test-drb February 2013

test-drb@ccmp.vtda.org

185 participants
407 discussions

by ethan.dicks＠gmail.com

On Mon, Feb 25, 2013 at 1:19 PM, Zane H. Healy <healyzh at aracnet.com> wrote: > The talk about the Acorn and RISC OS reminds me that I've been interested in > one of these, primarily to run RISC OS. What is the recommended version, > price, and place to get a Raspberry Pi from? Recommended version is 2.0 Model B (that happens to have 512MB; the 1.0 "B" has 256MB but those shouldn't be in the dealer channels anymore). Everything shipping as new for months now is a 2.0 Model B (the "A" is only starting to ship in Europe, so doesn't come into play with US orders). Primary distributors (MCM Electronics or element14/Newark) charge $35 + S&H for it (and sales tax if you are in their state). Secondary distributors (Adafruit, etc) often charge $40 plus S&H and tax. > I assume I want a "2.0 Model B 512Mb"? I've found a seller on eBay with > this and they include a case for $57. Sellers on eBay are marking things up a bit because demand is still higher than supply. -ethan

11 years, 5 months

IBM etc. plotters

by rampaginggreenhulk＠yahoo.com

Maybe they're the next big thing I don't know. You'd sure get that impression looking at the eBay listings. I payed 5$ for my largish IBM 7374?. No carousel though. I've never actually run it, but it powers up and all, though reports an error after a bit ***Need docs***. I plan on machining/fabricating a carousel. You really don't need one someone pointed out, for circuit board work, or really anything, so long as you're willing to manually change pens.

11 years, 5 months

cctalk Digest, Vol 114, Issue 45

by seefriek＠gmail.com

Longshot...is it possible that the 8255A is really an 8355A (same w/ mask programmed ROM)? That could make the unknown chip an 8085A (among many other things).

11 years, 5 months

IBM etc. plotters

by rampaginggreenhulk＠yahoo.com

11 years, 5 months

Acorn Archimedes

by tom_a_sparks＠yahoo.com.au

>On 02/24/2013 09:19 PM, Chris Tofu wrote: >>>My offlist question to Tony was does he own an AA, and if not why not? >>For the rest of you Britishers,do you own one, and if not why not? Do >>you have a problem withit???I had an A310, A440, A540, A3000, A3010, A3020, A4000 and A5000 (plus a >SARPC) - they're capable machines, but for me just not nearly as much fun >as Acorn's earlier 8-bitters, and I decided that the cost of shipping them >across to the US was too much for the enjoyment I'd get out of them. The main reason I'd want one now is for the 'experience' of >the GUI, but I >could probably do that via an emulator without losing anything - I don't >normally care much for emulators in comparison to the real hardware, but >that changes a lot when the real hardware is just a VGA-ish screen, mouse, >keyboard and the OS loads quickly from ROM/hard disk. I do still have a Simtec Hydra multi-processor board set, so should >perhaps >get myself an RPC to put it in one day (it's quirky and "a bit different", >so still appeals) and I kept my ARM copro for the BBC micro along with a >couple of ARM copros on ISA cards, just in case I ever want to mess around >with ARM coding on some real hardware. I *might* still have one of the set-top cable TV boxes which runs RISC OS >under the covers - I can't remember if I kept one or not now (I had a vague >plan to run one as a remote graphics terminal, but never quite got the >tuits together :-) If you're going to buy one, I'd say go for an A540, then you can always run >RISCiX on it as well as RISC OS. >cheers Jules I looked into buying a Acorn Archimedes/RISCPC system the cost kill that idea to get my riscOS fix I decided to get a RaspberryPi and buy the??RISC OS Pi SD card from RISC OS Open[1] [1] https://www.riscosopen.org/content/ --- 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

Shipping cost USA >> Europe , heavy item ??

