test-drb October 2010

test-drb@ccmp.vtda.org

175 participants
274 discussions

by williams.dan＠gmail.com

Hi, I am moving to a smaller place and need to off-load some bits I am not going to have space for. An Octane (works but case in a bad shape) dual processor sse graphics it had 1gb of memory but some was bad, I think it's 768mb A Sun Blade 2000 Dual processors with 1gb memory and 18gb drive. 2 rack mount sparc machines with 2xmachines in each unit (Non sun) I think they are 500mhz and 1gb memory A Dell Itanium rack mount machine which won't run VMS. I Vax 4000/90 with a non working PSU A non working ex-millitary oscilloscope I need to check but a number of vt220 terminals with keyboards. I'm sure these will be popular: I have 8x big heavy drive DSSI drive units. They have not been powered up for a few years. They have scsi-->dssi convertor cards in them. They currently have 1GB and 2GB full height drive units in them. But they can take up to 9GB. I also have cabling which I have to sort out mainly for SUN and DEC. I have all the cabling for the dssi drives and a lot of monitor and other cables for Vaxstation 3100's. I am based in Central London and all of the machines are too heavy for me to ship. But let me know I'm sure we can work something out. These are available for free, but as at the moment the only machines I am keeping (or allowed to keep) are my RM machines I am interested in any cables software and monitors for 380Z, 480Z and early PC's I am going to be quite busy all over the weekend, so I may not get a chance to reply until monday. Dan

14 years, 1 month

8008 undocumented opcodes?

by jonnosan＠gmail.com

There are a couple of gaps in the documented opcodes for the 8008, namely: 0x22, 0x2a, 0x32,0x38,0x39,0x3a Is the behavior of the 8008 CPU when executing any of these bytes described anywhere?

14 years, 1 month

Specific maindec for the PDP-8/L ?

by jdr_use＠bluewin.ch

There are a lot of maindec ppt images on the net, but I fail to find 8/L specific ones. Or could I just use the 8/I maindec to check out the 8/l core stack, since they share the same stack ? Jos

14 years, 1 month

Oldest original proper computer (stored program etc)

by roger.holmes＠microspot.co.uk

> From: Charlie Carothers <csquared3 at tx.rr.com> > According to this: > http://www-03.ibm.com/ibm/history/exhibits/650/650_ch1.html the first > 650 was installed at a customer site in December, 1954. Indeed but when was the machine which is working first? The 'Mini' car was first sold in 1959 but some are older than others, indeed a car of the same name is still in production. I'm now after the oldest ten working stored program computers. I'd also be interested in the oldest working stored program computers with core memory. Thank you very much for your efforts. > I thought this was pretty interesting as well: > http://www-03.ibm.com/ibm/history/exhibits/mainframe/mainframe_FT1.html > It indicates the 701 was around in 1952. I'm not sure if you want to > limit your list to core memory or not. It appears that the 701's > internal memory consisted of a drum and a CRT. In any case, I need to > waste a lot more time exploring these pages. :-) > Later, > Charlie C. That is a great find. It even includes the first machine I ever wrote a program for, the IBM 7094 (in Fortran IV using the Purdue University Fast Fortran Translator). I too will have to crawl around the tree and hopefully learn more about the early IBM machines.

14 years, 1 month

Apple IIa

by robert.jarratt＠ntlworld.com

A friend has found that he has an Apple IIa with two Apple disk drives. I know nothing about Apple machines and would like to tell him if this is something relatively rare or still quite common. I know I asked a similar question a while ago for another friend but I have been unable to find the email in the archives so I don't know if I am asking about the same model again this time. Any information appreciated Thanks Rob

