test-drb October 2005

test-drb@ccmp.vtda.org

264 participants
655 discussions

Vintage Computer Festival 8.0 Event Guide

by vcf＠siconic.com

Vintage Computer Festival 8.0 Saturday & Sunday, November 5-6 Computer History Museum Mountain View, California http://www.vintage.org/2005/main/ This is your complete VCF 8.0 event guide! Vintage Computer Festival 8.0 happens this coming Saturday and Sunday, November 5th and 6th, at the Computer History Museum in Mountain View, California. The doors open at 9:30am each day. Speaker sessions begin at 10:00am and run until 2:00pm. The exhibit and marketplace open at 2:00pm and run until 6:00pm. Admission is $12 per person per day for full event access, including the speakers, exhibits and marketplace, or $7 per person per day for exhibit and marketplace only (exhibit and marketplace open at 2:00pm each day). Parking is free, and kids 17 and under are admitted free of charge. Homebrew Computer Club Retrospective The VCF in conjunction with the DigiBarn Computer Museum is proud to present a 30th anniversary celebration of the founding of the Homebrew Computer Club, the legendary Silicon Valley institution that helped to launch the era of the personal computer. Bruce Damer of the DigiBarn Computer Museum will moderate this panel of former Homebrew members, including Steve Wozniak, Lee Felsenstein, Allen Baum, Len Shustek, Bob Lash and Michael Holley. Join the panel as they recount their experiences and gab with the group as we feast on some yummy cake, courtesy of the DigiBarn: http://www.digibarn.org/ VCF 8.0 Speaker Schedule The speaker schedule for VCF 8.0 is as follows: Saturday, November 5 Time Session Title Speaker(s) ------- -------------------------------------- -------------------- 10:00am Film Screening: The Future of Pinball Greg Maletic 11:00am IOCCC Award Presentation Ceremony Landon Curt Noll 12:00pm VCF Shenanigans Sellam Ismail 1:00pm Homebrew Computer Club Retrospective Steve Wozinak Lee Felsenstein Join us in a celebration of the 30th Len Shustek anniversary of the founding of the Michael Holley Homebrew Computer Club. Moderated by Bob Lash Bruce Damer of the DigiBarn. Allen Baum Sunday, November 6 Time Session Title Speaker(s) ------- -------------------------------------- -------------------- 10:00am A History of the Smart Card Jerry Svigals 11:00am Yack 'N Hack: Computers Talk Back Deborah Norling 12:00pm A Personal Re-telling of Personal Dave Freeman Computer Retailing 12:30pm Nerd Trivia Challenge! Evan Koblentz and three Uber Nerds Are you up to the Challenge? Hosted vying for the prize! by Evan Koblentz, editor of the Computer Collector Newsletter 1:00pm In The Beginning: A BBS History Christian Wirth Discussion Joe Russack Ernie Longmire A panel discussion to follow-up the screening of BBS Documentary on day one of the VCF. Moderated by director Jason Scott. For complete details on this year's speaker series including session abstracts and speaker biographies, visit: http://www.vintage.org/2005/main/speaker.php Nerd Trivia Challenge The Nerd Trivia Challenge is a trivia contest to test the knowledge of the most serious computer history buffs. Contestants are chosen from VCF attendees who qualify for play by taking a preliminary quiz upon arrival at the VCF on Saturday, November 5. Those applicants scoring highest on the preliminary quiz will be selected to compete in the Nerd Trivia Challenge on Sunday, November 6, at 12:30pm. The Nerd Trivia Challenge is being hosted by Evan Koblentz, editor of the Computer Collector Newsletter: http://news.computercollector.com To participate in the Nerd Trivia Challenge, ask to take the NTC preliminary quiz when you arrive at the VCF registration desk. Film Screenings The VCF is proud to present the first ever public screening of a new documentary film titled "The Future of Pinball": http://www.thefutureofpinball.com The Future of Pinball is a new documentary on the recent history of the pinball industry. The showing is a beta version of the film and VCF attendees will have a chance to help direct the final cut based on the feedback they provide. Be sure to catch director Greg Maletic's talk on Saturday, November 5, at 10:00am. The VCF will also be reprising a screening of BBS Documentary: http://www.bbsdocumentary.com The screening will take place on Saturday, November 5, and the film will be shown in its entirety to all VCF attendees. On Sunday, November 6, join director Jason Scott and three of the subjects from the film at the BBS history panel at 1:00pm. Tours and Excursions Guided tours of the Computer History Museum Visible Storage collection will be conducted on Saturday, November 5, with Visible Storage open for self-guided tours on Sunday, November 6. For those interested in touring the DigiBarn Computer Museum, curator Bruce Damer will lead an excursion into the Santa Cruz mountains that will disembark from the VCF at 3:00pm. Complete details and tour times are available on the VCF 8.0 website: http://www.vintage.org/2005/main/tours.php Bring On The Exhibits! Once again the VCF has attracted some rather fascinating exhibits. Check out what we've got in store for VCF 8.0: http://www.vintage.org/2005/main/exhibit.php We look forward to having you at the Vintage Computer Festival. I'll see you there! Best regards, Sellam Ismail Producer Vintage Computer Festival -- Sellam Ismail Vintage Computer Festival ------------------------------------------------------------------------------ International Man of Intrigue and Danger http://www.vintage.org [ Old computing resources for business || Buy/Sell/Trade Vintage Computers ] [ and academia at www.VintageTech.com || at http://marketplace.vintage.org ]

