test-drb February 2013

test-drb@ccmp.vtda.org

185 participants
407 discussions

by rampaginggreenhulk＠yahoo.com

------------------------------ On Wed, Feb 13, 2013 9:40 AM PST Scott Quinn wrote: >About a year ago I got a Turbo XT clone (8-ish MHz V20, I think, full memory). It needs a bit of work (HDD, looks like a cap blew on the floppy, monitor needs a new CEE receptacle wired in), but it seems to power up fine. > >I've been shoveling it around for the past year-plus, and this is the first time I've even turned it on, which gets me wondering whether it's worth keeping or not, especially when virtualized PCs are so easy to do. I have a 386 and Pentium with ISA slots, so that's not a big deal. For those with old clones, what do you use them for, or is it just mostly nostalgia? Could you give more specifics. Date codes, possibly manufacturer? I'm not going to delude myself thinking it could be a rare clone I've been searching for, and that's not even my purpose for asking. Just curious how old it is. In my stash for instance I have a rebadged AMT ATjr (they kept it in the rom screen, but IBM forced them to change the name to AMTjr). Yes it's mostly about sentiment I'm sure. Chances are there's some kid or whoever who'd be happy to have it. Or a community college. I doubt there are still any 16 bit assembler courses being taught anywhere on planet earth, but it wasn't too long ago there was. But then again perhaps the skills are still necessary to keep those quasi mythical ten billion 80186 embedded apps running.

11 years, 5 months

Cassette drive for HP 98xx calculator (eBay, currently cheap)

by hp-fix＠xs4all.nl

Yes, it is for use with 98x0 -----Oorspronkelijk bericht----- Van: "William Maddox" <wmaddox at pacbell.net> Verzonden: ?13-?2-?2013 09:28 Aan: "cctalk at classiccmp.org" <cctalk at classiccmp.org> Onderwerp: Cassette drive for HP 98xx calculator (eBay, currently cheap) I think this was used with the 9800-series calculators. http://www.ebay.com/itm/s/181076085394 --Bill

11 years, 5 months

Cassette drive for HP 98xx calculator (eBay, currently cheap)

by wmaddox＠pacbell.net

I think this was used with the 9800-series calculators. http://www.ebay.com/itm/s/181076085394 --Bill

11 years, 5 months

Computing - then & now

by tom_a_sparks＠yahoo.com.au

----- Original Message ----- > A big part of the reason IMO for the excitement in the earlier years of > computing technology was that models were varying and unique, whereas today > they are uniform and ubiquitous. There's not much today that differentiates > computers from the desktop machine on up to super computers except for the > scale. "Back then" computers used a variety of different processors > and had > different models had strong points to them, storage technology was > different, etc. > > Not to say that modern day computing technology isn't impressive. But we > have since at least the last decade or two entered an era of incremental > changes rather than radical ones. > -- Geoffrey Oltmans I feel the guis have also stagnated as there is none-thing radical different between windows, Mac and linux excepted underlying operating system the only system that really worth looking at are the homebrew/clones/single-board-computers system --- tom_a_sparks "It's a nerdy thing I like to do" Child of the Internet born 1983 Please use ISO approved file formats excluding Office Open XML - http://www.gnu.org/philosophy/no-word-attachments.html Ubuntu wiki page https://wiki.ubuntu.com/tomsparks

11 years, 5 months

Tech:Then & Now

by c.murray.mccullough＠gmail.com

This is further to my note on Technology: Then & Now: As F. Chisholm says it?s the ?kitschy lowbrow tastes of the public? in contrast to the sophisticated highbrow tastes of the uber?rich as to who really influences technology development today. It seems the uber-rich are winning. But do we need to be at their mercy or can we ?rebel? through programming (the rise of the Raspberry Pi for instance) or is this just for people in the know as it once was for the hobbyist/experimenter of yesteryear. In our hurried lives, to stay above water, we want the ?simplified? way of using computer technology ? to do what we want, when we want. Whether one is a software or hardware person seems to me to be irrelevant except if you are knowledgeable about technology, i.e., know how it works. I used to know how my Coleco ADAM worked but I don?t know how my Dell Inspiron 15R works. Nor do I really are. It does what I want it to do. Well, most of the time! Is this not what all of us want? Murray--

11 years, 5 months

Xxdp device drivers

by roe＠liveblockauctions.com

Does anyone have macro-11 source code for _any_ xxdp 2.5 device driver? Dl.sys, anything at all. I want to create a new driver...

11 years, 5 months

CompacTape/DLT Media

by tshoppa＠wmata.com

> I'm trying to restore a Data General MV/2500 (c.1989) which contains what DG referred to as a '130MB CTD'. It's actually a Fujistu M2451A. > My question is: what is the latest generation of DLTs that I can use in the drive? Will DLTtape III cartridges work or do I have to try to find CompacTape IIs from somewhere? I know that TK50's and TK70's cannot use DLTtape III cartridges. Coercivity of the magnetic media is wrong. Some of the mid-generation DLT drives can read TK50 and TK70 CompacTapes but cannot write them. I don't have any actual experience with the M2451A. I am guessing that it is something like a DEC TZ30. For all I know, maybe Fujitsu made the TZ30! It "smells" different than the DEC and Quantum drives and I've often wondered about that. That's a tough nut, restoring a system to use a tape drive for which you have no media. If you had old media to read, then it would be far easier to justify some effort. Is the M2451A a SCSI drive? Just hoping out loud that it is, and that the DG OS doesn't care about drive maker, in which case you could use a far more available cartridge drive and carts instead. Tim.

11 years, 5 months

Depraz/Digimouse/P4 mouse

by BHuntsman＠mail2.cu-portland.edu

Anyone on here have one of these? Anyone manage to get one working on a standard serial port, or have the pinout? Thanks! -Ben

11 years, 5 months

Itch before scratching tape

by jonas＠otter.se

On Sun, 10 Feb 2013 18:56:15 -0800, Chuck Guzis <cclist at sydex.com> wrote: > I discovered two reels of tape--I assume that they're just different > versions FORT045 and FORT046, as they have different dates (86 and 87) > printed on them. > > Glenn has the ZIP of the TAP files. I can send copies to whoever wants > them. > > Do let me know if either amounts to a hill of beans. > > --Chuck > Wouldn't that be VMS installation tapes for FORTRAN v. 4.5 and v.4.6? It sounds like what they would be labelled. /Jonas

11 years, 5 months

DDS/DLT compatibility levels [was RE: CompacTape/DLT Media]

by RichA＠vulcan.com

From: Paxton Hoag Sent: Monday, February 11, 2013 6:29 PM > If it is a DDS you can find auxillary drives that should read DDS DAT > tapes. Like DLT there are 1 through 4 versions (i.e. DDS or DDS1, > DDS2, etc.), usually backward compatible. >From personal experience: A DDS2 drive will read and write DDS1 or DDS2 tapes. A DDS3 drive will read and write DDS2 or DDS3 tapes, and read DDS1. A DDS4 drive will read and write DDS4 tapes, might read and write DDS3 tapes correctly, and might read DDS2 (maybe). 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 http://www.LivingComputerMuseum.org/

11 years, 5 months

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test-drb February 2013