test-drb

test-drb@ccmp.vtda.org

101090 discussions

by michael.99.thompson＠gmail.com

> From: Pontus Pihlgren <pontus at Update.UU.SE> > To: "General Discussion: On-Topic and Off-Topic Posts" < > cctalk at classiccmp.org> > Cc: > Date: Tue, 21 Jan 2014 09:42:11 +0100 > Subject: Re: eBay PDP-12 > On Thu, Jan 16, 2014 at 02:51:54PM +0000, Adam Sampson wrote: > > Pontus Pihlgren <pontus at Update.UU.SE> writes: > > > > >> How many of these exist? > > > I can't know for sure, but here is a lower bound: 11 > > > > Robert Krten has a longer list of potentially-surviving PDP-12s: > > http://dustyoldcomputers.com/pdp12/location.html > > All the ones I listed are in Krten's list. > > /P > The RICM is negotiating with a private collector to get a PDP-12 that is not on Robert's list. Michael Thompson

11 years, 5 months

VAXBrick value?

by BHuntsman＠mail2.cu-portland.edu

Anyone here have a VAXBrick, or know what a fair price on one might be? I've got a drop on one but the guy wants almost $2,000... I know they're rare and all, but that seems a bit on the ridiculous side to me... I could be totally wrong though. Any input is appreciated. -Ben

11 years, 5 months

Any interest in DEC Storage Expansion Units?

by lproven＠gmail.com

I suddenly have 5 of the things! I think that 2 of them are empty, but 3 have hard disks in: 1 * RZ52 (5.25" FH) 2 * RZ25 (3.5" HH) - I think this is a rebadged Conner CP3100, a 105MB drive I don't yet know if they work. Of any interest to anyone, do you folk think? -- Liam Proven ? Profile: http://lproven.livejournal.com/profile Email: lproven at cix.co.uk ? GMail/G+/Twitter/Flickr/Facebook: lproven MSN: lproven at hotmail.com ? Skype/AIM/Yahoo/LinkedIn: liamproven Tel: +44 20-8685-0498 ? Cell: +44 7939-087884

11 years, 5 months

cctech Digest, Vol 125, Issue 41

by ajp166＠verizon.net

On 01/21/2014 11:03 PM, cctech-request at classiccmp.org wrote: >> Hi guys, >> >> I've looked trough my Z80 Stuff some minutes before b'cause a friend wanted >> an Z80A CPU, ok found it. In a Bag 6 uPD780-1 which are also Z80A's, I found >> two uPD7201C. I've googeled some time before that the uPD7201A is some >> Z80-SIO - alike, has an other Pinout for example and should be compatible > Well, it's synchronous/asynchronous serial chip, but I don't think it's > very similar to the Z80-SIO Its a SIO like part (same register structure) with one difference the interface is 8085/8088/8086 compatable. Its awkward to use with Z80 and why would one as the SIO can be had. The biggest differnce is the interrupt is a Call(8085) or vector(8088) and can interact with the 8259A. FYI the part was created by NEC and the 8274 was the licensed copy though Intel often lagged by a mask rev. Try google.. If I had a scanner I have the NEC Microcomputers data catalog, alas no scanner. Allison

11 years, 5 months

The mystery of the STRADDLEPRINT aka Axiom ParallAx CD printer interface

by drlegendre＠gmail.com

Now what the heck is going on here? I needed to hook up a printer to my Commodore 64, and as luck would have it, there was an interface among my stuff. It's a STRADDLEPRINT Interface with Graphics - but I had no manual for it, and didn't know how to configure it, etc. Google has nada for it. Digging through my manuals, I came across a bad photocopy of the manual for an Axiom ParallAx CD interface for Commodore. I thought maybe, just maybe, it might have some clues for me. So I start going over it.. and my luck, it seems to describe what I have rather well.. rather TOO well, in fact. As the similarities piled up, I finally opened the Straddle case and.. the board is marked "ParallAx CD ver. XX". So once again, what the heck is going on, here? Was Straddle actually Axiom / Parallax - or perhaps vice-versa?

