test-drb November 2007

test-drb@ccmp.vtda.org

229 participants
508 discussions

Free Alpha System 2000 4/233? : Dorset UK

by mjd.bishop＠emeritus-solutions.com

Yours for the holidays. Free Alpha System 2000 4/233? Collection only >from Dorset UK. PartNo 455YD-A9, condition / parts as seen in the jpegs. Pdfs are "information only". Obtained as part of a job lot. Condition is understood to be "Powers up and self tests OK but that's all I know about DEC systems. Has a video card, 5 x scsi i/o, fibre channel/RJ-45 network card". Has not been powered on since acquisition. Must be gone for Xmas -- you know what that means ... I hope someone wants it, if only for parts. Sincerely Martin Note These files are each 0M5 to 1M0 in size http://www.emeritus-solutions.com/alpha/A2k_Isometric.jpg http://www.emeritus-solutions.com/alpha/A2k_Front.jpg http://www.emeritus-solutions.com/alpha/A2k_Left.jpg http://www.emeritus-solutions.com/alpha/A2k_Rear.jpg http://www.emeritus-solutions.com/alpha/A2k_Right.jpg http://www.emeritus-solutions.com/alpha/A2k_BackplaneL.jpg http://www.emeritus-solutions.com/alpha/A2k_BackplaneR.jpg http://www.emeritus-solutions.com/alpha/Alpha2000_technical_summary.pdf http://www.emeritus-solutions.com/alpha/EK-400MP-OP-A01.pdf

17 years, 4 months

Amiga TV Out

by RodSmallwood＠mail.ediconsulting.co.uk

Now that's interesting. So Amiga 2000 Models were availalable in PAL composite out for this side of the water. (I'm in the UK) Rod Smallwood -----Original Message----- From: cctech-bounces at classiccmp.org [mailto:cctech-bounces at classiccmp.org] On Behalf Of Jim Leonard Sent: 28 November 2007 06:42 To: General at icky.berkhirt.com; On-Topic and Off-Topic Posts Subject: Re: Amiga TV Out Rod Smallwood wrote: > I'm sure that I heard that some Commodore systems could do TV out Composite only, but yes. You could get better results with a "genlock" device; a few of them supported Y/C ("s-video"). I produced a DVD last year with footage of running Amiga programs and I had to resort to scan-converting the RGB port itself to get acceptable quality. My signal path was RGB port->vga adapter->R/G/B/H/V breakout cable->scan converter->Y/Cr/Cb output->Y/Cr/Cb video capture card. That sounds heinous, but the scan converter and the video capture card were very high-end broadcast-quality units (scan converter was RGB Spectrum Videolink 1650x; capture card was Black Magic Designs Decklink SP) and there were really only two generational losses (RGB->scan converter and scan converter->capture card). The quality from this process was an order of magnitude better than the A500 and A4000's composite video output port. > and were in fact used to produce CGI stuff for 'Babylon Five" That was a NewTek Video Toaster, not a stock Amiga :-) The Video Toaster hardware had it's own set of video output ports, IIRC, although I could be wrong as I've never used one. > Does anybody know which ones and could they do PAL or just NTSC? All models except the A4000 (and maybe the A3000, but I'm not sure) were made in NTSC or PAL specific versions, with a different color generator and crystal to match. The A4000 had a jumper on the motherboard that selected either NTSC or PAL timings. You could get any model to "emulate" the other by using free utilities like Degrader, but these only affected the RGB video output timing. I used Degrader extensively on my NTSC A1200 to get European PAL games to run, since they required a 50Hz display, but that didn't affect the composite video output port, which was still NTSC (although it output some quasi-NTSC-50-gibberish when running in "pal" mode). -- Jim Leonard (trixter at oldskool.org) http://www.oldskool.org/ Help our electronic games project: http://www.mobygames.com/ Or check out some trippy MindCandy at http://www.mindcandydvd.com/ A child borne of the home computer wars: http://trixter.wordpress.com/

17 years, 4 months

Teaching kids about computers...

by ajp166＠bellatlantic.net

> >Subject: Re: Teaching kids about computers... > From: woodelf <bfranchuk at jetnet.ab.ca> > Date: Mon, 26 Nov 2007 20:47:21 -0700 > To: General Discussion: On-Topic and Off-Topic Posts <cctalk at classiccmp.org> > >Chuck Guzis wrote: > >> So, I propose that programming be taught first in machine language, >> then assembly. That's how I learned to do it. > >Real or fictional machine? Real, use PDP-8 it's simple enough and not too many instructions. > >> Cheers, >> Chuck >> >PS. I bet with the right fictional machine, it could be a >easy step to building hardware. PISC Pitiful instruction set computer. A varient of TOY idea. There are others inlcusing a 4bitter. Allison

