test-drb

test-drb@ccmp.vtda.org

101090 discussions

Ready for another junk ^H^H^H^H er,ah, computer feast? (Central Florida)

by steven_j_robertson＠hotmail.com

> > Hi All, > > I just talked to Eric Smith and he's going to be visiting this area >(Orlando) around May 17 or 18. I thought it might be a good time for >another Junk Feast. Let me know if you're interested. > > Joe I can probably make it. I'll let you know when the date gets nearer. SteveRob _________________________________________________________________ Join the world’s largest e-mail service with MSN Hotmail. http://www.hotmail.com

24 years

GEM-OS

by jhking＠airmail.net

> > > Date: Thu, 4 Apr 2002 15:36:04 -0800 (PST) > From: Cameron Kaiser <spectre(a)stockholm.ptloma.edu> > Subject: Re: GEM OS was: CP/M and Imsai > > > I've asked this before, but how close is the Commodore GEOS to the Gem > > one ? The desktop at least is virtually identical. > > I don't think it is, myself. Berkeley Softworks supposedly modeled it on the > Macintosh. > > > Does it have an underlying > > system greatly different from TOS and AES(?) ? > > Not knowing much about the internals of TOS ... > In Geos the whole OS was coded in 6502 assembler. Couldn't make an 8bit gui work with slowpokes like C. GEM and TOS (as I understand) were partly host assembler (8088 or 68000) and part c. No commonality under the hood at all.

24 years

Questions regarding Tom Shoppa.

by Antonio.Carlini＠riverstonenet.com

>Are you saying the actual CD image was available as >opposed to the many files that are on the CD? Yes. Four images, one per CD. I don't know if they vanished during the site reorg or whether I just cannot find them right now. >satisfied it is OK. BUT, I also want to burn my own >CD in the same manner. ALSO using Windows 98 (Yeck). Burning under windows is probably not an issue - use something like CDR-Win to make an exact copy to an image file, and then burn that. >BUT, Can anyone help me? I want to copy that same file >to a CD-R or a CD-RW starting at sector 212,992 (just >like Tim Shoppa did) after I have written the files to the CD >under the ISO file structure. Of course, I want to be able >to do this under Windows 98!! Does anyone know if that is >even possible, let alone how it could be done? I don't know the specifics of RT-11s requirements for the CD. I expect that RT-11 sees it as though it were a hard disk of exactly that many blocks (well 4 times the number of CD blocks because of the 2048<->512 byte thing). Many (many) years ago when I used an LSI-11/23 under RT-11, we had a 40MB drive that emulated 4 RL02 drives (or some such). I don't recall if this was done in software or hardware - quite possibly it was a software driver that came with the disk. Why is 212992 magic? What do you do to make this CD visible as 7 (or whatever) disks under RT-11? Essentially your CD is a stream of N 2048 blocks and is presumably seen by RT-11 as such (at a sufficiently low level) and then given meaning by some software layer. A typical method for generating a layout with both ISO and "other stuff" in logically separate areas of the CD would be to start by generating a binary ISO-format file with just the ISO data in. The first 64 2048-byte blocks (or is it 32?) are ignored by the ISO9660 standard - they are deliberately not used. Now create an empty image file, the size of your CD. Overlay the ISO image file onto this. Now you slip the PDP-11 boot block in there and add whatever else you need at the end in whatever format you want. The ISO file structure will be unaffected (so long as you tack things on after its logical end). What you need to find out is RT-11s requirements in this area. Actually doing this under W98 may not be that easy. Typically, when I've done CDs that have both ISO9660 and ODS-2 on them, I've generated the image on OpenVMS and burned the image to CD using a PC. Antonio

24 years

Questions regarding Tom Shoppa.

by Antonio.Carlini＠riverstonenet.com

>Ok... I'll bite... what is that "peripheral"? Nukes or something? Not sure I remember this correctly but I have a feeling it was something like the Washington metro - where obviously "Washington" is a code name for some plausible east coast city that actually does have a metro, just in case my memory is failing again :-) Antonio

