test-drb January 2017

test-drb@ccmp.vtda.org

198 participants
283 discussions

by jnc＠mercury.lcs.mit.edu

Hi, I don't know if this is of any use/interest at all, but I have retrieved an old/early copy of RT-11 Basic (V01-05 18-JUL-73, DEC-11-LBACA-A-LA1) modified to run under V6 Unix, if anyone has any use for such a thing. I also have a DEC MACRO-11 which runs under V6 Unix, which generates .rel files; there is a 'bind' (written in BCPL) which is a linker which reads .rel files. (There is a BCPL compiler, written in BCPL, to compile it.) Then there are two command 'relld' and 'ldrel' to convert back and forth from .rel to a.out. Noel

7 years, 3 months

SONY NWS-1250 PSU

by plamenspam＠afterpeople.com

I recently obtained Sony portable model - NWS-1250 from Japan. There is a bottom label "AC 100V", however the PSU has 100-120V and 220-240V label. The exact PSU model is Sony 1-413-548-11. Is it safe to plug it in 220V AC or to wait the arrival of step-down transformer ? The other problem is that the disk has been wiped. Does anyone have NEWS-OS CISC version media ? Best regards, Plamen

7 years, 3 months

What's the rarest or most unusual computer-related item do you own?

by COURYHOUSE＠aol.com

Doug! We would like a scan of your dad's certificate! We have an ongoing collection on this computer at SMECC 1955 Honeywell computer business was originated from the Datamatic Corporation, founded in Newton MA, as a joint-venture by Raytheon and Honeywell, to produce large-scale computer systems. Raytheon sells its 40% interest to Honeywell in 1957.. 1957 Installation of the first Datamatic D-1000 to Blue Cross/Blue Shield of Michigan. Honeywell Datamatic 1000 uses 3 inch wide tape we have a 3 inch very very heavy reel and the 30 something track tape drive head.... could this someday be the start of the ultimate DIY tape drive build and tape recover? see more on this computer here... and we have modules for this tube computer we need to photo and more stuff to scan and add. http://www.smecc.org/honeywell_datamatic_1000.htm In a message dated 1/29/2017 1:27:26 A.M. US Mountain Standard Time, billdegnan at gmail.com writes: On Jan 28, 2017 8:51 PM, "william degnan" <billdegnan at gmail.com> wrote: > > > On Jan 28, 2017 8:40 PM, "Chuck Guzis" <cclist at sydex.com> wrote: > > > > On 01/28/2017 05:12 PM, Douglas Taylor wrote: > > > I have a certificate that my father was given in 1957 for training on > > > a Honeywell Datamatic 1000 computer. > > > > > > Here is a summary of this 'advance' in computer technology from the > > > ACM: > > > > > > The DATAmatic 1000 (D-1000) is a high-capacity electronic > > > data-processing system designed specifically for application to the > > > increasingly complex problems and procedures of present-day > > > business. The system incorporates significant new systems techniques, > > > as well as several basically new component developments. One of the > > > outstanding features of the D-1000 is its ability to feed information > > > from magnetic tape into the central processor at a sustained rate of > > > 60,000 decimal-digits per second, and to deliver data after > > > processing back to magnetic tape at this same rate. The operational > > > speed of the central processor maintains full compatibility with the > > > high speed of information transfer. Consequently, the difficulties > > > caused by programs which are either tape limited or processing-time > > > limited do not arise in the majority of commercial applications of > > > this system. > > > > Doug, you can probably re-live part of your dad's experience. There are > > some Datamatic 1000 manuals on bitsavers: > > > > http://bitsavers.informatik.uni-stuttgart.de/pdf/honeywell/datamatic_1000/ > > > > Big, wide tape reels. > > > > --Chuck > > > > I am pretty sure I have the first print of that manual, but I thought Datamatic was a pre-Burroughs machine not Honeywell...I am not home to check, if you'd like me to I can Monday. That's the base 10 system, right? I also have some orig decimal counter tubes IIRC too. I suppose that all qualifies as pretty rare. Or I am confusing with a different, similarly - named system. > Bill Yup I must be mistaken. Nevermind I'll check when I get back to my office B

7 years, 3 months

ps2 memory - with weird square silver IBM Circuit packaged memory on the ...

