test-drb January 2012

test-drb@ccmp.vtda.org

201 participants
274 discussions

by lproven＠gmail.com

This has garnered a lot of attention for me on Twitter and Facebook today. Hardware & case: http://chrisfenton.com/homebrew-cray-1a/ The hunt for software: http://chrisfenton.com/cray-1-digital-archeology/ Helping recover the OS: http://blog.archive.org/2011/09/03/hard-drive-archaeology-and-hackerspaces/ -- 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

12 years, 3 months

P112 kits for sale

by dgriffi＠cs.csubak.edu

I have seven P112 kits for sale. One will ship immediately. The other six will ship a week later, which is when I expect some memory chips to arrive. I'm taking orders first-come first-served, one per customer and ONLY from people who don't have a P112 already. The price is $160 shipped in the US. For outside the US, I expect the charge to be $10 more. These kits include everything you need to end up with a working P112 computer except disk drives, drive cables, power supply, and terminal. You also get a copy of the Walnut Creek CP/N CDROM and Rlee Peter's Archive. Email me with your intent to buy and I'll invoice the first seven. -- David Griffith dgriffi at cs.csubak.edu A: Because it fouls the order in which people normally read text. Q: Why is top-posting such a bad thing? A: Top-posting. Q: What is the most annoying thing in e-mail?

12 years, 3 months

diskpacks available

by quapla＠xs4all.nl

As I'm reducing my stash of DEC items I have the following diskpacks available : 8x RA60 @ Eur 5/piece 20x RL02 @ Eur 25/piece 3x RL02 @ Eur 5/piece 2x RK06 @ Eur 10/piece They are all in the Netherlands, pick-up is preferred. Ed -- Dit is een HTML vrije email / This is an HTML free email.

12 years, 3 months

cassette interface of Panasonic HHC

by raycretired＠charter.net

Hi Eric. I am looking for the printer out of the Rl-P1004A printer /computer combination. Do you have one that you would sell that is operational? Raymond C Phillips, LT USN Retired raycretired at charter.net 10104 West Argent Road, Pasco, WA 99301 509 646 3485. If interested please quote a price?

12 years, 3 months

Brazilian curiosity: Schematic of many brazilian

by tshoppa＠wmata.com

Al writes: > On 1/23/12 10:48 AM, Richard Atkinson wrote: >> I suggest using Megaupload.com >very funny. Just to prove that I am at least 10 years behind the times and therefore on-topic, I'm going to suggest Napster.

12 years, 3 months

FFS: Plessy/Cipher Tape docs

by silent700＠gmail.com

I have completed scanning the manuals for the Cipher 1/4" Tape drive and its QBUS interface, along with some Plessy software that came with it. They are posted here: http://chiclassiccomp.org/docs/index.php?dir=/computing These aren't in my hard copy preservation pile, so if anyone wants them (one 3-ring binder, about 3" thick) I will send them to you for shipping cost from 60070. Otherwise, to the recycle bin they go. -j

12 years, 3 months

Extended Deadline Call for paper Computing Frontier 2012

by computing.comp＠study.beds.ac.uk

### Apologies for cross-posting / multiple copies ### Call for Paper ACM conference Computing Frontier 2012 We are Glad to invite you to participate in the upcoming conference, IEEE computing Frontier 2012 The 9th ACM International Conference on Computing Frontiers May 15-17, 2012, Cagliari, Italy Sponsored by ACM SIGMICRO http://www.computingfrontiers.org The increasing complexity, performance, cost and energy efficiency needs of current and future applications require novel and innovative approaches for the design of computing systems. Boundaries between state of the art and revolutionary innovation constitute the computing frontiers that must be pushed forward to provide the support required for the advancement of science, engineering and information technology. The Computing Frontiers conference focuses on a wide spectrum of advanced technologies and radically new solutions relevant to the development of the whole spectrum of computer systems, from embedded to high-performance computing. Authors are invited to submit full papers to the main conference and Ph.D. students are invited to submit an extended abstract for a special Ph.D. forum and poster session We seek contributions on novel computing paradigms, computational models, application paradigms, computer architecture, development environments, compilers, or operating environments. Papers are solicited in, but not limited to, the following areas: ? Applications, programming and performance analysis of advanced architectures ? Next-generation high performance computing and systems ? Accelerators: many-core, GPU, custom, reconfigurable, embedded, and hybrid ? Defect- and variability-tolerant designs, dependable computing ? Power and energy efficiency: architectures, compilers and algorithms ? Virtualization and virtual machines ? Cloud-, internet-scale, service-oriented and smart infrastructure computing ? Compilers and operating systems: adaptive, run-time, and auto-tuning ? System management and security ? Impact of novel technology (e.g. NV memory, silicon photonics) on computing ? Computational neuroscience, neuromorphic and biologically-inspired architectures ? Computational aspects of intelligent systems and robotics ? Reconfigurable, autonomic, organic, and self-organizing computation and systems ? Interfaces and visualization for emerging applications and systems ? Novel frontiers in computational science and scientific data repositories ? Storing, managing, analysing, and searching large data sets (" big data ") ? Sensors and sensor networks. EXTENDED DEADLINES Paper Submission Deadline January 25, 2012 Ph.D. Forum Deadline February 15, 2012 Author Notification March 7, 2012