by tommie＠fox.se

The cheapest way to ship from the US to Europe is using ocean freight but it will take longer than air freight. Shipping one pallet of computer goods, door-to-door from Reno, Nevada, USA to Stockholm, Sweden: Number of Items: 1 Length: 48 in Width: 40 in Height: 30 in Weight: 130 lbs Packaging: Crates Commodity: Computer Class: 85 The cheapest ocean freight rate I got on the above shipment was from http://www.macrotransport.com/ but there are sites where you fill out a form and will receive quotes from several shipping agents. >FROM RENO, NV 89502 TO STOCKHOLM, SW INLAND RATE: $185 OCEAN RATE: $240 HANDLING/DOCS: $65 TOTAL: $490 Tommie Mademark My Data General blog http://www.foxdata.com/blog/

11 years, 5 months

Fw: [N8VEM-S2I:128] Version 0.3C Firmware

by lynchaj＠yahoo.com

Hi Quick update on the S2I SASI/SCSI-1 to IDE/SD bridge board.? A great deal of progress recently.? Still making adjustments to the next generation S2I prototype board.? Will be converting from EEPROM to Flash to enable 20 MHz operation.? Still looking for additional testing for compatibility.? Will post when available. ? Thanks and have a nice day! Andrew Lynch --- On Sun, 2/24/13, Wayne Warthen <wwarthen at gmail.com> wrote: From: Wayne Warthen <wwarthen at gmail.com> Subject: [N8VEM-S2I:128] Version 0.3C Firmware To: n8vem-s2i at googlegroups.com Date: Sunday, February 24, 2013, 10:49 PM I have posted an updated firmware archive on the Wiki. ?This update includes: Debug and non-debug variations. ?Non-debug goes much faster, but does not dump any diagnostics on serial port. Support for FORMAT UNIT and VERIFY commands. Improved performance in PPI IDE interface driver. Support for multiple LUNs I am generally finding that the non-debug version is running about the same speed as a real ST125N hard disk when using a 12MHz CPU clock on the SCSI2IDE. ?Given a fast enough ROM chip, 20MHz operation works and achieves much better performance than a real ST125N. If anyone is getting close to testing, let us know! Thanks, Wayne -- You received this message because you are subscribed to the Google Groups "N8VEM-S2I" group. To unsubscribe from this group and stop receiving emails from it, send an email to n8vem-s2i+unsubscribe at googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out. ? ?

11 years, 5 months

Strobe plotter documentation or information?

by Carl.Claunch＠gartner.com

Hi I was recently given a Strobe 100 plotter, with an S-100 bus interface card, but no information at all about the protocols or commands or other details needed to connect with and use it. I have searched the usual places and cannot find any manuals or details. Does anyone have a manual for the 100 (or the similar models 200 or 260), or even remember enough to help me get this working. My requirements for it are very simple, pen R, L, F and B, plus pen up and pen down are all I need to command it to do, always in single unit steps. I am going to interface this to my 1130 replica as a replacement 1627 plotter (small Calcomp device rebadged by IBM for 1620 and 1130 computers). The 1130 only needed those few commands I listed above from its plotter. Carl ________________________________ This e-mail message, including any attachments, is for the sole use of the person to whom it has been sent, and may contain information that is confidential or legally protected. If you are not the intended recipient or have received this message in error, you are not authorized to copy, distribute, or otherwise use this message or its attachments. Please notify the sender immediately by return e-mail and permanently delete this message and any attachments. Gartner makes no warranty that this e-mail is error or virus free.