18 years, 6 months

Short review of $550 power cord plus a new SWTPC 6800

by cctech＠retro.co.za

> One of my machines has a "Turbo" button that changes from "HI" to "LO". The last time I jumper-programmed one of those little boards I made the display read "SLO" and "dEd"... W

18 years, 6 months

ID: Memorex 3266?

by cheri-post＠web.de

Toresbe, the documents I found at my place are the following: - BT3200 Series 324x/326x/328x MagneticTape Controller: Logic Diagrams (schematics) - BT3200 Series 324x/326x/328x MagneticTape Controller: Theory of Operation Manual - BT3200 Series 324x/326x/328x MagneticTape Subsystem: Installation Manual √ - BT3200 Series 324x/326x/328x MagneticTape Subsystem: Maintenance Manual √ - BT3200 Series 324x/326x/328x MagneticTape Unit: Theory of Operation Manual They are Unisys labeled, but actually, they are Fujitsu 2436 drives. Installation and Maintenance Manuals afre already scanned in. They are somewhere on my DVDs, give me some time to look up where they are and I can send them to you. Regards, Pierre > > Hey, I've come across a Memorex 3266 half-inch tape drive (well, > actually several, but only one seems near to operable condition). > > picture: http://toresbe.at.ifi.uio.no/3266.jpeg > > Anyone recognize it and know what densities and interface(s) it used? > Guesses are also appreciated ;) It's an autoloader, right? > > I've been googling, and also bitsavers has nothing on it. Grateful for > any hints. > > -toresbe > ______________________________________________________________ Verschicken Sie romantische, coole und witzige Bilder per SMS! Jetzt bei WEB.DE FreeMail: http://f.web.de/?mc=021193

18 years, 6 months

cctalk Digest, Vol 26, Issue 93

by bobalan＠sbcglobal.net

>From The 1969 Motorola data book: THe MC1806 is a quad 2 input DTL AND gate. Bob Message: 21 Date: Sun, 30 Oct 2005 22:41:27 +0000 (GMT) From: ard at p850ug1.demon.co.uk (Tony Duell) Subject: Waht is an MC1806 ? To: cctalk at classiccmp.org Message-ID: <m1EWLrm-000Iy2C at p850ug1> Content-Type: text/plain The Subject: line says it all really, but perhaps I should give a little more explanation. I am working on an HP59405, which is the HPIB interface for the HP9830 'calculator'. On the PCB are 2 chips which cross to something called an MC1806. This is not in any of my Motorola databooks. What I have determined (I think) so far : 1) 14 pin DIL package, power on 14, ground on 7 as usual. 2) Seems to be a quad 2-input device, pinout as the 7400 -- that is, inputs on 1 and 2, output on 3, etc. 3) Seems to be DTL in that the output directly drives the base of an NPN transsistor, the emitter of which is grounded. 4) The most logical (!) function would be a quad 2 input NOR gate. Maybe an AND gate? Does anyone have a databook that lists it? -tony

18 years, 6 months

Waht is an MC1806 ?

