test-drb October 2006

test-drb@ccmp.vtda.org

217 participants
352 discussions

by staylor＠mrynet.com

Looking for documentation for the Dilog DU-686 Unibus ESDI controller. Anyone have scanned references for it, or possibly just able to forward me jumper and on-board configuration connection and set-up info? TIA, -scott staylor at smedley dot mrynet dot com

17 years, 9 months

cctech Digest, Vol 38, Issue 25

by Watzman＠neo.rr.com

Re: "I just built a new PC, I didn't even think about ports. I personally have very little use for Parallel ports, and am more interested in Serial ports. I didn't even think about it not having a Serial port until I was finishing putting the system together. At least it does have a header for a serial port on the Motherboard, I'll just have to find a port to connect to it (as that didn't come with the board). Oh, and the board does have a Parallel port." Let me guess: Asus P5B? I chose a Gigabyte GA-965P-DS3 instead of the P5B primarily for just that reason (the boards themselves are nearly identical). The P5B uses one of the two "standard" cables. Look on alt.comp.periphs.mainboard.asus about 60 days ago and you will find a discussion of this, along with the specs for the cable (there are two "standards" for this cable, different and incompatible, so you need to get the right one). I can't believe Asus' stupidity in not putting the DB-9 on the I/O shield OR at least in not including the cable to the header.

17 years, 9 months

SDS/XDS-940 (900 series)

by kahrs＠caip.rutgers.edu

I admit, I cut my teeth on that machine and so I continue to ask around for remaining tidbits. My friends at Tymshare don't have bits apparently and I wasn't around when the 940s went out the back door. Al K. has my copy of the monitor (kernel) listing; that could be OCR'ed but what about the executive and all the other stuff? But the real question is: What does MUL =12525253B do?

17 years, 9 months

8" disk archive

by aek＠bitsavers.org

> If anyone has any comments, please speak up. If the contents can be identified, consider some form of checksum per file. Eventually, as multiple copies of the same discs are found from different sources you can verify file integrity. If they are original distrib discs, checksums of the entire volume can be used for disc integrity (and for simple checks for viruses on newer media)

17 years, 9 months

Serial devices, analyzers, etc (was Re: PDT-11/150 down)

by ethan.dicks＠gmail.com

On 10/18/06, Tothwolf <tothwolf at concentric.net> wrote: > I've never completely understood Black Box's business model. Some of the > adapters and cables they sell at a premium price are simply OEM'd products > with their own sticker/logo stuck on them. Did they offer some sort of > guarantee beyond what the manufacturer would have offered? If I understand their business model, they charged a premium, but what the customer gained was a single place to go (one catalog, one vendor to send POs to, etc), and some "big name" reassurance. In my experience, large companies deal with small companies poorly or not at all. If a small company comes up with a nice comms-related widget, they can try to sell it themselves with potentially mixed success, or sell quantities in black enclosures through Black Box and get instant exposure when the next catalog comes out. > I actually picked up an older but practically new serial analyzer on eBay > this last month for about $10. Its a Datacom Technologies DataTool 5500, > which is both an analyzer and a breakout box built into one unit. (Datacom > Technologies either became Tempo or got bought up by them, I can't > remember now.) I believe it only works up to 38400 baud or so, but it will > work great for most stuff that I work with. Wish I'd had it back in the > mid 90s though ;) I'm not familiar with that one. We had several analyzers (HP) and BERT boxes (bit error-rate tester?) when I worked at Software Results making sync comms hardware - fortunately I got to take my pick when the doors closed. I still have a bunch of that kit, and it's still useful since most of the gear does async as well as sync. If your analyzer only goes to 38Kbps, it's probably async only. Sync stuff I've worked with, tended to go up to 64Kbps or even 128Kbps (if it wasn't designed for T1-like connections). -ethan

17 years, 9 months

8" disk archive

by aliensrcooluk＠yahoo.co.uk

--- Kelly Leavitt <kelly at catcorner.org> wrote: > I'm actually starting the archiving of the more > than 1,500 8" disks that I have. Here are my > intended methods. If anyone has any comments, plea se > speak up. > The ultimate goal is an online searchable database > of these disks. > > 1) number each diskette sequentially with date > 2) taking a digital picture of the label > 3) Making a catweasel image of the contents > 4) Makine an ImageDisk image of the contents > 5) Storing the following information in a database > Diskette number > Any text from the label > System if known > OS used if known > Date of origin if known > Description of contents > if commercial software, the publisher/author > Photo of the label > Both disk images > > Kelly > Sounds like you'll be busy for a long time with archiving all those disks. Do you have any ideas what you will call the site with the archive? Perhaps you should announce a beta version (when it's up and running) for us to test? I generally cataloge my 3.5" disks (mostly Amiga, some PC and a handful of Atari ST disks) so I can find programs I want fairly quickly. Having approx. 600 disks I really need to do that, otherwise I'd be searching for hours :( Regards, Andrew B aliensrcooluk at yahoo.co.uk