11 years, 5 months

Vector Graphic MZB-5025

by wmaddox＠pacbell.net

I recently bought a Vector Graphic MZB-5025 and its matching display and keyboard from a seller on eBay: http://www.ebay.com/itm/Vector-Graphics-MZB-5025-Computer-Z-80-CPU-64K-RAM-… http://www.ebay.com/itm/Vector-Graphics-MT-Terminal-Mindless-Terminal-and-K… The keyboard and display are packaged like a terminal, with styling nearly identical to the SOROC IQ-120, but the video generation is actually performed on an S-100 card in the main chassis. The seller did not pack the terminal properly at all, and the fragile structural foam enclosure was shattered in transit: http://www.flickr.com/photos/20002766 at N03/sets/72157632849299607/ I thought I was buying a nicely packaged and complete S-100 system that would need only electronic repairs at most, but instead ended up this mess. I imagine that the case could be restored with some fiberglass cloth, resin, and body filler, but I'm not up for it myself. If anyone on the list as a particular affinity for Vector Graphic gear and would undertake such a restoration, please let me know. I could probably be talked into turning loose of the entire system for next to nothing. --Bill

11 years, 5 months

russian Elektronika E60 PDP11 Clone, tape Drive CM5300.01..

by holm＠freibergnet.de

Hi all, I'm trying to ask here, since searching the russian internet and asking russians not helped me at all. I do have an craddle with something of an 11/03 clone and a RX01/02 double disk drive. The computer is an Elektronika E60 and looks like this: http://commons.wikimedia.org/wiki/File:E60M.JPG?uselang=ru This is the CPU card (my own picture): http://www.tiffe.de/Robotron/E60/E60-01.jpg the pink chips at to are dynamix 4kx1 RAM like the Intel 2107 the CPU itself is on the right side, a RALU, the Control Unit and 3 Microcode ROMS. That all on a Quad size board, but altough it is a QBUS nothing fits to a real DEC Machine since all Dimensions are metric, including the connectors. I have this beast running, with FODOS which is in fact RT11 and some RT11v4.x andRT11V5. Variants. Now comes my Problem: http://www.tiffe.de/Robotron/E60/I17.jpg This is a tape controller for drives like this: http://www.tis.kz/cm53001.php (russian site) at this site there is an other controller connected, a more modern one with an 8080 CPU and two 8255s on it. As you can see the cable to the drive is directly soldered to the board. All kind of russian Sources are listing my Controller Board MC2702 or I17 (with a cyrillic letter 'i') as one of two possibilities to connect the CM5300.01 drive to this computer, the other possibility is is an entire craddle full of simple TTL chips that must be connected to the E60. My I17 or MC2707 controller has four AM2901 compatible chips (K1804VS1) and a AM2910 (K1804VU4), some microcode ROMS etc. The two 40 pole connectors are electrically connected in parallel, maybe to connect two drives. There is a similar controller to mine: http://andy.sumy.ua/old_computers/world_museum/dvk/DVK_Type.jpg with a single 50 pin connector for the drives and the same AM29x series chips on it. For this controller the schematics are exiting..what doesn't help me that much, since because that is a microprogrammed CPU all functions of the interface, what is using different ICs, are depending on the microprogramm. Ther are single 7474 Flipflops where D is connected to the drive connector for example, I'll never find out what kind of input this may be w/o some dokumentation. At least the ROMs are socketed but to find out what happens I had to find out the complete schematic and then dissassembling Microcode... :-| The russians are listing that controller as standard, but no one knew something about it, there is no documentation available anid no one in russia seems to have such a beast. (two german friends of mine have two other boards but waiting if I can come up knowing how to use them..) The controller is listening on standard addresses on the bus (don't ask me for now, it's a while since I've checked this) and it seems to react to a reset command, seems to be alive... Please guys, I' looking fo any documentation about this thing or at least for the pinout of the cable to connect it to an CM5300.01 (bulgarian) 9 Track drive. (Should have 3 connectors at the other end so far as I know). I've searching for over a year now, hope someone from one of the other countries behind the iron curtain before is listening here and can help.. Please help! Kind Regards, Holm -- Technik Service u. Handel Tiffe, www.tsht.de, Holm Tiffe, Freiberger Stra?e 42, 09600 Obersch?na, USt-Id: DE253710583 www.tsht.de, info at tsht.de, Fax +49 3731 74200, Mobil: 0172 8790 741

11 years, 5 months

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test-drb February 2013