test-drb September 2015

test-drb@ccmp.vtda.org

198 participants
312 discussions

IBM 026 - Decision Data 8010 card punch on Ebay in

by marc.verdiell＠gmail.com

Wow. Thanks for sharing. What a beautiful looking machine. I hope one of us gets it. Marc ===================================== Date: Mon, 21 Sep 2015 18:36:20 +0200 From: Mattis Lind <mattislind at gmail.com> Not really a 026 but maybe contemporary with the 029: http://www.ebay.de/itm/Historische-EDV-Lochkartenstanzer-Card-Punch-von-1973 -2000-Lochkarten-/371439456530?hash=item567b845112 Not mine.

8 years, 10 months

Sheet Metal Fabrication Options?

by brain＠jbrain.com

I was wondering if anyone has or knows anyone who has experience with low volume sheet metal enclosure fabrication? I am looking for a fabricator to build small (think game cartridge enclosure sizes) clamshell units (or similar). I thought before I start cold calling folks, I'd see if someone has already had some success. -- Jim Brain brain at jbrain.com www.jbrain.com

8 years, 10 months

DG S/130 front panel switches?

by jwest＠classiccmp.org

So does anyone have a trashed/dead front panel for a Data General S/130 (S/200 would also work) that can be a donor? All I need are two switches/paddles/Covers, but my S/200 front panel is perfect so I don't want to rob from that for the S/130 project. One light blue, one dark blue... Crossing my fingers..... J

8 years, 10 months

Some amount of DG goodness

by jwest＠classiccmp.org

I decided to raid the front panel of my S/200 to get a switch cover and a switch for the S/130; what can I say - I got antsy to see if the S/130 worked ;) When taking the S/200 front panel apart I found it really wasn't in great shape as it had appeared to be from the outside. A large number of the incandescents had broken off and were sitting loose and one of the switch covers was broken so someday I'll return to the S/200 but the S/130 restoration was completed as a result. Pictures (completely out of order) are at https://www.flickr.com/photos/131070638 at N02 but the first picture shows the cpu up. Once or twice, running the microcoded self-test produced a "Rom Error", but almost always it produces the desired result and loops on that test (checks microcode checksum, ability to execute and step microcode, a few CPU instructions & paths, and tests the lowest 16Kw of ram). Raising switch 0 halts cpu at microcode address 2 just as it should. I also noticed that on rare occasion, hitting "examine" on AC1 produces no result - but other than that I can store and read AC0-3 as well as several different sections of memory. Next step is to locate a 4045 board and see if I can get a console hooked up. After that, I'll need some way to get diagnostics into the machine. To that end, I could try restoring a HD, 8" diskette, paper tape, or dual cassette drive - but I'm wondering if there is any previous art for entering a front panel ditty and stuffing diags down the console port (from a PC)? Yes, google is my next stop ;) Thanks to several listmembers and especially Bruce for pointers and advice, as documentation is scarce and not organized the way my brain works. Best, J

8 years, 10 months

DEC Alpha 3000 Model 600

by rodsmallwood52＠btinternet.com

I'm pleased to be able to report the successful installation of OpenVMS 8.3 - Alpha on my 3000 M600 It now runs Dec Windows on the graphics screen and a terminal on the serial port. TCPIP works and I can get to my local network OK. Now to find a browser. There must have been one Rod -- Wanted : KDJ11-E for my 11/94 M8981 KK8-E M8300 KK8-E M8310 KK8-E M8320 KK8-E M8330

8 years, 10 months

TSS/8 with modern disks?

by charlesmorris800＠centurytel.net

OK, there does appear to be larger disk support... now how about for RL02? Unfortunately the drive is not as smart as an RK (can't do spiral read/writes) so that would complicate things. However, each side of cylinder 0 is about 10KB, so 20K is available without having to move the drive head. I bet that would be enough swap area most of the time (it's not like most of us have 16 users all logged on simultaneously) :) -Charles

8 years, 10 months

IBM 026

by jnc＠mercury.lcs.mit.edu

> Well, here's an 029 (not quite what the OP was looking for, but good > enough for you all, I expect) for a not insane amount of money: > http://www.ebay.com/itm/281796720725 So I see this sold - anyone know who got it? Noel

8 years, 10 months

IBM 026

by jnc＠mercury.lcs.mit.edu

> From: Marc Verdiell > thanks for taking care of a rare 026. Actually, IIRC this was an 029 - thread drift, after LCM (IIRC) enquired about a punch - for them, an 029 seemed as good as an 026. > this community is about celebrating people that have an interest in > saving old valuable hardware. Indeed, this whole list is about people saving computers that don't really have any _practical_ use any more. By definition, from a purely _functional_ perspective, their value is scrap. But our viewpoint is not that - we see them as interesting and historic artifacts - and in that light, their true value is set by that old mechanism, supply and demand. So some antique computers go for what I find remarkably low prices (e.g. QBUS -11 stuff) because there's a good supply, and other very similar machines go for a lot (that 11/70).because they are un-common. And IBM punches are not exactly common items... Noel

8 years, 10 months

Backups [was Re: Is tape dead?]

by jfoust＠threedee.com

At 05:57 AM 9/20/2015, Liam Proven wrote: >On 20 September 2015 at 05:58, John Foust <jfoust at threedee.com> wrote: >> Someone's demonstrated you can hide in the firmware of hard drives. > >And access the hypervisor layer of an OS in various ways from programs >executing inside a VM. Yeah, that too. The easy recombination and modularization of malware makes it so much worse. I suspect there are quite a few easy ways that malware could hold hostage the typical VMware / Hyper-V / Veeam / NAS / SAN setups at many businesses, and easy money because it would be far easier to pay the ransom than to perform full disaster recovery. On a more classic-computer bent, though, I try to look backwards for wisdom about how this problem could be solved, and it's such a different world with the Internet and higher stakes and dependency on networked computers... it's not easy to solve. - John

8 years, 10 months

VARM revision J transcription

by mouse＠Rodents-Montreal.ORG

Something like two and a half years ago, I got a copy of EL-00032-00-decStd32_Jan90.pdf, a one-image-per-page scan of a paper copy of the VAX Architecture Reference Manual. I don't know where I got it, but bitsavers has a file of the same name with the same MD5 checksum at /pdf/dec/vax/archSpec/EL-00032-00-decStd32_Jan90.pdf now, so it likely was there. I played with trying to build character-recognition software to convert it to text and eventually decided it would be quicker and easier to do it myself. I've just finished that. (I'm not sure whether it actually was quicker or easier....) The result is available from ftp.rodents-montreal.org in /mouse/docs/DEC/VARM/EL-00032-00-decStd32_Jan90.txt for anyone who would care to grab a copy. /~\ The ASCII Mouse \ / Ribbon Campaign X Against HTML mouse at rodents-montreal.org / \ Email! 7D C8 61 52 5D E7 2D 39 4E F1 31 3E E8 B3 27 4B

8 years, 10 months

← Newer
1
...
11
12
13
14
15
16
17
...
32
Older →

Jump to page:

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 September 2015