test-drb January 2002

test-drb@ccmp.vtda.org

303 participants
1201 discussions

by csmith＠amdocs.com

I goofed. The earth wire in the 4D is, indeed, green. Chris Christopher Smith, Perl Developer Amdocs - Champaign, IL /usr/bin/perl -e ' print((~"\x95\xc4\xe3"^"Just Another Perl Hacker.")."\x08!\n"); '

22 years, 10 months

80 col Apple ][

by fmc＠reanimators.org

M H Stein <mhstein(a)canada.com> wrote: > Any ideas from you Apple experts how I tell CP/M software > to use an 80 column card? Display is 40 col from motherboard, > all I get from 80 col card is a blinking cursor. If you're using a ][ or ][+, put the card in slot 3. There was a convention for what cards went in which slots: #1: printer interface #2: communications (modem/serial) interface #3: display interface Pascal and CP/M would probe the C[123]00H ROM spaces for these slots to determine if there was a capable card in the slot, and if so it would use the card for that function. The neat thing about this was that it meant you could stick either a parallel or serial interface in #1 depending on what kind of printer you had, or you could stick either a serial or 80-column card in #3 -- you would use the serial card if you wanted to use Pascal or CP/M with an external 80-column terminal. > No switches or id on 80 col card; it has 3 EPROM sockets, > but only ROM2 & ROM3 are present. No reason why ROM1 should > have been removed, so I'm hoping it was an option. Could be (IIRC Videx cards supported an optional character set ROM), or it could be the ROM that would appear at C300H with the card in slot 3. If it's the latter, CP/M won't see the card. -Frank McConnell

22 years, 10 months

getting OT: tar, NeXT, and Mac OS X [was: RE: PKZIP problem]

by DAW＠yalepress3.unipress.yale.edu

> ---------- > From: Jeff Hellige > > > .pkg is probably specific to NeXT, as I haven't heard of it under > Unix. > > As the name might suggest, it is a 'package' containing the > program and all it's associated files, likely to include installation > scripts and anything else needed. That then generally creates an > .app file, which is actually a directory wich includes the files but > is seen by the NeXT as being a single executable file. > ... And now Mac OS X as well ( But Mac OS's >= 9 would see it as a folder only). Then again, Stevie did create NeXT, and now he's got Apple under his thumb... > > -spc (And on every Unix system I've used I've found tar ... ) > > Drop to the CLI on a NeXT and you'll find tar there as well. > -- > You know, I would like to eventually get myself a NeXT system, to see where (parts of) OS X came from. Before, I thought Windoze98 was better than MacOS (not by much, though). Now that I'm using Mac OS X as my workstation, I'm liking it much better. Sorry, I'll try to keep it On Topic. If anyone in the New Haven CT area does have a NeXT system available, let me know. BTW, I'm kinda poor right now... :-/ --- David A Woyciesjes --- C & IS Support Specialist --- Yale University Press --- mailto:david.woyciesjes@yale.edu --- (203) 432-0953 --- ICQ # - 90581 Mac OS X 10.1.2 - Darwin Kernel Version 5.2: Fri Dec 7 21:39:35 PST 2001 Running since 01/22/2002 without a crash

22 years, 10 months

VT131 needs keyboard help

by csmith＠amdocs.com

Another weekend project of mine has been working on a VT131 terminal. The terminal seems to work fine when receiving data. The terminal always powers up with a "4" in the corner (keyboard error?). Typing characters on the keyboard will give no response from either the terminal, or the system to which it's connected. The lights flash (all at once), and the speaker beeps when power is applied to the terminal. No lights are ever activated afterwards, though. Having taken apart the keyboard, it does have an empty socket for a DIP. Anyone know what this is? Is it possible that this is a "lookalike" keyboard? Did DEC make different models for different VT100 terminals -- were they compatible? If this is an authentic DEC keyboard, will it be marked as such somewhere? If so, how? The key layout _looks_ like VT100, but... The reason I'm asking about the brand is that there was another terminal at the junk yard, completely trashed, which looked like a VT100, but had a completely different branding. I forget the brand right off, but I'm afraid I may have picked up the keyboard for the dead terminal, and that it may not be compatible at all. Failing a way to positively identify the keyboard, are there any common modes of failure along these lines? Also, I'm guessing at this point that the terminal is in good shape. Does anyone know where to get a keyboard? Chris Christopher Smith, Perl Developer Amdocs - Champaign, IL /usr/bin/perl -e ' print((~"\x95\xc4\xe3"^"Just Another Perl Hacker.")."\x08!\n"); '

22 years, 10 months

Small UNIX boxes

by DAW＠yalepress3.unipress.yale.edu

> ---------- > From: Rick Bensene > > Quite off-topic, but probably of interest -- > > For small Unix machines, how about the wristwatch that runs Linux and > uses X11 for the display, developed at IBM? > > The original prototype used a small backlit LCD display, but the latest > version uses an Organic LED (OLED) display that is absolutely stunning! > > The machine runs with an ARM 7 CPU (Cirrus Logic EP7211), 8 Megs of > flash memory and 8 Megs of DRAM. The OLED display is 640x480. It has a > built-in Bluetooth transceiver, Lithium Polymer rechargeable battery, a > combination of touch screen and a jog dial for user interface, infra-red > interface. The watch 'program' is 'xclock'! > > There's a great article (with lots of pix) about the development in the > latest edition of IEEE's "Computer" journal (January 2002). > > Regards, > Rick Bensene > The Old Calculator Web Museum > http://www.geocities.com/oldcalculators > > > > Sounds pretty neat. Do you know of a link for this story, or was it on paper? --- David A Woyciesjes --- C & IS Support Specialist --- Yale University Press --- mailto:david.woyciesjes@yale.edu --- (203) 432-0953 --- ICQ # - 90581 Mac OS X 10.1.2 - Darwin Kernel Version 5.2: Fri Dec 7 21:39:35 PST 2001 Running since 01/22/2002 without a crash