by COURYHOUSE＠aol.com

Thanks Guy! Mystery solved! I will put this note in with the memory stick.. Ed# _www.smecc.org_ (http://www.smecc.org) In a message dated 1/28/2017 6:00:46 P.M. US Mountain Standard Time, ggs at shiresoft.com writes: At one time IBM was the largest manufacturer of memory and consumed *all* of it internally (e.g. for IBM products). At the time all of IBM?s ICs were in the ?aluminum? cans unless they needed more exotic cooling. In the PS/2 days, we ended up using some IBM produced memory because we could get a better internal transfer price than buying out in the market because the various IBM fabs had a bit of excess capacity and wanted it used. TTFN - Guy > On Jan 28, 2017, at 11:44 AM, COURYHOUSE at aol.com wrote: > > The talk of PS2 memory brought something back to me I have in a drawer > here... > > ps2 memory - with weird square silver IBM Circuit packaged memory on > the stick. > > What is the story on this? was IBM making it's own memory chips or just > repackaging them into > their silver square packaging? > > Now I will have to dig these things out. > > Thank Ed# _www.smecc.org_ (http://www.smecc.org) >

7 years, 3 months

ps2 memory - with weird square silver IBM Circuit packaged memory on the sti

by COURYHOUSE＠aol.com

The talk of PS2 memory brought something back to me I have in a drawer here... ps2 memory - with weird square silver IBM Circuit packaged memory on the stick. What is the story on this? was IBM making it's own memory chips or just repackaging them into their silver square packaging? Now I will have to dig these things out. Thank Ed# _www.smecc.org_ (http://www.smecc.org)

7 years, 3 months

Looking to read past EOT on DDS/DLT/LTO

by sieler＠allegro.com

Re: > From: Chuck Guzis <cclist at sydex.com> > I believe that ANSI refers to them as "partitions", IIRC, defined by a > special page in the MODE_SELECT command. Each partition has its own EOD. > > Using the MODE_SENSE code page 11h will turn up information as to a tape > bing multi-partitioned. As it happens, they (partitions vs. set marks) are different concepts. A DDS-1, -2, -3, -4 can be either a single unpartitioned tape *or* it can have precisely/exactly/only two partitions. (I didn't check newer DDS standards) Completely separately from any discussion of partitions: a tape basically consists of entries of type "Data" (user data) and "Separator Marks". The standards (e.g., ECMA-139 / ECMA-150 / ECMA-170 for DDS-1, ECMA-198 for DDS-2, ECMA-236 for DDS-3, and ECMA-288 for DDS-4) specify: "In this ECMA Standard, there are two types of Separator Marks which are referred to as Separator 1 and Separator 2. Some other standards, e.g. those which define an interface between a tape drive and a host computer, use the terms "file mark" and "set mark" to denote Separator Marks. It is recommended that Separator 1 be equated to file mark and Separator 2 be equated to set mark. ("file mark", of course, is also referred to as an EOF (End Of File)) I knew DDS-* drives were insanely complicated, but after reading parts of the standards, I now realize I was grossly underestimating just how insanely complicated they are! SDLT-1 supports "set mark" (and they're called that, not "Separator Mark 2" :), but not partitions. DLT-1 and Ultrium-1 support neither "set mark" (nor multiple kinds of separators) nor partitions. Stan (ECMA = European Computer Manufacturers Association) ISO/IEC 17462 = ECMA-288

7 years, 3 months

Sorcerer Software

by terry＠webweavers.co.nz

For anyone who has a newly acquired an Exidy Sorcerer, this page might be helpful. http://www.classic-computers.org.nz/blog/2017-01-23-software-for-real-sorce… Terry (Tez)

7 years, 3 months

crimp connectors that fit over wire wrap posts

by fritzm＠fritzm.org

Hi all, I?m working on an RK11-C, and need to repair a couple of components that are flown between backplane pins via crimp terminals that slip directly onto the wire wrap pins. I?m having trouble sourcing these connectors, probably because I don?t know the correct terms to search under. Anybody have a suggest? cheers, ?FritzM.

7 years, 3 months

old 5.25" floppies 1S/2D

by sales＠elecplus.com

I have a carton of old 1S/2D floppy diskettes here. I used them 28 years ago to make backups. I have no use for them, and I have no idea if they still work. They will need to be formatted. There are in boxes of 10. A few might be 2S/2D. FFS to a good home. Cindy Croxton Electronics Plus 1613 Water Street Kerrville, TX 78028

7 years, 3 months

XTIDE - boot menu callback via int 18h

by rdawson16＠hotmail.com

Thanks all for getting me going. I cheated at first with a real Maxtor 20 GB hard drive, and Alexadre's suggestion to FDISK with just a few cylinders, and that worked. Now, going to a CF card, same plan, no errors with FDISK, FORMAT C:/s, and I can see command.com is there if I boot from a floppy. I am able to read/write to the CF just fine, copy to it with /V and all OK. It will not boot from XTIDE, and I get this error. I read that some CF will not work. Can you recommend ones that do, and I will go get one. They one giving me trouble is: Sandisk Ultra II, I have had it for years in the junkbox. SDCFH-2048 is what XTIDE reports. Will a new, current CF fix the problem? Enlighten me on what boot menu callback means. Thanks, Randy

7 years, 3 months

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test-drb January 2017