test-drb September 2005

test-drb@ccmp.vtda.org

212 participants
437 discussions

Fw: TRS-80 floppy drive compatibility (MISSING MESSAGE)

by infomagic＠localisp.com

In issue 54, I received two replies to the message I sent Saturday evening, but my original message was not in any of issues 53, 54, or 55. I have noticed this kind of "disconnect" before, both with my own message and with messages from others. I receive the cctech "daily digest" (often there are many each day), and I send my messages individually from my email client to the cctech at classiccmp.org address. If there is a message board or forum, I am not aware of it. Am I missing something in my communications connections? Are you folks using some other tools or websites? Was my messge deliberately deleted, or has it not arrived in the digest yet? Is this a normal behavior, or a symptom of something I'm not doing right? Thanks for any help you can provide, -John M. -----Original message----- From: infomagic infomagic at localisp.com Date: Sat, 27 Aug 2005 18:46:20 -0400 To: cctech at classiccmp.org Subject: TRS-80 floppy drive compatibility I have a Tandy CoCo that had been used with 2 floppy drives. Can I just unplug the drives and use them with a Model I, III, or IV ?? TIA, -John

19 years, 3 months

Attention AIX weenies

by spectre＠floodgap.com

Or studs, if you prefer. I'm dealing with an AIX 4.1.5 system (can't be upgraded higher than this; it's unsupported hardware). This is *nearly* on topic, the box is circa 1996-7 (an Apple Network Server 500). It has 512MB of RAM and a 200MHz 604e CPU board, and a single 18.4GB SCSI-2 drive (non-RAID). It hummed along very happily until recently when it started hanging up during backup jobs. Watching it run with vmstat, I noticed that after the free page count gets under minfree a couple times (eight seems about average), it hangs up. lsps -a just before the freeze shows barely a couple percent of the paging space being used, and the avm usage count in vmstat is hardly out of the ordinary for this system, so I don't think it's running out of paging space. Increasing it 1.5x didn't make any difference anyway. Turning down maxperm to reduce the number of file pages allocated by the AIX VMM didn't make any difference either (I presume the problem is file pages since the backup job is basically a tar over the network). Right now I'm solving the problem by setting maxfree stupidly high so that whenever the free count gets under minfree, the VMM will release a massive bolus of free RAM pages (presumably from the file cache pool) and thus keep the system as far away from hitting minfree again for as long as possible. However, this is technically disgusting and can't be a good idea for filesystem performance. Hardware checks out and RAM checks out (both the power-on "LONG RAM TEST" -- and it sure is long -- and the Apple-supplied diagnostic disk). What can I do to improve this? Is this a bug in 4.1.5? -- ---------------------------------- personal: http://www.armory.com/~spectre/ -- Cameron Kaiser, Floodgap Systems Ltd * So. Calif., USA * ckaiser at floodgap.com -- Aibohphobia, the fear of palindromes. -- Brian Braunschweiger --------------

19 years, 3 months

Anyone here in NOLA?

by vcf＠siconic.com

I hope and pray that no one here got stuck in the nightmare that is unfolding in the South. This is a calamity of Biblical proportions, and something I'd only wish on people that I truly hate. -- Sellam Ismail Vintage Computer Festival ------------------------------------------------------------------------------ International Man of Intrigue and Danger http://www.vintage.org [ Old computing resources for business || Buy/Sell/Trade Vintage Computers ] [ and academia at www.VintageTech.com || at http://marketplace.vintage.org ]

19 years, 3 months

Anyone here in NOLA?

by ajp166＠bellatlantic.net

> >Subject: Anyone here in NOLA? > From: Vintage Computer Festival <vcf at siconic.com> > Date: Wed, 31 Aug 2005 18:50:03 -0700 (PDT) > To: Classic Computers Mailing List <cctalk at classiccmp.org> > > >I hope and pray that no one here got stuck in the nightmare that is >unfolding in the South. This is a calamity of Biblical proportions, and >something I'd only wish on people that I truly hate. > Being an active ham I sometimes work the traffic nets on VHF. For a disaster of this magnitude and local comms bing munged badly that amounts to handling "health and welfare" traffic either originating here in MA or desitined for down there from here. There are more local to that area hams active in establishing local comms so that messages can move in and out of the area as well as local coordination of agencies (FEMA, Local gov., Red Cross, Salvation Army and others.). I happen to have traveled to the hardest hit area a few years ago and as it is none of the known landmarks are standing. This will leave a lasting effect greater than Camile did many years ago. Allison

19 years, 3 months

does any read punch cards anymore?

by brad＠heeltoe.com

Remember punchcards? Does anyone read them these days? I'm just curious if anyone does, and if they do, how they do it. Someone approached me with some tapes to read and they also had 2 boxes of cards. I remember a nifty desktop card reader attached to a PDP-8/L once. I never used it but it sure seems like it would be easy/fun to wire it up to something more modern. Do small desktop card readers exist anymore? Anyone got one? (I can hear the chorus now - "medication time!" :-) -brad

19 years, 3 months

OT: History Channel show on "Wiring America"

by news＠computercollector.com

9:00PM tonight on Modern Marvels, and again at 1:00AM. ----------------------------------------- Evan Koblentz's personal homepage: http://www.snarc.net Also see: http://groups.yahoo.com/group/midatlanticretro/ Where did PDAs come from? http://www.snarc.net/pda/pda-treatise.htm *** Tell your friends about the (free!) Computer Collector Newsletter - 775 readers and no spam / Publishes every Monday / Write for us! - Mainframes to videogames, hardware and software, we cover it all - W: http://news.computercollector.com E: news at computercollector.com

19 years, 3 months

Any Data I/O 29B / PROMlink 6.10 / LogiPak experts out there?

by ethan.dicks＠gmail.com

Trying to get the ball rolling with my recently-aquired Data I/O 29B, I have PROMlink 6.10 working perfectly with the Unipak 2B, testing out operations with some TI 27C256s, but I'm having problems getting the LogicPak to cooperate. >From inside PROMlink 6.10, I can send Intel Hex files to the 29B when the Unipak 2B is loaded, I can verify devices, I can blank check, and it all works. Referencing the "using computer remote control" application note, when the LogicPak is loaded, I can manually send commands from page 4 like "HHHH @" to set the device family code (the right socket lights up), "[" to return the device family code, "B" for blank check (and it _can_ tell blank from non blank parts), and "T" for illegal bit test... However, as soon as I pick an in-app operation that goes out to the programmer, it spins a character-based "in progress" flag for 8-10 seconds while "setting up" the programmer, then I get a red dialog box that says... "Timeout ... ... while sending VERIFY PASSES to the programmer" and I can't get any operations initiated (blank check, load, etc). Does this ring any bells with anyone? I've never worked with logic devices and Data I/O hardware - we had an older programmer at Software Results, perhaps a Data I/O 19. I used to program 6309 PROMs and lots of 2764-27512-sized EPROMs on it from the console pad. I'm new to a) PROMlink, and b) the LogicPak. Also, if anyone has LogicPak firmware newer than 1992, that might be nice to play with, too. Thanks, -ethan

19 years, 3 months

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test-drb September 2005