late 80's. http://www.chilton-computing.org.uk/gallery/ <http://www.chilton-computing.org.uk/gallery/> Cheers, Ram

19 years, 2 months

homebrewed 32-bit cpu?

by brian＠quarterbyte.com

> On one of the pages linked from the homebrewcpu.org page is a > project that uses surface-mount transistors on what amount to tiny > flipchips. If you're insane enough to try a discrete 8080, go with > that approach. Which link is it? This is homebrew SLT?

19 years, 2 months

PDP-6 questions

by aek＠bitsavers.org

1) Are there any complete PDP-6s anywhere at all? There are none known to exist 2) Does the Computer History Museum in Mountain View have any PDP-6 artifacts? CHM has the Fast Memory chassis from the Stanford PDP-6 3) Are the stories about the Boston Computer Museum receiving a complete PDP-6 and then chopping it up to sell as gifts truth or urban legend? Ken Sumerall and I worked on putting this rumor to bed about six months ago. There are no records of BCM ever receiving the PDP-6 >from Stanford. As best as we were able to determine, the Stanford PDP-6 that was shown at DECUS for the 10th anniversary of the 36 bit product line was sent somewhere within DEC, it was NEVER sent to BCM. When Compaq donated their museum holdings to the Computer Museum History Center the Fast Memory chassis was sent. There is no evidence of any other part of the system (or a rumored additional PDP-1) surviving. It is unknown what happened to the rest of the PDP-6. We do know that we don't have it.

19 years, 2 months

Fwd: [comp.sys.dec] TK50 tapes

by legalize＠xmission.com

This message has been forwarded from Usenet. To reply to the original author, use the email address from the forwarded message. Date: 3 Apr 2007 10:38:37 -0700 Groups: comp.sys.dec From: "Sam Hoblit" <shoblit at gmail.com> Org: http://groups.google.com Subject: TK50 tapes Id: <1175621917.544692.78610 at n76g2000hsh.googlegroups.com> ======== In the process of getting rid of some old equipment I was able to save back a slew of TK50 tapes (~120). Before throwing them out, I thought I'd offer them here in case anyone is interested. Local pickup on Long Island. I could also bring them into NYC, if necessary. Let me know in the next couple weeks if you would like them, otherwise into the dumpster they go.

19 years, 2 months

PDP-6 questions

by tshoppa＠wmata.com

Will wrote: > Tim wrote: >> I don't know about the BCM, but I have a couple of boards from >> decomissioned PDP-6's. They were not disassembled out of malice >> but out of lack of facility to store them. > When was this? I got the boards circa 1995. The guy who gave them to me related that the PDP-6 had been decommisioned circa early 80's (replaced with a FOONLY - that ought to narrow it down for you!), and he was keeping KS10's and Massbus disk and tapes drive running in his house through most of the 90's :-). I'm not sure why I'm making any attempt at obfuscating this guy's identity, I gave away so many clues above that it's obvious who it is by now! Maybe my obfuscation is a lame attempt at stopping the "you tore up a PDP-6" blame game. Tim.

19 years, 2 months

homebrewed 32-bit cpu?

by dgriffi＠cs.csubak.edu

Has anyone here pondered a 32-bit CPU in the spirit of the Magic-1? How much harder would that be? -- 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?

19 years, 2 months

Scitex NuBus card ID?

by bear＠typewritten.org

I just picked up a Scitex NuBus card at surplus a couple days ago. Anybody have any guesses what it is? The only connector on the card is the DIN96 NuBus connector. There are two sets of empty pads for 96-pin connectors (4 rows of 24 pads). Major chips include a Cypress CY7C342 EPLD, 40 MHz Motorola XC96002 DSP, and a custom LSI QFP marked "COLOR-SCITEX". There are a fair number of RAM devices, too, including MT5C1008 20ns 128Kx8 SRAM in one group of 8 and one group of 5, MT42C8256 70ns 256Kx8 DRAM in one group of 8, and four CY7C199 35ns 32Kx8 SRAM chips. Silkscreen marks include SCITEX, "S.C.N. II", "ZEN", "PS QUAD", and "QUAD CS". Stickers include "NURIT" and "VS500048/ 5". Guesses? The only Scitex card for Macintosh I can even verify exists is the ResoLUT, which accelerates color space translations. Not sure though if that's what I have. Any ideas? ok bear

19 years, 2 months

ARTIC Hardware

by marvin＠rain.org

I met a woman today who has done considerable software work with ARTIC. The website that has a bunch of the hardware for sale is at http://www.quadron.com/. I've already put her in touch with Al regarding the manuals, etc.

