test-drb April 2017

test-drb@ccmp.vtda.org

169 participants
185 discussions

by cctalk＠snarc.net

https://www.gofundme.com/crunch-medical-fund Help if you can. We all owe a debt to John Draper aka the Cap'n. ________________________________ Evan Koblentz, director Vintage Computer Federation a 501(c)3 educational non-profit evan at vcfed.org (646) 546-9999 www.vcfed.org facebook.com/vcfederation twitter.com/vcfederation

7 years, 8 months

RTX-2000 processor PC/AT add-in card (any takers?)

by dfnr2＠yahoo.com

I have a Harris RTX-2000 based system control board for a long defunct system.? The board worked when removed more than 20 years ago in the mid 90's.? The RTX-2000 is a stack-based processor designed for running FORTH.? I think it was designed by Phil Koopman based on his graduate work.? The board is a 16-bit ISA board.? It was part of an MRI system that ran a version of MPE forth with a C-to-FORTH compiler (actually a C-like variant) that spits out a 16-bit FORTH variant with some embedded RTX-2000 code. I also have another card with 3 channels of streaming 16-bit digital I/O, with special hardware to implement on-the-fly rotation matrices to the streaming output. I have all the software and drivers as well. and I have written a c-based simulator that can run the FORTH/assembly emitted by the C-to-FORTH compiler (as well as the MRI libraries and hardware.) If anyone wants to tinker with this hardware, or just pull the RTX-2000 chip, I would rather find a good home than toss the boards. Dave

7 years, 8 months

IBM AS400 questions

by lyokoboy0＠gmail.com

Alright, it was quite a while back that I picked up my ibm AS400 model 170. I had asked some questions on the list, it was locked with a password and i could not get into the machine. I finally got around to getting into the machine and am at the main menu. Before i do anything, I want to back up the machine. I have a couple of tapes. I am not familiar with os/400 at all, the intention is to backup the machine so in the event of a hardware failure I will be able to reinstall and still have a licenced install. I come from the sgi land, usually from the prom there is the HINV command to give a nice hardware inventory of the machine, is there a similar command in the ibm world? I want to find what options are installed, cpu and memory details, etc. Any advice on what to do from here is much appreciated. I just want to get the thing backed up and rest assured that if the drives fail i can reinstall the os and it have its license. --Devin

7 years, 8 months

remember xvscan?

by dave＠661.org

Does anyone remember using xvscan? Does anyone know how to get a hold of it anymore? -- David Griffith dave at 661.org A: Because it fouls the order in which people normally read text. Q: Why is top-posting such a bad thing? A: Top-posting. Q: What is the most annoying thing in e-mail?

7 years, 8 months

RTX-2000 processor PC/AT add-in card (any takers?)

by jnc＠mercury.lcs.mit.edu

> From: Sean Conner > I really think it's for *this* reason (the handler() example) that C > doesn't allow nested functions. I wouldn't be sure of that; I would tend to think that nested functions were left out simply because they add complexity, and didn't add enough value to outweigh that complexity. (In ~40 years of programming in C, I have never missed them.) C seems (well, until the standards committees got ahold of it) to have added things as a demonstrated need was felt for them (see DMR's evolution of C paper), and maybe they just never found a need for nested function definitions? I suspect that Ken probably knows; he's not (AFAIK) on the Unix History list (TUHS), but several of his early co-workers (including Stephen Johnson, who did PCC) are, and could relay a question to him, if it were asked over there (if we really want to know). Noel

7 years, 8 months

The iAPX 432 and block languages (was Re: RTX-2000 processor PC/AT add-in card (any takers?))

by sieler＠allegro.com

Eric writes: The 432 architects went on to design a RISC processor that eliminated most of the drawbacks of the 432, but still supported object-oriented addressing, type safety, and memory safety, but using 33-bit word with one bit being the tag to differentiate Access Descriptors from data. This became the BiiN machine, which was unsuccessful. And we come full circle. One of the BiiN designers, John VanZandt (may have been from Intel) cut his teeth on the Burrough B6700 at UCSD (tags, descriptors, stack), and was one of the original implementors of UCSD Pascal. At school, he roomed with a FORTH/LISP/APL implementor (me). Small world, sometimes :) Stan

7 years, 8 months

Atlanta and lots more VCF news

by cctalk＠snarc.net

VCF East is done, VCF Southeast is next (April 29-30), VCF West is August 5-6, and this summer we're announcing a NEW edition of the show in an awesome place. :) Southeast will feature former Apple Macintosh exec Andy Hertzfeld and former Tandy exec Don French. I will be there too, but don't let that stop you from going. ;) http://vcfed.org/wp/festivals/otherevents/vintage-computer-festival-southea… ________________________________ Evan Koblentz, director Vintage Computer Federation a 501(c)3 educational non-profit evan at vcfed.org (646) 546-9999 www.vcfed.org facebook.com/vcfederation twitter.com/vcfederation

7 years, 8 months

VCF East pictures

by vintagecomputer＠bettercomputing.net

Thanks so much to everyone sharing these. ?Ive not renewed my passport in a while and can't get to any of these events in the US so I really appreciate these. ?Maybe someday we can get a 360/VR type tour thing going. Sent from my Samsung device -------- Original message -------- From: Evan Koblentz via cctalk <cctalk at classiccmp.org> Date: 2017-04-10 12:13 AM (GMT-08:00) To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk at classiccmp.org> Subject: VCF East pictures VCF East XII was held March 31-April 2. Around 500 people were there. Adam Michlin's pictures: http://ceos.io/vcf/east/ Dave Riley's pictures: http://oscar.the-rileys.net/VCF%20East%20XII%20Photos/ Dan Roganti's pictures: http://www.rogtronics.net/blog/?page_id=730 Mike Loewen's pictures: http://q7.neurotica.com/Oldtech/VCF-East2017/ Herb Johnson's pictures: http://www.retrotechnology.com/vcfe12/vcf_east_2017.html ________________________________ Evan Koblentz, director Vintage Computer Federation a 501(c)3 educational non-profit evan at vcfed.org (646) 546-9999 www.vcfed.org facebook.com/vcfederation twitter.com/vcfederation

7 years, 8 months

Another unknown frontpanel

by cc＠informatik.uni-stuttgart.de

Hi, I have another frontpanel, this one is from Plessey Peripheral Systems and must come from a 16 bit system. It's only the board with LEDs and switches. Does anyone know the system this panel comes from? http://computermuseum.informatik.uni-stuttgart.de/pics/temp/plessey_fp.jpg Christian

7 years, 8 months

VCF East pictures

by cctalk＠snarc.net

VCF East XII was held March 31-April 2. Around 500 people were there. Adam Michlin's pictures: http://ceos.io/vcf/east/ Dave Riley's pictures: http://oscar.the-rileys.net/VCF%20East%20XII%20Photos/ Dan Roganti's pictures: http://www.rogtronics.net/blog/?page_id=730 Mike Loewen's pictures: http://q7.neurotica.com/Oldtech/VCF-East2017/ Herb Johnson's pictures: http://www.retrotechnology.com/vcfe12/vcf_east_2017.html ________________________________ Evan Koblentz, director Vintage Computer Federation a 501(c)3 educational non-profit evan at vcfed.org (646) 546-9999 www.vcfed.org facebook.com/vcfederation twitter.com/vcfederation

7 years, 8 months

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test-drb April 2017