22 years, 10 months

80 col Apple ][

by mhstein＠canada.com

Any ideas from you Apple experts how I tell CP/M software to use an 80 column card? Display is 40 col from motherboard, all I get from 80 col card is a blinking cursor. No switches or id on 80 col card; it has 3 EPROM sockets, but only ROM2 & ROM3 are present. No reason why ROM1 should have been removed, so I'm hoping it was an option. Both video outputs and the built-in RF out all use RCA connectors, BTW :) And in reply to the question about SO239 (AKA UHF or 83 Series) connectors for video, the commercial (as opposed to homebrew) video out adapter on my PET uses one; other than that, in my experience the mass-produced systems used either RCA or proprietary connectors, and S100 & similar multi-card chassis used BNCs when they had internal video. mike

22 years, 10 months

Update: Ill MV3100

by DAW＠yalepress3.unipress.yale.edu

> ---------- > From: Matt London > > Hi, > I've been playing... > > It turns out the box seems much happier if the only devices on SCSI-A > are the RX23 and the RZ23 - no CORRPTN messages so far with that setup. > But that means I can't fit both the 1G VMS drive and the 1G NetBSD drive > in the case :&/ > > Well, if it's anything like the VAXServer 3100, can't you plug into SCSI-B inside the case? Maybe a new cable, or some sort of tap into the existing cable? No, I've never actually _seen_ a MV3100, either the guts or the outside... :-) --- David A Woyciesjes --- C & IS Support Specialist --- Yale University Press --- mailto:david.woyciesjes@yale.edu --- (203) 432-0953 --- ICQ # - 90581 Mac OS X 10.1.2 - Darwin Kernel Version 5.2: Fri Dec 7 21:39:35 PST 2001 Running since 01/22/2002 without a crash

22 years, 10 months

1520 plotter (was RE: Your VIC-20 is worth $300!!! W@W!)

by Robert_Feldman＠jdedwards.com

A good model railroad hobby shop (or a major suppliers like www.walthers.com) will have mould making and resin casting kits. Some of the current casting resins should be strong enough to use as a gear. You can make an open mould, pour the resin, then put a glass plate over the open side to smooth the casting, or just sand it smooth when it has cured. Another thing to try would be to make a mould from dental plaster or Hydrocal (a harder-than normal plaster of paris, available at hobby shops), then heat it and open cast with a low melting point metal. What I would do here is make the mould double-deep, then file the resulting casting to the correct thickness. Bob -----Original Message----- From: ard(a)p850ug1.demon.co.uk [mailto:ard@p850ug1.demon.co.uk] Sent: Wednesday, January 30, 2002 4:07 PM To: classiccmp(a)classiccmp.org Subject: Re: 1520 plotter (was RE: Your VIC-20 is worth $300!!! W@W!) <snip> > > There seem to be several possibilites : > > > > 1) Make a mould and injection-mould them yourself. I think the David > > Gingery injection moulding machine could easily do it, but the mould > > would be very hard to make (cutting internal teeth on a mould that size) > > Might not produce a clean casting, either. I bet the originals were moulded rather than machined.... Maybe then cleaned up by machining, though, but I doubt it, actually. The original gears are not that good quality. <snip>

22 years, 10 months

S/36Doc (skating on thin ice)

by Antonio.Carlini＠riverstonenet.com

>While the offer to scan them was certainly noble, I really wouildn't expect >anyone to actually do it. We're talking about perhaps 10,000 pages of >documents here! I'm not offering but ... I use a sheet-feed scanner that can work its way through maybe 300 double-sided Legal pages in about two hours of casual top-up-the-in-tray-on-the-way-to-coffee usage. So that's 10 weeks max. Now if you had to do the pages manually with a desktop scanner, you'd want payment plus medical bills :-) Antonio

22 years, 10 months

Scanning Microfiche (was: VT131 needs keyboard help)

by Antonio.Carlini＠riverstonenet.com

Andreas Freiherr wrote: >Even if you were using a true 1200dpi device, you would end up with less >than 30dpi after blowing up the image 1:42 back to it's original size. >Sure, that's not what we want. I've seen fiche scanners available commercially (I just did a google search when this came up a few months ago). All the ones I found seemed to be $10K+ ... >Some years ago, a friend of mine managed to get a couple of frames >printed off these fiches, but the results weren't too good: poor >contrast was the main problem. If you'd scan these prints, the results >would certainly be unreadable. Back in the early 1990s, I had access to a fiche printer - i.e. something that would print an A4 page of whatever the fiche reader was looking at. No automation (if you wanted the whole fiche as a set of pages you had to line it up yourself and hit a button for each page). That produced reasonable quality copy. If I still have any around I'll try to scan a sample page. I have no idea how much this thing cost but it was about the same volume as three or maybe four 21" monitors. Antonio

22 years, 10 months

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test-drb January 2002