17 years, 4 months

IBM mechnical devices

by dm561＠torfree.net

Date: Tue, 27 Nov 2007 16:49:10 -0700 From: woodelf <bfranchuk at jetnet.ab.ca> Subject: Re: IBM mechnical devices >M H Stein wrote: >> But I didn't have anything as modern as a 407; In My Day we only had 402s!!! >> BTW, my claim to fame was making it multiply; they said it couldn't be done, so... >Has look up " 402 IBM " on the web. That is old stuff, a little more on topic than >what I have seen lately. >> Haven't seen any with peripherals on eBay lately though... >So how many of the those old beasts are still around? >Ben alias woodelf. >PS. How did you get it to multiply? ---------- Actually, I think there are a few still around, but by the time you add all the necessary "peripherals" you've filled a large room... Don't ask me to do it today, but it was the "add and shift" method used by most mechanical calculators. Doubt if I still have the "coding form" though (lots of little circles connected with lines drawn to represent wires; a *real* machine language, none of that wussy octal & hex nonsense of Kids Today...) m

17 years, 4 months

IBM mechnical devices

by dm561＠torfree.net

Date: Tue, 27 Nov 2007 16:15:29 -0800 From: "Chuck Guzis" <cclist at sydex.com> Subject: Re: IBM mechnical devices On 27 Nov 2007 at 16:49, woodelf wrote: >> PS. How did you get it to multiply? >Added a 602-A? >Cheers, >Chuck ---------- Actually, it was a Big Day when we replaced the 602-A with a 604; lots o' blinkenlights and warm glowing tubes instead of all those clicking relays and turning cams. Only electronic gear in the place until we replaced most of it with Canada's first Burroughs B-260, grandson of the famous Lost in Space B-205. Picture of B-260 (and some other interesting pix & facts) at: http://ed-thelen.org/comp-hist/BRL64-b.html#B260/B270/B280 Ah, the good old days... m

17 years, 4 months

the Commie 64 lives?

by chrism3667＠yahoo.com

We all know decent emulators are a click away. But what do you do once you're downloaded and installed the emulator? Much C64 s/w was copy protected to begin with, so does having an emulator give you the ability to do much more then code from scratch? Is there s/w out there? ____________________________________________________________________________________ Get easy, one-click access to your favorites. Make Yahoo! your homepage. http://www.yahoo.com/r/hs

17 years, 4 months

IBM mechnical devices

by dm561＠torfree.net

-----------Original Messages: Date: Tue, 27 Nov 2007 15:54:54 -0800 From: davis <davis at saw.net> Subject: Re: IBM mechnical devices woodelf wrote: > M H Stein wrote: > >> But I didn't have anything as modern as a 407; In My Day we only had >> 402s!!! >> BTW, my claim to fame was making it multiply; they said it couldn't >> be done, so... > > Has look up " 402 IBM " on the web. That is old stuff, a little more > on topic than > what I have seen lately. > >> Haven't seen any with peripherals on eBay lately though... > > So how many of the those old beasts are still around? > Ben alias woodelf. > PS. How did you get it to multiply? > > > How can you do any business work on hardware that can't multiply? The mind boggles! Jim Davis -------------Reply: Ah, no, for that there was the 604 Calculating punch, equivalent to a numeric co-processor (but in two somewhat larger cabinets !); since it was in big demand it made sense to do simple multiplication on the 402s instead of waiting for your turn. m

17 years, 4 months

IBM 5271 (PC3270) host interface options

by classiccmp＠memory-alpha.org.uk

Hi, > I believe some Microsoft Bus Mouse cards had this facility too.... Indeed, all of the ones I've seen have a "slot 8" jumper on them. I've still got a couple knocking around somewhere along with their associated meeces. TTFN - Pete.

17 years, 4 months

SASI and XT/IDE info

by kelly＠catcorner.org

> --- Jules Richardson <julesrichardsonuk at yahoo.co.uk> > wrote: > > > Chris - you probably have something quite unique > > there. Whilst things calling > > themselves SASI interfaces are common in old > > 8-bitters, this is the first I've > > heard of one for the PC... > > They're not specific to anything AFAIK. They're not > ISA cards if that's what you were led to believe. > They're the same size as a floppy, or old klunker of a > hard drive (similar to an Ampro Little Board). > The guy who gave them to me supposedly had a drawing > for an interface that would allow *any* computer with > a *parallel* connection to utilize these boards. Kelly > Leavitt (who sailed off the end of the earth > apparently, haven't seen him around) should know a bit > more about these things. I could e-mail Roy Soltoff > about the schematics, but I doubt he held onto them. The rumors of my death have been greatly exaggerated. I've just spent the last 8 months working on a personal project that I'm not quite finished with yet. Nothing to do with classic computers though. I have a bunch of these boards. They are WD SASI to MF boards. See the WD1002-SHD docs on bitsavers. Kelly No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.5.503 / Virus Database: 269.16.8/1154 - Release Date: 11/27/2007 11:40 AM

17 years, 4 months

SASI and XT/IDE info

by chrism3667＠yahoo.com

so what's a SASI board good for? I found and took pictures of my Acculogic sIDE-1/16 board (XT/IDE) if anyone would like to take a look. Besides 1 PAL chip, all standard TTL. Would be nice to get these things cloned. ____________________________________________________________________________________ Be a better pen pal. Text or chat with friends inside Yahoo! Mail. See how. http://overview.mail.yahoo.com/

17 years, 4 months

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test-drb November 2007