14 years, 1 month

lilith computer by wikipedia

by roger.holmes＠microspot.co.uk

> From: Simon Fryer <fryers at gmail.com> >>> Yes, and made the mistake of buying one. Couldn't believe it when it >>> actually arrived. I left an interesting review on Amazon. >> >> Do you happen to remember the title (or have a URL) for this? I wonder >> how the authors of that/those wikipedia articles feel about this? I know >> I'd be pretty annoyed if somedy did that with something I'd written. > > ISBN 10: 1155452186 > ISBN 13: 978-1155452180 > Title: ICL Mainframe Computers: Leo, English Electric Kdf8, Elliott > 803, Ict 1900, ICL 2900 Series, English Electric Kdf9, Ict 1301 > By: Books LLC > > http://www.amazon.co.uk/ICL-Mainframe-Computers-English-Electric/dp/1155452… Thank you very much for the warning. I would have been very annoyed if I bought it and discovered the only information on the 1301 was mainly what I had written myself on Wikipedia. I knew it had been copied onto other web site but at least they were free. Every now and again I do a search on ICT 1301 and the number of hits keeps expanding. A few real gems get added sometimes and a lot of stuff about Info & Comms Technology (hence ICT) which happens to have 1301 on the page but almost every time there is a new web site or two with yet another copy of my words. Why do they bother?

14 years, 1 month

XTIDE rom and board, Andrew?

by lynchaj＠yahoo.com

http://classiccmp.org/pipermail/cctalk/2010-October/292868.html XTIDE rom and board, Andrew? Randy Dawson rdawson16 at hotmail.com <mailto:cctalk%40classiccmp.org?Subject=Re%3A%20XTIDE%20rom%20and%20board%2C %20Andrew%3F&In-Reply-To=%3CBLU145-W26C1070A829339C22A9797BA5F0%40phx.gbl%3E > Sat Oct 23 01:44:37 CDT 2010 * Previous message: viper <http://classiccmp.org/pipermail/cctalk/2010-October/292861.html> 2150 drives * Messages sorted by: [ <http://classiccmp.org/pipermail/cctalk/2010-October/date.html#292868> date ] [ <http://classiccmp.org/pipermail/cctalk/2010-October/thread.html#292868> thread ] [ <http://classiccmp.org/pipermail/cctalk/2010-October/subject.html#292868> subject ] [ <http://classiccmp.org/pipermail/cctalk/2010-October/author.html#292868> author ] _____ Hi Gang, I just got a Compaq lugable, and it seems that the XT IDE board is the next thing to add. Anybody (Andrew Lynch?) have some blank boards and the rom, or a completed board, cable, drive they what to sell? Thanks, Randy -----REPLY----- Hi Randy! Thanks! Yes I have plenty of the XT-IDE PCBs left. They are $12 each plus $2 shipping in the US and $5 elsewhere. Please send a PayPal to LYNCHAJ at YAHOO.COM and I will send your XT-IDE PCB right away! Thanks and have a nice day! Andrew Lynch PS, I have a small number of S-100 PIC/RTC boards with Intel 8259 Programmable Interrupt Controller (or equivalent) and MM58167A RTC left over >from a recent project. If anyone wants some please contact me. Here is a description with video of the board in action: http://s100computers.com/My%20System%20Pages/PIC&RTC%20Board/My%20PIC%20Boar d.htm

14 years, 1 month

XTIDE rom and board, Andrew?

by rdawson16＠hotmail.com

Hi Gang, I just got a Compaq lugable, and it seems that the XT IDE board is the next thing to add. Anybody (Andrew Lynch?) have some blank boards and the rom, or a completed board, cable, drive they what to sell? Thanks, Randy

14 years, 1 month

viper 2150 drives

by pspan＠amerytel.net

Hello, Yes the tape should poition and the head seak track one. The 2150 has a puck that pinches when the slide locks the cartridge in place. Check to be sure that the puck is not soft with your finger. DO NOT APPLY ALCOHOL TO THE PUCK. The puck is driven by a belt from the drive motor. Hope this helps. Phil

14 years, 1 month

lilith computer by wikipedia

by rborsuk＠colourfull.com

http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=160495302854 Am I reading this right? A book based on wikipedia articles. Has anyone ever seen this? Rob Robert Borsuk rborsuk at colourfull.com Colourfull Creations http://www.colourfull.com

14 years, 1 month

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test-drb October 2010