test-drb August 2001

test-drb@ccmp.vtda.org

295 participants
726 discussions

by fmc＠reanimators.org

"Bill Sudbrink" <bills(a)adrenaline.com> wrote: > The University Of Maryland had something called ZMOB or > Z-MOB in the early 1980s, which (if memory serves) was > 256 4MHz Z80s, several Megs of bank-switched memory, etc. > I never got to actually play with it or even see it, > only heard about it. Frank McConnell may know more. IIRC the big deal about ZMOB was that there was a sort of circular ring shifter that was used for message passing between processors. If processsor x wanted to send a message to processor y, processor x would put its message into the currently accessible ring bucket and the bucket's contents would eventually get shifted around to where it was accessible to processor y. I don't think there was any pretense of ZMOB being "super", just "parallel", but that was sufficiently interesting for CS research. But I never worked on it, I think I saw it once (a bunch of boards in rack-mounted cages, in a rack with a door), and I can't remember where I learned about it. Maybe one of the courses I took, maybe a friend who I think did hack on it a bit. -Frank McConnell

22 years, 10 months

[jjc@mac.com: pdp11 stuff]

by jhfine＠idirect.com

>John Christie wrote: > On Wednesday, August 22, 2001, at 09:50 PM, Jerome Fine wrote: > > I don't know if you want to separate the media, but I can probably help > > you with the RL02 disks. If this is a commercial request (I presume it is > > not), then I could probably arrange to acquire an RK05 drive as well. > This is an academic request. I have 5 RL disks. I have been > informed that they are actually RL01K-DC (??). However, my > understanding is that they both can be read in the same drives. > In order to transfer the data (I am only interested in the text > files) we could just email it or I could set up an ftp account and you > could send it as a TAR archive. The total amount of data shouldn't be > bigger than a large attachment. > I really appreciate your offer. However, I am going to hold off on > accepting it in case someone comes along who really needs the media. > I am not on the PDP mailing list, but if you could update the > description to RL01 disks (5) and even mention that that there are about > 20 of the RK05 I would appreciate it. > Thanks > John Christie <jjc(a)mac.com> Jerome Fine replies: I was asked to replay the message Does anyone have both the RK05 drives and the RL01 drives (NOT RL02 after all)? Sincerely yours, Jerome Fine

22 years, 10 months

Tek 465 as a hobby scope?

by mcguire＠neurotica.com

On August 26, Dan Linder wrote: > I found a Tektronix 465 o-scope today for $50 - it's missing probes, and > the owner was going to look for the manual, but I'm wondering if this > would be a good scope for hobby purposes? > > The previous owner feels that it probably needs a good cleaning, like some > of the knobs. > > Any insights? The 465 is an *excellent* hobby scope. It was the top-of-the-line (or nearly so) when it was new, and was very pricey. The fact that they're affordable and accessible to hobbyists now, and most still have MANY years of good service life left in them, is a wonderful thing. And $50 is a good deal. I'd say go for it. I used a 475 for a long time, until a few months ago when I replaced it with a 2465A. -Dave -- Dave McGuire Laurel, MD

22 years, 10 months

Okay, not exactly within timeframe for classic, but...

by dittman＠dittman.net

> >does anyone know how to tell if an I-Opener is of the kind > >which can be hacked? Can one tell from the serial number of > >does the machine physically have to be opened? > > Most of my links are on another computer, but here is a site to get you > started. http://www.linux-hacker.net/ Plus, if you were to look through > the list archives there are probably some other links and info about a year > and a half ago. I was supposed to be getting one, but the company and > Circuit Shi** pulled a fast one on me, so I didn't. The only list member I > know of that actually managed to get one was John Wilson, and I think he > turned it into a PDP-11 (which was what I wanted to do). I bought one from Circuit City and one from CompUSA. The one from Circuit City was sent to my in-laws, and they use is as it was intended. The one >from CompUSA was the demo unit so it was very easy to hack. I turned it into a small Linux box. -- Eric Dittman dittman(a)dittman.net School Zones: Man's attempt to thwart natural selection.

22 years, 10 months

Fw: Access to an IBM mainframe was Re: CBM 8032 SK (& electronics)

by KenzieM＠sympatico.ca

At 07:40 pm 25/08/2001 +0100, you wrote: More or less what's happening with me now.... Except i don't have a mainframe to play with, or indeed the space to keep a mainframe in.... > Forwarding this from a newsletter I get > ---- > DEVELOPERS: WANT TO TAKE AN IBM MAINFRAME FOR A SPIN? > Does developing Linux software for a mainframe computer sound like fun? > For many Linux advocates, the answer is probably "yes." Do you have a > mainframe handy? Unless you're working for a large company, the answer > is probably "no," and that's worrying IBM. Big Blue is so concerned > that the PC maker has decided to do something about the mainframe > shortage. > > Most open source software is created on inexpensive desktop computer > systems, which isn't surprising, considering the fact that most open > source developers are volunteering their time and don't have scads of > cash for hardware purchases. Recognizing this point, and openly > inviting Linux development for its mainframe systems, IBM has created > the Linux Community Development System (LCDS). > > LCDS provides open source developers with free access to a S/390 > mainframe. The system features a 9672 G6 Model ZX7 processor with 32 GB > of main memory, 2.1 terabytes of auxiliary memory, and a hypervisor > operating system that transparently allocates to each Linux user a > virtual environment that appears to the Linux kernel as a separate > processor and 128 MB of main memory. For more information, visit the > LCDS homepage. > http://www-1.ibm.com/servers/eserver/zseries/os/linux/lcds/ > _______________________________________________ > oclug mailing list > oclug(a)lists.oclug.on.ca > http://www.oclug.on.ca/mailman/listinfo/oclug