24 years

Amiga A2065 Ethernet cards

by pete＠dunnington.u-net.com

On Apr 11, 3:19, Gary Hildebrand wrote: > Happened to notice they are 10Base2 (BNC connector and AUI interface > (DB15). According to what little I've found on the web, there is an > adapter available that goes from the AUI DB15 to 10BaseT, so I can test > these out through a hub. > > Any comments? Well, assuming you really mean DA15 (not DB15 :-)) then, yes, all you need is a transceiver. The miniature type that fits straight onto the AUI connector is best, and usually cheap and easy to find. After that, it's just a question of having TCP/IP software. -- Pete Peter Turnbull Network Manager University of York

24 years

Questions regarding Tom Shoppa.

by mythtech＠mac.com

>>Tim is providing support >>for a $ 10 Billion system of some sort which likely uses VMS. >It's not exaggerated, from what I know of the 'peripheral' attached to >those computers, if anything that's a bit low. Ok... I'll bite... what is that "peripheral"? Nukes or something? -chris <http://www.mythtech.net>

24 years

Questions regarding Tom Shoppa.

by Antonio.Carlini＠riverstonenet.com

>Does anyone else have copies of the RSX-11 set of 2 CDs? At one point the RSX, TOPS and RT11 CDs were all available as binary images. I know I downloaded all of them and burned them to CD with no problems. (Well, maybe a slight issue with the RT11 one IIRC - I used W98 and whatever burning software I used was not too happy verifying it ... seemed usable though). Tim does not seem to have any problems with people downloading large amounts of data so rather than ask for a CD, just burn one. Antonio

24 years

Ultrix root password

by cdl＠proxima.ucsd.edu

> From: "Sean 'Captain Napalm' Conner" <spc(a)conman.org> > Subject: Re: Ultrix root password > To: classiccmp(a)classiccmp.org > Date: Thu, 11 Apr 2002 15:10:33 -0400 (EDT) > In-Reply-To: <Pine.BSF.4.33.0204111011480.68023-100000(a)spaz.catonic.net> from "Kris Kirby" at Apr 11, 2002 10:12:17 AM > > It was thus said that the Great Kris Kirby once stated: > > > > On Mon, 1 Apr 2002, ajp166 wrote: > > > Boot to non-timesharing then use ED (sorry no other choice usually) > > > to edit passwd file. set the Root user password to NULL (no characters). > > > boot to timeshare level and then log in as root with no password. > > > > For those of us "young'uns", would someone point me to a guide on "ED"? > > Isn't it like vi, only without being full screen, and without prompts? > > -spc (Or am I thinking of ex?) You are probably thinking of "ex". But "ed" is a proper subset of "ex". The classic answer to the question "point me to a guide" is $ man ed executed on any Unix or Unix-like system. If you don't have one of those running, you can try, with your favorite web browser, a Google search with the key words: unix man ed carl

24 years

Ultrix root password

by ajp166＠bellatlantic.net

From: Brian Roth <broth(a)heathers.stdio.com> >The MV's have Ultrix on them and boot fine BUT..... > > >Is there an easy way to bust the root password for Ultrix on the console? Yes. Boot to non-timesharing then use ED (sorry no other choice usually) to edit passwd file. set the Root user password to NULL (no characters). boot to timeshare level and then log in as root with no password. My ultrix manuals are burried or I'd give more detail. Allison

24 years

Info on Bill Godbout

by bobbeleh＠earthlink.net

Hi I'm new to this forum and I'm looking for info on contacting Bill Godbout. I worked for him and Mike Quinn back in the early/mid 70s, testing ICs in the back room of Quinn's. Any help would be appreciated. Thanks, Bobbe bobbeleh(a)earthlink.net ********************************************************************** We do not see things as they are, we see them as we are. **********************************************************************

24 years

Anyone Care About RT-11

by IVIE＠cc.usu.edu

> Even if you don't have any bugs to contribute, please comment > if you think a central location is a good idea so that everyone > who uses RT-11 can be aware of the current list of bugs. FWIW, I think a central bug listing is a good idea. Caveat on my opinion: I do not currently have any PDP-11s operational, although I have several that could, conceivably, be put into working condition on short order. I.e., I'm not currently running RT-11, although it's on my List of Things to Do. Roger Ivie ivie(a)cc.usu.edu