11 years, 5 months

What to preserve from the pre-IP era

by mark.kahrs＠gmail.com

What about virtual circuit (not over IP) stuff? For example from Bell Labs: Datakit, Xunet, etc?

11 years, 5 months

Wolfgang Eichberger's PDP-11 OS History Blog

by captainkirk359＠gmail.com

I'm wondering if any one has archived the contents of Mr. Eichberger's blog pages that have a list the various PDP-11 operating systems? His old blogspot page says the content has moved to his new site. And the new site -- at least to me -- appears to be rather lacking in any form of content. It was a really good reference, and now that I finally have some time to actively get back into my classic computing hobby, I can't find the reference list of operating systems. (I mostly am trying to find the which version of RSX-11/M+ is most current, and which is the most current RSX-11/M+ is available for download.) Also, does anyone have a copy of the DSM-11 tape from the Computer Conservation Society webpage? Trying to download the image from their provided link 404's. Thank you, Christian -- Christian M. Gauger-Cosgrove STCKON08DS0 Contact information available upon request.

11 years, 5 months

cctalk Digest, Vol 125, Issue 42

by mtapley＠swri.edu

On Jan 20, 2014, at 4:23 PM, Al Kossow wrote: > Just throwing this out to see what other people think. > > I suspect we're at the tail end of the usage life of devices that don't speak IP. > I'm mostly thinking about networking devices 80's > 00's > > So, what needs to be preserved? How much of this does CHM need to do? Is any other > collecting institution already covering this? How much is within scope? Al, you are probably very far ahead of me, but I have two suggestions: 1) ?bridge? pieces - the Kindergarten example is probably a Dayna EtherPrint-T or Asante EN/SC type device that allowed a LocalTalk network to bridge to an Ethertalk network. In terms of long-term, serious restoration/preservation, having one of those available means having a device that could be (maybe) deconstructed to give information about both types of network. It also seems pretty helpful to anyone trying to restore hardware on the less-used (LocalTalk) side. 2) Interconnects used to parallelize processors in supercomputer families - Infiniband and the like. This may be a hard goal, but it could be that retiring supercomputer sites may have the stuff available, and recalling the Cray software discussion going on now, this might be a good time to ask. And, looking far ahead, some characteristics of these interconnects will be needed to supply the voracious data demands being put on the internet, so they may serve as prototypes for data center interconnects in widespread use years from now. My two cents, HTH. - Mark

11 years, 5 months

"The search for the lost Cray supercomputer OS"

by lproven＠gmail.com

No doubt you will all pick many holes in this, but... Summary: Chris Fenton and Andras Tantos decided they wanted a model of the famed supercomputer for their desk. It turned out to be a more complicated project than expected. http://gigaom.com/2014/01/14/the-search-for-the-lost-cray-supercomputer-os/ -- Liam Proven ? Profile: http://lproven.livejournal.com/profile Email: lproven at cix.co.uk ? GMail/G+/Twitter/Flickr/Facebook: lproven MSN: lproven at hotmail.com ? Skype/AIM/Yahoo/LinkedIn: liamproven Tel: +44 20-8685-0498 ? Cell: +44 7939-087884

11 years, 5 months

windows ce

by kspt.tor＠gmail.com

On 17 January 2014 20:20, John Foust <jfoust at threedee.com> wrote: > At 11:26 AM 1/17/2014, Chuck Guzis wrote: >>On 01/17/2014 04:54 AM, Liam Proven wrote: >>>You cannot install this onto a PC. It is not a PC OS and it was not >>>available to the public. It *only* came in the ROM of certain >>>battery-powered pocket devices. >> >>Not entirely true! WinCE was extensively deployed on x86 thin clients. > > Like point-of-purchase systems, right? > > - John Some years ago I watched the in-flight movie system on a Lufthansa flight trying to reboot (the type with one video screen embedded in the chair in front of you). IIRC it took something between five and ten minutes to boot. -Tor

11 years, 5 months

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