22 years, 10 months

"test" posts

by acme_ent＠bellsouth.net

> From: ysgdhio <ysgdhio(a)yahoo.com> > To: acme_ent(a)bellsouth.net > Subject: Re: another test > Date: Saturday, August 25, 2001 2:02 AM > > Glen Goodwin writes: > > another test > > Is this *really* necessary?! It's pretty damn annoying. Well, my apologies to the group, but I must say that if my you found my grand total of *two* test posts to be "pretty damn annoying" you might want to chill OUT -- RELAX -- get a LIFE. The reason for the tests was simply that for the last week I have only been receiving about 1/3 of the messages posted to the list. I deduced this by the large number of "Re:" posts I received where I did NOT receive the original post. Also, the messages were not in date/time sequential order, and three posts I made during the last week were not received by me. I then posted the original "test" message, and when I didn't receive it, I subscribed using another (this) e-mail account and posted "another test" (which I DID receive). Perhaps everyone's on edge due to the high number of off-topic and inflammatory messages which have been posted lately, but, hey, can't you cut me a little slack while I resolve this problem? After all, it's not as if I called you an ASS or something ;>) Glen 0/0

22 years, 10 months

Free S-100 stuff, Washington DC area

by CLASSICCMP＠trailing-edge.com

Free S-100 mainframes, generally with power supplies and some random cards and in some cases drives. Located just inside the Washington DC beltway, you-pick-up-only, first-come-first-served: Cromemco System III. If you take this, you also get to take all my Persci 8" drives that fit inside the mainframe. Nice rack-mount box. Cromemco Z2D. 5.25" floppy drive, Z80 CPU, some memory, etc. Very sleek black rack mount box. Cromemco HDD disk memory system, sleek black case to match Z2D. Dynacomp desktop S-100 box with a bunch of cards. Email me (shoppa(a)trailing-edge.com) if interested. Tim.

22 years, 10 months

Free DEC Pro/Rainbow stuff, Washington DC area

by CLASSICCMP＠trailing-edge.com

Free stuff, just inside the Washington DC beltway. You-haul-away only; no shipping, first-come-first-served. I'm only rarely available during the week; this will probably all have to go by the end of this weekend: DEC Pro 380 w/monochrome monitor DEC LA75 (serial dot-matrix) printer with stand Many DEC Rainbow software kits of various sorts (some rebadged Microsoft stuff) A couple of DEC Pro software kits A cubic foot of DEC Professional technical-type docs As always, when you show up here, I'll try to make you take away some other extra stuff too :-). Please email me (shoppa(a)trailing-edge.com) if interested. Tim.

22 years, 10 months

Curricula ...

by mbbrutman＠magnaspeed.net

> > I don't know how a student with a four year degree can be called > > a professional programmer. It's only after 17 years of programming > > (with 10 years of professional experience) that I now consider > > myself armed and dangerous. I loved taking graduate classes as an > > older student - it was so easy to crush the competition because of > > the depth of experience and exposure that I had. ;-) > There is one (possibly unintentional) idea here that I disagree with. And > it's that learning starts when you go to university and stops when you > leave (the '4 year degree'). Tony - You are absolutely right, and thanks for giving me the benefit of the doubt and not jumping all over me on it. The part of my education that was "formal" showed me things that I would have never known to explore on my own. The "informal" part is where the experience was developed. Now that I'm older and wiser, I do a lot more of the exploring on my own. Oh, and BTW, I never properly thanked you for the information you shared on the lightpens - I learned a lot out of that discussion. Still haven't gone out to construct a crude one, but at least I have an idea of where to start. (And my soldering skills are going to have to improv significantly.) Mike

22 years, 10 months

Google wants your Usenet CDs

by jfoust＠threedee.com

>From http://groups.google.com/googlegroups/archive_hunt.html : Help Us Complete the Usenet Archive Google is attempting to compile the most complete archive possible of Usenet posts, and we need help doing it. We are looking for archives pre-dating 1995, in particular the "NetNews CD Series". These CDs were commercially available through Sterling Software and later through CD Publishing Corporation between early 1992 and 1995. The CDs were released separately and each CD covers approximately a two week time span. We've already located NetNews CDs #6 - #31, which cover March 92 through January 93. If you own NetNews CDs or if you know somebody who does, please contact us at groups-support(a)google.com. We will pay a finder's fee for any NetNews CD we do not own already. Thanks for helping us build the most authoritative Usenet archive online. Thanks, The Google Team

22 years, 10 months

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test-drb August 2001