24 years

Very Old Texas Instruments IC's

by rigdonj＠cfl.rr.com

I found a TI data book dated 1971 and it doesn't even mention 12xx ICs. It appears that by 1971 TI had switched entirely to the 54/74xx series. I have a couple of even older TI books if I can find them. Joe > >Rick, > > SOMEWHERE I have an old TI IC catalog from around that time period. I'll try and find it and look them up. > > Joe > >At 06:44 AM 4/10/02 -0700, you wrote: >>Hello, >> >>I've come across some old TI IC's that I'm hoping someone out there can >>shed some light on. >> >>The date codes on the chips place them in late '67 to early '68. >>The part numbers are: >> >>SN1286 >>SN1287 >>SN1288 >> >>They are in 24-pin dual-inline plastic packages. The pin spacing 0.10 >>inch >>between pins, and 0.50 inch between the rows of pins. >> >>These three chips are on a board that is populated with SSI DTL & early >>TTL devices >>in the SN15xxx and SN58xx DTL families, and SN74xx (only SN7474) TTL >>devices. >>All of the SSI stuff has date codes ranging from 6742 (week 42 '67) to >>6804 >>(week 4 '68). >> >>Can anyone out there shed any light on these old devices? >> >>Yes...the board with these chips on them is from an old Singer/Friden >>calculator. >> >>Thanks, >>Rick Bensene >>The Old Calculator Web Museum >>http://www.geocities.com/oldcalculators >> >> >>

24 years

Getting Unix to run on a PDP-11/34

by hans＠Huebner.ORG

Hi, this weekend, we have been unsuccessful trying to get one of the ancient Unix versions (V6 or V7) to run on a PDP-11/34. The plan is to have an ancient PDP-11 on the VCFe in Munich running a proper version of Unix. THe machine has two RK05 drives, RX01 floppy and a TS03 tape drive. Our first problem is that we have been unable to find or make up a TS03 bootstrap. We considered using RT-11 to transfer disk images to RK05 drives, but we could not figure out how to get the image straight to the disk without having to store it in an intermediate file and writing a RT-11 program to access the disk sector-by-sector. We have a lot of hardware at our disposal, so we took a Emulex TC12 Pertec tape controller from a 11/44 (the 11/44 would also be nice as demonstration CPU, but it has a SMD disk controller for which we have no drives). Not having any documentation on the TC12 we just put it into the 11/34, but it did not work (bus error LED lit). So we're kind of stuck. Any ideas, hints or pointers (especially to a TC12 print set) would be greatly appreciated. Thanks, Hans -- finger hans(a)huebner.org for details

24 years

Does Anyone Have A

by acme_ent＠bellsouth.net

> From: Sellam Ismail <foo(a)siconic.com> > On Tue, 9 Apr 2002, Jonathan Engdahl wrote: > > > Haus des Lehrers. They did, after all, have Pong. Later, I did find the > > http://www.blinkenlights.com/ website, and laughed at myself when I found > > what the other Simon was. > > > > I've already received two emails from people that want this classic > > computing treasure, even in pieces. > > Are you talking about the 1950s Simon "electronic brain"? > > Some people are silly and lazy. If they would do the research, they would > find that the Simon was a construction project. So it's not like you're > going to find a mass produced, commercially sold variant. You're only > likely, if you're incredibly lucky, to find some hobbyists rats nest of > wires and relays. > > Sellam Ismail Vintage Computer Festival Sellam, why do you insist on labeling people with terms such as "silly" and "lazy?" Have you considering taking the easy way and suggesting that they might be mistaken? Also, do you still want this Amstrad 3" drive or shall I repost it to the list? It's been several months . . . Glen 0/0

24 years

Questions regarding Tom Shoppa.

by csmith＠amdocs.com

> -----Original Message----- > From: William R. Buckley [mailto:hhacker@ev1.net] > Over the past year, I have sent several messages to Tom Shoppa > requesting a set of CD ROMs containing the offerings of his at > the web site, metalab.unc.edu, yet to date I have not received > the requested material. I have also sent email to Tom directly > but, he has not answered. Is there some extenuating circumstance > of which others on this list are more familiar than I? FWIW, I've tried to contact Tim a couple times too, and not gotten a response. I hope he's ok. :/ Chris Christopher Smith, Perl Developer Amdocs - Champaign, IL /usr/bin/perl -e ' print((~"\x95\xc4\xe3"^"Just Another Perl Hacker.")."\x08!\n"); '