19 years, 2 months

Wyse 60 and 110 Terminals on Craigslist

by marvin＠rain.org

A listing for some Wyse terminals is on Craigslist at http://santabarbara.craigslist.org/sys/304913513.html. I don't know if she will ship them or not but the price sure seems right.

19 years, 2 months

PDP-6 questions

by sethm＠loomcom.com

I'm hoping to start a thread that might answer some questions about the PDP-6 that I've so far been unable to get resolved through Google or other means. This is all mostly spurred on by finally getting around to reading Steven Levy's "Hackers" after 23 years, and reading about the role the PDP-6 played in the early Hacker culture around MIT's Tech Square and Stanford's SAIL. It seems like the PDP-6 is one of the least well preserved of DEC's systems, maybe even the "Holy Grail" (at least to some folks). Without further ado, the questions: 1) Are there any complete PDP-6s anywhere at all? 2) Does the Computer History Museum in Mountain View have any PDP-6 artifacts? 3) Are the stories about the Boston Computer Museum receiving a complete PDP-6 and then chopping it up to sell as gifts truth or urban legend? 4) Does any PDP-6 software still exist, especially PDP-6 ITS ? (I haven't found any on Bitsavers, so I'm guessing the answer is "no") 5) Does anyone have any PDP-6 stories they'd like to share with the group? I'm hoping #5 spurs on some good discussion. -Seth

19 years, 2 months

homebrewed 32-bit cpu?

by ajp166＠bellatlantic.net

> >Subject: homebrewed 32-bit cpu? > From: David Griffith <dgriffi at cs.csubak.edu> > Date: Mon, 02 Apr 2007 14:50:17 -0700 (PDT) > To: cctalk at classiccmp.org > > >Has anyone here pondered a 32-bit CPU in the spirit of the Magic-1? How >much harder would that be? Yes, but I'll likely not build it. Harder only by a little, maybe 2x the parts. I find that simply bigger (more bits) often is nice thinking but I always do the "whatif" in instruction set and the like. When it comes to building from raw ttl I find myself specualting on longer words with multiple address schemes or something simple like PDP8 but say 16bits. No matter what it would be s software orphan. Allison >-- >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?

19 years, 2 months

Cost Of Technology

by Billy.Pettit＠wdc.com

Recently, I tried to make a point about the cost of rolling products being a detriment to product change. I was more optimistic than I thought. Here's something from today's EETimes on the costs of innovation. I was way low. Even disk drive vendors figure $30-50 million to bring out a new drive. Change is done to survive, not to satisfy some marketing whim. Billy Quote from: http://www.eetimes.com/news/latest/showArticle.jhtml?articleID=198701495 In the new IC world order, fewer integrated device manufacturers (IDMs) can afford to build fabs, while only an elite group may be able to develop leading-edge IC designs over time. At the 45-nm node, a new 300-mm fab costs about $3 billion, process technology R&D runs $2.4 billion and a "mask set" is up to $9 million, Synopsys said. Test costs, meanwhile, continue to be flat. IC design costs range between $20 million and $50 million, the EDA company estimated. And there's a new problem on the block: process variation. Identified as one of the new "pressure points" at the 45-nm node, variation is becoming one of the root causes of chip failures. Much of the data is uncertain for the 32-nm node and beyond, but some say that by then, a new 300-mm fab could go for $10 billion, as process R&D costs reach $3 billion and design costs $75 million.