by ard＠p850ug1.demon.co.uk

The Subject: line says it all really, but perhaps I should give a little more explanation. I am working on an HP59405, which is the HPIB interface for the HP9830 'calculator'. On the PCB are 2 chips which cross to something called an MC1806. This is not in any of my Motorola databooks. What I have determined (I think) so far : 1) 14 pin DIL package, power on 14, ground on 7 as usual. 2) Seems to be a quad 2-input device, pinout as the 7400 -- that is, inputs on 1 and 2, output on 3, etc. 3) Seems to be DTL in that the output directly drives the base of an NPN transsistor, the emitter of which is grounded. 4) The most logical (!) function would be a quad 2 input NOR gate. Maybe an AND gate? Does anyone have a databook that lists it? -tony

18 years, 6 months

Book worms

by KParker＠workcover.com

Thanks Frank - that was close - I went to Amazon and "The Maverick and His Machine: Thomas Watson, Sr. and the Making of IBM" appeared as a book you buy together as package with the one you suggested. Thanks for the tip!!!!!!!!!!!!!! http://www.amazon.com/gp/product/0471414638/ref=bxgy_cc_img_b/102-902131 0-4684938?%5Fencoding=UTF8 ++++++++++ Kevin Parker Web Services Consultant WorkCover Corporation p: 08 8233 2548 m: 0418 806 166 e: kparker at workcover.com w: www.workcover.com ++++++++++ -----Original Message----- From: cctech-bounces at classiccmp.org [mailto:cctech-bounces at classiccmp.org] On Behalf Of Frank McConnell Sent: Monday, 24 October 2005 9:39 AM To: cctalk at classiccmp.org Subject: Re: Book worms Kevin Parker wrote: > I am trying to identify a book that I want to get. > > My vague recollection is that it was about IBM or IBM Blue and may > have been about the history of IBM or one of its owners/directors. > > I vaguely recall the front cover had a man standing in it. You may be remembering _Father, Son & Co.: My Life at IBM and Beyond_ by Thomas J. Watson Jr. and Peter Petre. Searching eBay for "Father Son Co." will get you some pictures. -Frank McConnell ************************************************************************ This e-mail is intended for the use of the addressee only. It may contain information that is protected by legislated confidentiality and/or is legally privileged. If you are not the intended recipient you are prohibited from disseminating, distributing or copying this e-mail. Any opinion expressed in this e-mail may not necessarily be that of the WorkCover Corporation of South Australia. Although precautions have been taken, the sender cannot warrant that this e-mail or any files transmitted with it are free of viruses or any other defect. If you have received this e-mail in error, please notify the sender immediately by return e-mail and destroy the original e-mail and any copies. ************************************************************************

18 years, 6 months

hp 86

by emu＠ecubics.com

Hi all, any idea which (non HP) monitors I could hook up on it ? (It looks like FBAS, but I read somewhere, that the riming is non standard) And, anybody can help me out with a CP/M disk for the HP 86 ? Cheers & thanks