24 years

TTL computing

by Lee.Davison＠merlincommunications.com

The point is, I can't see a real difference between a ROM chip and a decoder + gates. Electronically they're much the same thing. Physically, to change the program, I have to use a soldering iron. It is _not_ clear to me why one is called firmware and the other called hardware. How about .. Hardware is the physical part(s) of a design that can be seen, touched, crushed, thrown, weighed etc. Firmware is the idea statically implemented in that hardware. Lee. ---------------------------------------------------------------------------- ---- This email is intended only for the above named addressee(s). The information contained in this email may contain information which is confidential. The views expressed in this email are personal to the sender and do not in any way reflect the views of the company. If you have received this email and you are not a named addressee please delete it from your system and contact Merlin Communications International IT Department on +44 20 7344 5888. ________________________________________________________________________ This e-mail has been scanned for all viruses by Star Internet. The service is powered by MessageLabs. For more information on a proactive anti-virus service working around the clock, around the globe, visit: http://www.star.net.uk ________________________________________________________________________

24 years

HP 88780 / 7980XC Interface Question

by fmc＠reanimators.org

"Douglas H. Quebbeman" <dquebbeman(a)acm.org> wrote: > I see lots of references to these drives... > > Do they possess multiple interfaces, or do you get > one that has the interface you need? You get one that has the interface you need, but I think you can swap interfaces; e.g. I've swapped a single-ended SCSI interface board into one that I got with a differential SCSI interface. Note that the interface board is screwed to the back plate which has the cutout for the connector, so if you get a different interface board you may also want to get the appropriate back plate for it. > I've seen one with an HP-GPIB interface connector > on the back, and was wondering if I pull that rear > cover off, will I find a set of Pertect interface > connectors hiding there? Or is that simply a different > model? I haven't looked inside one with a Pertec interface, but the SCSI interfaces expect to plug into a flat cable that is in the base of the drive and I expect the Pertec interface would too. There's also a four-slot card cage in the right side of the drive, accessible by removing a top cover. The boards installed in this cage make a difference too. Later drives have only three cards installed (the read/write/PLL boards and formatter board were replaced by a single board). 7980A and 7980XC are HP-IB-interface drives sold into the HP minicomputer markets. The XC suffix means the drive was sold with a variant board that supports data compression (meaning you can write tapes that are only readable by other 7980XCs). 7980S is the same drive with a SCSI (single-ended I think) interface, sold into the HP minicomputer market. At one point HP offered a field upgrade kit to change your HP-IB drive to a SCSI drive. There is also a variant board that supports 800 BPI (in addition to 1600 and 6250). I believe that 800 BPI and XC compression are mutually exclusive (you can't have one drive that does both). 7979A is an HP-IB-interface flavor of the drive that supports neither 6250 BPI nor data compression. I'm not sure but this may simply be a different-variant board as well. 88780 are drives sold outside the HP minicomputer markets, including OEMs like IBM, Sun, and Tandem. Of course the OEMs came up with their own model numbers. I have some notes that say data compression was option 400 and 800 BPI was option 800, but I'm not sure whether this applied to a 7980 or 88780. -Frank McConnell

24 years

TTL computing

by chd_1＠nktelco.net

Christopher Smith wrote: >--------------------------------------------------- >> -----Original Message----- >> From: Chuck Dickman > >> Why not loops of wirewrap wire? At 30AWG, they don't take much to blow >> and it would not be too hard to see. Plus 3/4 inch of wire is >> cheap and >> replaceable. > >It would be a lot more trouble to get the wire in and out. :) Otherwise >it's an interesting idea. I was thinking more along the lines of no fuse housing at all. Just wire between some form of binding pin. >Chris -chuck

24 years

Anyone know...

by csmith＠amdocs.com

> -----Original Message----- > From: Ethan Dicks [mailto:erd_6502@yahoo.com] > > Um -- dd? > dd is great for moving around raw HD partitions (providing the source > and dest are the same size), but I think you are looking for something > like mkisofs. I've used it under Solaris. That depends on what he meant by "make ISO images of cd roms." I read that to mean "I want to make a raw copy of the disk, and I'm just saying ISO out of habit." You obviously read it to mean "I want to make an ISO image out of some files I've got so that I can burn it onto a CD." So which was it? Chris Christopher Smith, Perl Developer Amdocs - Champaign, IL /usr/bin/perl -e ' print((~"\x95\xc4\xe3"^"Just Another Perl Hacker.")."\x08!\n"); '