19 years, 2 months

IMI disk drive on Cromemco

by dm561＠torfree.net

------------Original Message: Date: Sun, 01 Apr 2007 13:05:51 -0700 From: "Chuck Guzis" <cclist at sydex.com> Subject: Re: IMI disk drive on Cromemco I don't know if this applies to the 7700, but I do recall that the 5000 was somewhat finicky about being level. IIRC, if one inclines the drive so that the positioner is working against gravity, you'll get seek failures. Cheers, Chuck -----------Reply: Good point, although that applies to most of the old drives (especially those with a linear positioner); installation guides usually specifically disallowed any orientation like that. And of course any old drive with potentially slightly worn parts should always be used in the same orientation and given lots of warm-up time before writing to it. While we're taking about the 5000, the 5MB 5007 drive's index sensor often caused problems. It used a poorly mounted reflective optical sensor which could easily move; also, dust would accumulate in the index disk holes and on the reflective surface. mike

19 years, 2 months

Fwd: [comp.os.vms] Digital Storageworks equipment for sale...

by legalize＠xmission.com

This message has been forwarded from Usenet. To reply to the original author, use the email address from the forwarded message. Date: Sun, 1 Apr 2007 19:28:34 -0500 Groups: comp.os.vms,comp.sys.dec From: "Schroeder, AJ" <ajschroeder at no-spamhotmail.com> Org: Road Runner High Speed Online http://www.rr.com Subject: Digital Storageworks equipment for sale... Id: <46104e02$0$5781$4c368faf at roadrunner.com> ======== Hello group, I have quite a bit of Digital Storageworks equipment that I have collected over the past few years. I am looking to sell some of it off. I figured that I would give the newsgroup members first dibs on it, then I will go to eBay. I have multiple BA35x towers (tan and blue) with the fans, personality modules, and power supply units, some of them even have the complete "skins" with the doors and stands. If anyone wants them, I have a bunch of 4 GB tan and 9GB blue SBBs available. Also I have SCSI cables of varying lengths and connector types. All of this is coming from my personal collection of pieces and parts and all parts are known to be in working order and in good condition. I can sell some individual items off as parts, but I would like to sell a couple towers as whole packages. Shipping can be negotitated if outside the US, although I am told that there are massive amounts of fees if shipping is outside the US so it may not be worth it. I am in the Milwaukee, WI area so if you are near me local pickup can be arranged. Please email ajschroeder at no-spamhotmail.com (remove no-spam first) for a complete list of parts. Thanks, AJ Schroeder

19 years, 2 months

free to good home: ibm 8513 (UK)

by robert＠irrelevant.com

Does anybody want a small (13") IBM colour monitor Model 8513002 ? Worked fine when last used, some years ago.. little grubby now from being stored in the attic though. I'm in Manchester, UK. I'd rather not try and post it, so if anybody is in the area or passing and wants it, please pipe up :-) Rob

19 years, 2 months

rs232 capture?

by cleng＠classicad.cz

Dear Brad, I remembered my old program ASDAT. What is ASDAT? It is a DOS tool for capturing and examining captures for capturing and examining data communication on RS232 line. It works on any DOS computer which has 2 serial ports. Using special probe (two 25-pin CANON male/female connectors + two cables connecting probe to serial ports) it captures data + modem signals including exact time information (resolution is 0.05ms). The speed of communication can be up to 19200Bd. Data are stored in the buffer (size is 8kB characters). Data can be saved to disk file after capturing. Data are showed during capture and can be examined after capture ends. There is also possibility of triggering - if you are looking for some special sequence of data on communication line. There is also way to export data from captured file (both directions together or separately). If you are interested in ASDAT I can send you a demo (i.e. ASDAT without ability to capture + some captured files) to try the user interface. I can send you also full version free of charge if you are able to make the probe yourself (BTW 15 years ago ASDAT was being sold for about 5000 CZK - about 250 USD). There was also some other development in ASDAT (new version was written for 32-bit DOS environment): - bigger (nearly unlimited) data buffer - baud rate up to 115200Bd - continuous data capturing to file etc. As far as I can remember the new version was finished but never distributed. ASDAT was never moved to Windows. Regards Cestmir Lengal ClassiCAD, Zlin Czech Republic cleng at classicad.cz

19 years, 2 months

HP 2116 on ebay

by jwest＠classiccmp.org

This is a classic HP currently on Ebay, a decent 2116C model. Item is 290099957210 What is so special about it, besides the obvious? Seller updated the auction listing with a card list. It appears to have two of the (rare) 12920/21 mux sets (32 ports), something that is required for all versions of TSB. I'd be willing to trade a nice mux panel for them in exchange for one of the two mux sets ;) Jay

19 years, 2 months

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test-drb