17 years, 9 months

the last MIT ITS dec-20 (AI.MIT.EDU) is up for sale

by akb+lists.cctalk＠mirror.to

Chris Zach needs the space, so he's selling off his KS-10 (2020) http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&ih=011&item=320038687685 This machine was the last host to be named AI.MIT.EDU that ran ITS, and probably the last running DEC 10 or 20 at MIT (though that might have been MC). It comes with an ITS disk pack (and a drive). Might also have TOPS-20. Bidding is at $2k so far. --akb ps: AI, MC, and the hulk of a third 2020 which I think was BLT (Brave Little Toaster) were part of extensive hacker rescue efforts in the early 90s. They were schlepped out of MIT, sat at digex.net for a while until the VC-installed managers almost junked them, then CZ rescued them and has cared for them since. (I'm not sure what he's done with MC, BLT was mostly just the chassis and prolly got scrapped). In the auction photos, those small red tags next to the bar codes are the MIT "deactivated property" tags.

17 years, 9 months

Pinball machine available

by mouse＠Rodents.Montreal.QC.CA

Okay, it's not quite typical fodder for here, but it seems to me to be close enough to count as on-topic. Two friends of mine (okay, a friend and an acquaintance) have a pinball machine. But it's sitting in a barn and they'd like to get it in the hands of someone who'll use/appreciate it before winter hits (it's been there for a few months, but this would be its first winter). I've never seen it myself. Here's what I've been told: It's a "Data East Robocop" machine. No date apparent to the person who looked (whom I'd primed to look for a date). One piece of glass is shattered; from the description, it sounds to me like the backglass - the vertical glass with artwork in front of the scoring and status displays at the back of the machine. I'm told it's also functionally broken in some minor way, but the person who characterized the malfunction as "minor" is no pinball expert, so I have no idea how accurate the characterization is. I also have no better description of the malfunction. The machine is near Ottawa (Ontario, Canada). So, my questions: (1) is it worth anything in its current shape, or does the damage (and/or maltreatment) cut its value to the point where it's comparable to the cost of hauling it away? (2) anyone have more specific relevant questions that can be answered by someone not versed in pinball machines or electromech devices in general? Oh, and (3) anyone want it? :-) (I'd be tempted myself except I have no place to put it.) /~\ The ASCII der Mouse \ / Ribbon Campaign X Against HTML mouse at rodents.montreal.qc.ca / \ Email! 7D C8 61 52 5D E7 2D 39 4E F1 31 3E E8 B3 27 4B

17 years, 9 months

Oregon Software Pascal/2 (24 bit words)

by sdc695＠yahoo.com

woodelf <bfranchuk at jetnet.ab.ca> Wrote: > Simon Fryer wrote: > > Heya, > > What ever happened to 24 bit words, or is this an easy case? > That is 3 8 bit char's. :) > I was thinking of Dec's machines and rememberd other brands later. > While 24 bit computers were made, I can't think of any off hand. > > Simon Yes, 24 bit machines did exist. In fact before BSD, there was project Genie which made an SDS 930 into an SDS 940 (added paging hardware) and made up a timesharing system. It was the basis of the Tymshare corporation which was formed in the 60's. The machine had (IIRC) 64k of 24 bit words, paged in chunks of 4k words. The technique used what they called "relabeling registers" on the upper 8 bits of the memory address. The software had all sorts of things, including 'forks'. All before Unix (1969). Quite a system for its day. It was the competition to the GE 235 (Later 635) machines that started at Dartmouth. In the early 70's they had a whole bunch of machines in Cupertino under one roof. As for strings: They packed 3 to a word (usually). Trivia: 'BRS 131B' was the system call to crash the system. Just so you know. -- Tom Watson tsw at johana.com __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com

17 years, 9 months

machine emulation

by chrism3667＠yahoo.com

and was I tempted. O was I tempted. I could have been o so creative with the spelling of the first word in the subject line... I guess the question on many peep's mind is whether a utilization of virtual-8086 mode could be used to creative an emulation of something peecee-like (Tandy 2000 maybe?). I need to do some reading. Maybe should have done it first. I hope this isn't off-topic :O __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com

17 years, 9 months

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test-drb October 2006