24 years

Anyone know...

by dquebbeman＠acm.org

> > -----Original Message----- > > From: Sridhar the POWERful [mailto:vance@ikickass.org] > > > ...how to make ISO images of CD-ROM's under Linux? > > Um -- dd? No; assuming you've got files on a Linux filesystem, you use mkisofs to create the ISO9660 image file (with Rockbridge extensions). Then you use cdrecord to burn the image onto the CD. To capture an existing CD-ROM into an image file, most likely, Chris is correct, but I haven't gone that direction yet. -dq -Douglas Hurst Quebbeman (DougQ at ixnayamspayIgLou.com) [Call me "Doug"] Surgically excise the pig-latin from my e-mail address in order to reply "The large print giveth, and the small print taketh away." -Tom Waits

24 years

TTL computing

by IVIE＠cc.usu.edu

Doc said: > On Wed, 10 Apr 2002, Roger Ivie wrote: > > > Actually, there are a grundle of ways to do this. Here's a scheme that > > doesn't require a counter, but requires wider microcode: > > New term alert!!! > > Could you please, for the uninitiated, quantify "a grundle"? 'Bout half an ANSI sh*tload which, of course, is smaller than the Imperial sh*tload. It was, obviously, an ANSI sh*tload to which Slim Pickins was referring in Blazing Saddles when he said "someone's gonna have to get a sh*tload of dimes". Roger Ivie ivie(a)cc.usu.edu

24 years

should I take RM03's ?

by GOOI＠oce.nl

Hi all. I need some advise. In 3 weeks time Edward and I drive to Italy (some 1100 km) to pick up several PDP-11/70 parts. I have the oppertunity to drag 2 RM03 massbus drives and some packs back home. Now I know already that these drives weigh about 200 kilo, have a disk capacity of 67 Mb and are really power-hungry: at 240 V/50 Hz. stand-by is 3.5 A. running they consume 11.5 A. and rush-in current is 22 A. My experience is that DEC tend to give high numbers for the power consumption, but do these drives eat that much current? Are they worth preserving? Or should I leave them where they are? Next to the 11/70 is looks great (IMHO) but I would love to hear some opinions from other collectors. - Henk.

24 years

HP 88780 / 7980XC Interface Question

by dquebbeman＠acm.org

I see lots of references to these drives... Do they possess multiple interfaces, or do you get one that has the interface you need? I've seen one with an HP-GPIB interface connector on the back, and was wondering if I pull that rear cover off, will I find a set of Pertect interface connectors hiding there? Or is that simply a different model? Thanks, -dq -Douglas Hurst Quebbeman (DougQ at ixnayamspayIgLou.com) [Call me "Doug"] Surgically excise the pig-latin from my e-mail address in order to reply "The large print giveth, and the small print taketh away." -Tom Waits

24 years

Anyone know...

by csmith＠amdocs.com

> -----Original Message----- > From: Sridhar the POWERful [mailto:vance@ikickass.org] > ...how to make ISO images of CD-ROM's under Linux? Um -- dd? Chris Christopher Smith, Perl Developer Amdocs - Champaign, IL /usr/bin/perl -e ' print((~"\x95\xc4\xe3"^"Just Another Perl Hacker.")."\x08!\n"); '

24 years

TTL computing

by csmith＠amdocs.com

> -----Original Message----- > From: Chuck Dickman [mailto:chd_1@nktelco.net] > Why not loops of wirewrap wire? At 30AWG, they don't take much to blow > and it would not be too hard to see. Plus 3/4 inch of wire is > cheap and > replaceable. It would be a lot more trouble to get the wire in and out. :) Otherwise it's an interesting idea. Chris Christopher Smith, Perl Developer Amdocs - Champaign, IL /usr/bin/perl -e ' print((~"\x95\xc4\xe3"^"Just Another Perl Hacker.")."\x08!\n"); '

24 years

Jump to page:

2026

2025

2024

2023

2022

2021

2020

2019

2018

2017

2016

2015

2014

2013

2012

2011

2010

2009

2008

2007

2006

2005

2004

2003

2002

2001

2000

1999

1998

1997

test-drb