12 years, 3 months

PDP-8/I at the RICM

by michael.99.thompson＠gmail.com

We reformed the capacitors in all three power supplies in the PDP-8/I at the RICM and powered on the CPU to see if it would show any signs of life. It randomly lit some lights and would not react to the front panel switches. Looks like we have some debugging to do. The front panel power switch was corroded and burned. Any idea where we can get a replacement? Were can we get some Oshinos OL-1 bulbs to repair the front panel? Does anyone have diagnostics for the 8/I on DECtape? -- Michael Thompson

12 years, 3 months

Thinking of keyboard interfaces (HP9915)

by ard＠p850ug1.demon.co.uk

With this discussion of interfacing PC keybaords to vintage machines, I've been thinking about a project I've had in mind for some time now.. Firstly soem backgroud. The HP9915 is essentially an HP85 in a half-rack-width metal case. It could be run on a bench, or there was an HP mounting kit top put it in an instruemtn rack. Electornically, it's similar to the HP85. There is a buit-in tape drive. Ther is no printer. There is no built-in monitor, but there's BNC socket o nthe back that outputs TV-rate composite video (so getting a display is no problem). The keyboard controled IC is present, but obviously there's no built-in keyboard. There are some user-definable buttons on the front which are wired as the programamble function keys on an HP85. The keybaord row and commn lines are also buffered to TTL levels and broufht out on a DB25 socket on the rear of the machine. There was an HP keyboard that conencted here, this is basically just a matrix of switches wired to a DB25 plug. It's the same matrix as the HP85 keyboard, and that one is docuemtned in the service manual (although with at least one typo!). However, the keyboards are much harder to find than the machines. It's a 10*8 matrix with separate lines for the shift, control and capslock keys (these lines are simply grounded by the the appropraite key) My first question in designing this is : Is there ever a time when you press 2 keys simultaneously on an HP85 (other than shift or control along with another key). In onter words, is there ever a time when 2 locations of the keyboard matrix are closed at the same time? The reason I ask is that I can't think of one, and if such a case doesn't have to be considered there's a very simnple interface (a mutlipezer to sleect a scan line drivign the enable input of a demultiplexer to select an input line) that could be used. It'd be 2 or 3 cheap TTL ICs. I'd not want to connect a microcontroller directly to an external connector in any case (risk of damaging it, I notice that HP had much the same idea about the keyboard controller IC in the 9915, all the signals brought out on the connector are buffered). Thing is, it's a lot easier to replace a non-programmed TTL IC than having to program a repalcement microcontroller. So I'd either want to add buffers even if I was goign to try to use the microcontroller direcrly (which for reasons we've already discussed I think it 'pushign it'). The mux/demux ICs wouldn't need any more buffering IMHO, they could be simply wired to the connector. Of course if I do need to be able to have multiple 'keys pressed' at the same time, then I would haev to use the crosspoint switch or dual port RAM solutions we've already discussed. -tony

12 years, 3 months

PS/2 Keyboard adapter for TRS-80?

by alhartman＠yahoo.com

Does anyone on the list know if there is an adapter for TRS-80s (Model I/III/IV) to use PS/2 Keyboards? Cloud-9 makes one for the Color Computer, but the keyboard matrix between the two families are slightly different. My friend has a Model IV with a bad keyboard (the thin film ribbon is damaged) and replacement keyboards don't come up on eBay all that often. Thanks! Al Hartman

12 years, 3 months

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test-drb January 2012