test-drb May 2005

test-drb@ccmp.vtda.org

248 participants
723 discussions

ProPort 656 audio / DSP box and Sun interface board...

by julesrichardsonuk＠yahoo.co.uk

Another find (along with a SPARCBook, ooh!). Interesting thing about this external box is that the manual says it was designed primarily for NeXT compatibility. It's a dual input / dual output audio processor with a DSP interface for connecting to a wide variety of machines. This one came with an S-32C SBUS interface card for a Sun, but the unfortunate thing is that the hard disk that the owner had with all the interface code on is a little unwell, so it remains to be seen if I can drag anything off it. In the meantime though, anyone else have one of these critters, preferably hooked up to a Sun with some example code they can send me? I've got the manual for the ProPort box itself, which goes into some detail about programming, but it seems that the user was left pretty much on their own to write whatever custom app they needed to actually make use of it. I gather that Ariel who made it (and the I/F card) used to run a BBS with example code on, but of course that's long gone... cheers Jules

19 years, 2 months

Sig-Micro CP/M software 8 inch disks available

by SUPRDAVE＠aol.com

I came across a 8 inch disk file box that's labeled SIG-MICRO CP/M SOFTWARE VOLUMES 1-246. There's around 200 disks in there with handwritten labels listing the disk numbers. I have no way of reading these disks. Anyone familiar with these? Are they worth archiving?

19 years, 2 months

[Semi-OT] MacOS X Terminal.app keymappings

by mcesari＠comcast.net

On Feb 19, 2005, at 9:30 PM, Zane H. Healy wrote: > I've got a semi-ontopic problem since I'm using it to connect to > OpenVMS and PDP-11's. > > Does anyone know of a way to get the keycodes and add mappings for > additional keys than are listed in the com.apple.Terminal.plist > file? Apple's handling of the keypad is pathetic, so much for > "strict" emulation, but as it's still about the best out there > (besides my hacked Xmodmap for using a xterm) I'd really like to > get the problems fixed. > > Zane > Try GLterm. You can get it at: http://www.pollet.net/GLterm/ 10 bucks shareware. It does VT102 emulation and has proper keypad functionality -- toggle between app and numeric keypad modes by cmd-numlock as numlock is *really* the PF1 key :) The only downside is that you have to use F1 - F4 for PF1 - PF4 in numeric keypad mode. Double wide and double high characters are rendered properly. Characters are fuzzy under some conditions such as 132 column mode in a too narrow window and the double sized characters are somewhat fuzzy. This is due to the way he uses OpenGL to draw the characters. (See the Q&A) The graphics and line drawing characters (char. set 0) are there, too. It does a good job dealing with vttest (better than either xterm or Terminal.app), but no VT52 emulation. EDT and SED keypad works in TOPS-20. Not associated with the author, just pleased with the result. Mike

19 years, 2 months

The Order of St. Leibowitz (terribly OT) was: RE: ZIP

by Saquinn624＠aol.com

So what archive format should we use for the blessed saint's shopping lists? Scott Quinn

19 years, 2 months

SGIs and 64-bittiness

by Saquinn624＠aol.com

positive about IP28 (R10k), uname says IRIX64, all docs indicate R8k is 64 as well.

19 years, 2 months

I'm in Dayton - where's everyone else? ;-)

by zmerch＠30below.com

I'm in dayton(ish) at the Holiday Inn in Fairborn just off I-675. I can't easily check my main email account, as I only have webmail here and I get nearly 500 msgs per day on that account, for which I have a bajillion Eudora filters at work at home, but not the laptop. I can be reached at my secondary account (z at 30below dot com) or also at my ham radio account (which I rarely use, but I'll check a couple times a day over the weekend) at ab8kk at 30below dot com. I have OnStar in my truck if my cellphones outta range, but of course, that'll only work whilst I'm in the truck.. ;-) If you see a dark red Chevy Avalanche with a Michigan National Guard Plate (with an Apple initialism embedded in it, no less!) dollars to donuts it's mine. It'll be locked, but you can leave a note on the windshield... ;-) My cell number is AC 906 rest 440 6909, I should have it on all evening and tomorrow -- my plan doesn't cover OH, so keep 'er short... ;-) [[ The *best* plan I can get offers MI and WI; that's it. :-( ]] Is the plan still Friday nite around 5:30 or 6:00 pm? M$ MapPoint doesn't have a "Porky's" in a 6 mile radius of Hara, but there is a restaurant called "The Rib Spot." Is that it? I'm gonna be at the hamfest prolly all day tomorrow, cell phone on... If we're gonna get together, email/call me, eh? See ya laterz (Hopefully!), "Merch"

