Re: HP 9836U processor mystery...

On 11/8/2017 2:31 AM, Tony Duell wrote: On Wed, Nov 8, 2017 at 7:05 AM, Josh Dersch wrote: On 11/6/2017 8:59 PM, Tony Duell wrote: What BOOTROM version do you have in your machine? I have 4.0, I'm curious if there's a later version. Mine is 4.0 -tony Found a doc on Bitsavers (http://bi

OT: Trying to fix my account

Sorry for the spam - I'm trying some ideas to see if I can figure out why I don't get cctalk/cctech messages anymore (for about a month now). -- Ian -- Ian S. King, MSIS, MSCS, Ph.D. Candidate The Information School Dissertation: "Why the Conversation Mattered: Constructi

Re: Computing Pioneer Dies

Fascinating talk Marc On Nov 10, 2017, at 8:16 PM, Jason T via cctalk wrote: >> I'm harly a member of the "ENIAC/Mauchlyite crowd" (in fact, I used to not >> have a good impression of them at all), but I thought Haigh et al made a >> pretty good case. > > Here's Prof. Haigh speaking on ENIAC at

LA30 parts and question

Hi folks, I'm picking my way through an LA30 restoration right now. It was pretty filthy, so I've needed to pretty thoroughly disassemble it for proper cleaning. I noticed that a few of the thin steel ribbon springs in the paper path are missing or broken on my unit, and some of the rubber

VCF PNW (Feb 2018): Second call Exhibitors and Speakers

In case you missed it we (the Vintage Computer Federation) is putting together a Vintage Computer Festival (VCF PNW) at the Living Computer Museum+Labs in Seattle. We are actively looking for exhibitors and speakers for this new show. The show will be held February 10th and 11th, 2018. We are no

Re: RL02 Spinup fails

> On Nov 11, 2017, at 2:42 PM, Aaron Jackson wrote: > >> Aaron, >> >> Do not underestimate the need for termination, even with a very short >> external cable. >> When you factor in the internal cables runs, crosstalk or signal >> reflections which interfere >> with operation may still be pres

Re: RL02 Spinup fails

>> > Could elaborate a bit on this part of your earlier message. > >> I managed to boot into XXDP today using tu58em and ran the RLV12 >> controller test. It seems though that the version of XXDP I loaded does >> not support the 22bit address (17774400) and defaults to the 16bit >> address (17440

Re: RL02 Spinup fails

> Aaron, > > Do not underestimate the need for termination, even with a very short > external cable. > When you factor in the internal cables runs, crosstalk or signal reflections > which interfere > with operation may still be present, especially when data transfers start. > > If you have acces

Re: RL02 Spinup fails

> On Nov 11, 2017, at 10:58 AM, Aaron Jackson via cctalk > wrote: > > ……... > The RL02 technical manual says to figure out why a drive error occurred, > I can execute a get status command (?) and then perform an MPR read > (?). So while I don't know how to do that, the error could be one of the

Re: RL02 Spinup fails

> From: Aaron Jackson > The RL02 technical manual says to figure out why a drive error > occurred, I can execute a get status command (?) and then perform an > MPR read (?). So while I don't know how to do that, RLV 12 User Guide, section 5.2. Noel

Re: RL02 Spinup fails

I have successfully built a rl02 disk using pdpgui on a windows XP laptop, the newer version works on window 10. All you need other than the software is a serial card like a m7800. Pdpgui acts as a gui. Do you have a m9312 rom/terminator card with a terminal console rom? Bill Degnan twitter: b

Re: RL02 Spinup fails

It sounds silly but I don't actually have access to a Windows machine, but PD11GUI looks nice. I managed to boot into XXDP today using tu58em and ran the RLV12 controller test. It seems though that the version of XXDP I loaded does not support the 22bit address (17774400) and defaults to the 16bit

Re: Computing Pioneer Dies

Heh ... so it begins on cctalk. Just like in modern politics, or science, etc., people have opinions which they think override facts. :) My own father does this and it drives me crazy. I'll say, "2+2=4" and he'll say, "I believe it's 5" ... DAD IT DOESN'T MATTER WHAT YOU FRIGGING BELIEVE, 2 PL

Re: Computing Pioneer Dies

https://www.theguardian.com/global/2017/nov/08/geoff-tootill-obituary I should point out there is a technical error in the Guardian. The Baby was the first Electronically Stored Program in what today we would call RAM. ENIAC had been configured in stored program mode earlier in the year and ha

RE: Computing Pioneer Dies

> -Original Message- > From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf Of Jason T via > cctalk > Sent: 11 November 2017 04:16 > To: General Discussion: On-Topic and Off-Topic Posts > > Subject: Re: Computing Pioneer Dies > > > I'm harly a member of the "ENIAC/Mauchlyite crow

WTB: DEC DE500-FA

Please contact me off list if you have any you want to trade or sell. Thanks, Paul