18 years, 6 months

Yet another idea for recovering the data from Series80 tapes

by vp＠cs.drexel.edu

ard at p850ug1.demon.co.uk (Tony Duell) wrote:... > Hmmm. I thought it was where the taps stuch to itself, or to the drive > belt, when the catridge was stored. In which case your idea might not > help much. Aha! There goes my original hypothesis. Well, that is relatively easy to check. I took apart two old tapes and found the following: Assuming that the tapes were rewound before storage, there are two stretches of weakened magnetic coating on both tapes I looked at; the first was short while the second longer. These correspond to the length of tape in contact with the drive belt In http://www.series80.org/Articles/tape-cartridge-lr.gif you can see that on the take up reel (left) there is less tape in contact with the drive tensioning belt, while on the right hand reel (which has most of the tape and hence a longer radius) more tape comes in contact with the belt. Looking closely at the belt, I can see remnants of tape oxide stuck on it (in fact its stuck so well, I could not remove it). So how come we get an EOT error when using these tapes? The tape has tiny holes near the beginning and end signifying BOT and EOT. (BOT) (EOT) +-------------------------- .... --------------------------------------+ | | | o o o o o | | | +-------------------------- .... --------------------------------------+ I assume that the first hole signifies the end of the data region and then if the drive sees one hole its EOT, while if it sees two holes (prob. more than one) its BOT. So when it sees the blank region, it interprets it as one hole and reports end of tape. Using a marker to paint (on the back side of the tape) over the region does not work, since the markers I tried allow some light to go through. I stuck a piece of splicing tape and that took care of the hole, but I got a DATA error. I guess the 85 needs some of the info that is missing >from the tape. I have also noticed that the tape does indeed stick onto itself on the right hand reel, but if you unwind it slowly you can get it unstuck without damaging it. I assume that conditioning the tape by warming it up before use may reduce this sticking problem, but I still would not want to fast wind a tape in that condition. Given the above, I am even more confident about data recovery, as we may be able to use the existing tape mechanism of the 85 to read the data by skipping the regions that appear blank until the tape un-spools and the drive stalls. This may end up being a software project after all :-) So the new plan is to see how I can get the tape moving at 10 ips (I'll look at the 9815 diagrams) and see how I can tap the output of the read/write IC (1820-2418) to get the bits from the tape. If this does not work, I'll have to get somebody to help me built the preamp for the heads. I wish I could understand this infernal assembly language of the 85 so that I could look at the internal routines that access the tape for ideas. ------------------ ard at p850ug1.demon.co.uk (Tony Duell) wrote: > Does anybody know if those drives are tape and track compatible > with the 85 drive? In other words, would the 2 track head of a 9815 > correctly read the tracks on an 85 tape (yes, I know the controllers > are very different). There was a program on the Series-80 User's Library (8291029) that allowed retrieving 9845A SAVEd programs. The program was for the HP-85 and did not specify any ROMs or peripherals. You may infer >from that, that the Series 80 could read 9845 tapes. On the other hand, the 9845 used dual directories (the second one was a backup) per tape while the HP85 only uses one, so this may be an indication that they are NOT compatible. -------------------- "Joe R." <rigdonj at cfl.rr.com> wrote: > Both ideas sound do-able to me. It might also be a good way to find out > how HP "protect"s the program tapes and possibly duplicate them. I would guess some bit in the directory entry (like LIF volumes), but if my plan works, we'd be able to copy tapes at the bit level so HP's protection would be irrelevant. > Where are you located? I have a couple of spare scopes and I might be > presauded to loan you one. But I'll have to do some checking to be sure > that that these specific models can survive shipping. Thanks for the offer, but I work at the College of Engineering here at Drexel, so I can find a scope (as well as someone who can tell me how it works :-) -------------------- So, back to the drawing board... **vp

18 years, 6 months

Availble for pickup PRO3xx parts

by ajp166＠bellatlantic.net

Someone has asked for them. Thanks. Allison > >Subject: Availble for pickup PRO3xx parts > From: Allison <ajp166 at bellatlantic.net> > Date: Sun, 30 Oct 2005 14:52:04 -0500 > To: cctalk at classiccmp.org > > >I have the following items for LOCAL PICKUP ONLY. No shipping. >Area: framingham MA. > >One Pro350 mainboard with all modules and memory (no case). > >Two Pro380 boards one fairly complete with memory and plug >in cards. > >One Pro350/380 PS > >These were working spares for back when I had a PRO380. > >They are free. > > >Allison

18 years, 6 months

CMD/DILOG Q22 SCSI question

by vax9000＠gmail.com

Hi list, I have a question for those of you who have fast CMD/DILOG Q22 SCSI controllers. Do you have trouble to run NetBSD 1.5.2 (maybe other 1.5.x too) on your Qbus VAX with CQBIC CDAL-Q22 controller? I found that if my board performed two burst mode DMA transactions in one DMA grant, the machine had machine check 10 errors (10us time out when CPU accessed memory that was mapped to the QBUS) from time to time. If I set the board to have one transaction a grant, there was no machine check 10 error. I read the diagram carefully and it seemed my board followed QBUS DMA protocal well. It was the CQBIC controller that prolonged the DMA (slow RPLY as response to DIN). I guess there are two solutions. One is that the software re-try the memory after machine check and keep going. The other is to stay with single shot DMA and be very slow. My guess is those fast CMD/DILOG boards have this problem with CQBIC too. If so, VMS would take the re-try approach. Could you conform or deny my guess? Thank you. My system is KA655 + two MS650-BA. Thank you. vax, 9000

18 years, 6 months

← Newer
1
...
4
5
6
7
8
9
10
...
66
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 October 2005