19 years, 2 months

Neon bulb logic elements link?

by dwight.elvey＠amd.com

>From: "James Fogg" <James at jdfogg.com> > >> > The site that had some scanned pages from a book, about using neon >> > bulbs as logic elements. I planned to read it later, and then lost >> > it. Anyone seen that site? >> >> You mean the stuff in this zip file? >> http://computer-refuge.org/classiccmp/neon_lamp_logic/lamp.zip > > >I seem to recall that neon's behave as diodes. I might be wrong. > Hi As tunnel diodes maybe but not your general purpose diode. They used the negative resistance characteristics of the neon lamps to create a 2 state circuit. The difficulty was that not only did this region drift with aging but it was also effected by the occasional radioactive particle. The negative resistance region is small as well, making it difficult to make circuits that worked. For logic functions, diodes in general lack the ability to invert. This is critical for any computing of reasonable complexity. Dwight

19 years, 2 months

Anyone know this guy!?

by news＠computercollector.com

And if so, can you explain what he's smoking? http://www.clelsplace.com/eli/ The press release attached to this link is dated May 21, 2005. Oddly, it appears he did the same thing in 2002: http://yahoo.pcworld.com/yahoo/article/0,aid,104772,00.asp ----------------------------------------- Evan Koblentz's personal homepage: http://www.snarc.net Also see http://groups.yahoo.com/group/midatlanticretro/ *** Tell your friends about the (free!) Computer Collector Newsletter - 725 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, 2 months

Is it just me...

by wmaddox＠pacbell.net

--- Vintage Computer Festival <vcf at siconic.com> wrote: > I'm not sure who dkdkk (the buyer) is but he/she's > probably here either > actively or lurking. At any rate, he/she buys a lot > of stuff through > eBay, and it is consistently what I would consider > "stupid money". I'm > sure they're happy with their purchases, especially > if money is no > object to them, but its really driving up the price > of stuff > unnecessarily. In all fairness, the prices he pays are only marginally more than the runner-up bidder, so he's not the only one driving up the prices. An acquaintance of mine knows 'dkdkk' through his involvment with the old Computer Museum in Boston. It's a reasonable conjecture that he might have an interest in historical preservation and scholarship. I wonder if someone like Al might want to contact him and see if something might be arranged to get his material scanned into the archives. A guy with pockets that deep snapping up so much good material would be an asset to the community if he could be brought on board. --Bill >

19 years, 2 months

PDP 11/45 light chaser

by GOOI＠oce.nl

The drawback of the light chaser program that uses the RESET instruction is that the heads load and unload of the RX02 drive in my PDP-11/40. That clunck-clunck sound is not pretty for a longer while ... - Henk, PA8PDP. > -----Original Message----- > From: cctalk-bounces at classiccmp.org > [mailto:cctalk-bounces at classiccmp.org]On Behalf Of Paul Koning > Sent: dinsdag 24 mei 2005 15:40 > To: cctalk at classiccmp.org > Subject: Re: PDP 11/45 light chaser > > > >>>>> "Tony" == Tony Duell <ard at p850ug1.demon.co.uk> writes: > > >> I'm not much of a Unibus expert but I seem to remember there's > >> something odd about what's displayed in the lights, and how you > >> get it to change. > > Tony> THe easiest way on an 11/45 (or an 11/70?) is to store the > Tony> value at the address used for the switch register (777570 IIRC) > Tony> and set the rotary knob to the right of the data lights > Tony> appropriately. > > Definitely, if you have a machine with a display register (which is > how the write-only register at 777570 is referred to). > > The "data paths" setting roughly matches what you get on an 11/40, > which doesn't have that switch. In that case, the lights display the > contents of R0 during a WAIT (and apparently also during a RESET). > The fact that this happens for WAIT is the basis of the "spinning > lights" idle code used in various operating systems (RSTS for one, > though not RT11 which uses the display register instead). > > paul

19 years, 2 months

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test-drb May 2005