test-drb February 2018

test-drb@ccmp.vtda.org

160 participants
141 discussions

by jnc＠mercury.lcs.mit.edu

So I bought some of those fiche that that eBay seller had, for publications I couldn't locate (either physical, or online), but now that I have a complete set of fische, the duplicates aren't any use. So, if anyone has a use for them, let me know, FTGH: They are: BA11-N Tech Manual BA11-N User's Guide DC11 Tech Manual DEUNA Tech Manual DR11-B Maint Manual FP11-B Maint Manual KB11-A,D Maint Manual KD11-D Maint Manual KK11-A Tech Manual (Please don't say "I'll take them all", I'd like to 'spread the wealth' around a bit... :-) Noel

6 years, 10 months

PDP 11/05 - looking for help

by jnc＠mercury.lcs.mit.edu

> From: sop00000h > I read in somebodies note about jumpers @W1 and W2 on the M7261F that I > have. Apparently cutting one of these disables the onboard uart and > will allow me to put in a serial card. Yes, W1. And it's not cutting, it's inserting. > I cant find the jumpers. They aren't labeled, which does not help! With the board component face up, and the contact fingers at the bottome, W1 is to the right of E69, and W2 is to the right of E73. > Nor can I find a print set. Any suggestions? Of the 4 known sets of drawings for the -11/05, 3 are available online. This page: http://gunkies.org/wiki/PDP-11/05 gives the names, which should help you locate them (all are in BitSavers, IIRC). Noel

6 years, 10 months

Reading a PDP-11 RL02: Anyone Around the U.S. West Coast?

by jnc＠mercury.lcs.mit.edu

> From: Bill Degnan > What is the OS of the disks, what system was this disk used to > create/save files to the RL02? Doesn't really matter, does it, as long as the bits can all be read off the pack into a file? Once it's in a file, the appropriate OS, running in a simulator (and most are, these days) can read the files out. Worst case, someone can write a program to read the files out (I've done that for V6 filesystems - before I found http://www.tuhs.org/Archive/Tools/Filesys/) and also 4.2 FFS. (And somewhere I used to have a program to read DOS disks, but I just looked and couldn't find it.) Noel

6 years, 10 months

How to enable USB drives in both Windows 98SE AND MS-DOS 7.1.

by jnc＠mercury.lcs.mit.edu

> From: Grant Taylor > I've had plenty of things that I've found and referenced over the years > that have disappeared from where I knew it was. Ah, bit rot - the scourge of the Web. Thank G-d for the Internet Archive! Although at least one major list archive had been marked to exclude robots, or something, because even though I had 'good at one point URLs', the IA contained... zip. > I've taken to mirroring copies of it on my site, with proper > accreditation. Yes: http://www.chiappa.net/~jnc/tech/archives.html#Personal and of course also: http://ana-3.lcs.mit.edu/~jnc/cctalk/ (need to add a link to that one on my home page...) Noel

6 years, 10 months

How to enable USB drives in both Windows 98SE AND MS-DOS 7.1.

by jnc＠mercury.lcs.mit.edu

> From: Grant Taylor >> people are more likely to find it, when they're looking for info on a >> topic, if it's part of something like the CHWiki, than they are on >> individual Web sites. > I question the validity of it. It wasn't just supposition on my part; as I had mentioned: >> I just tried a few samples to verify that claim and I didn't cheat by using, e.g. KT11-B, I tried to use fairly generic things, e.g. 'RK05 disk drive' (third listing), 'PDP-11' (fifth listing), etc. Admittedly, that's hardly cast-iron proof, but it's a lot beter than just 'it stands to [my] reason'.... > searching Google for CHWiki came up with things that I think were name > collisions. Huh? If you do a Google search for 'computer history wiki', it's the first non-Wikipedia page in the results list. I call it the CHWiki when typing posts for here since I would get tired of typing out the whole long 'Computer History wiki' every time, but I will add that short term to some pages there to help it show up under that name. > I'd be more likely to publish things on (what I consider to be) an even > bigger and more well known Wiki, namely Wikipedia. Be my guest! :-) I've been there, done that, and moved on, because I got tired of stupidity like this: https://en.wikipedia.org/wiki/Talk:History_of_the_Internet/Archive_3#Pictur… Also, the page that started this ("How to enable USB drives in both Windows 98SE AND MS-DOS 7.1") might well be ditched from Wikipedia, for a variety of Wiki-bureacratic reasons I won't get into here ('no original research', plus to which it's not really suitable material for a general encyclopaedia). >> http://www.chiappa.net/~jnc/tech/V6Unix.html >> http://www.chiappa.net/~jnc/tech/multics/MulticsPanels.html >> http://ana-3.lcs.mit.edu/~jnc/tech/DECIndicatorPanels.html >> >> so I do understand going that way. > it seems as if you are asking us to do something different than you > yourself are currently doing Err, no. The first and third _pre-date_ my joining the CHWiki. Why I did the second one as a page on my own site, I don't really recall - maybe because it changed so much in the course of researching it? (It's very convenient - I had the HTML source on disk opened in a browser window, and any time I wanted to see what it currently looked like, I just had to hit the 'refresh' button.) I have done several major things only on the CHWiki, e.g.: http://gunkies.org/wiki/KT11-B_Technical_Manual as well as a ton of other stuff. But clearly you aren't interested in moving off your own personal site - which is fine. Noel

6 years, 10 months

KDF11-B ROM machine-readable source

by jnc＠mercury.lcs.mit.edu

Is the code for the KDF11-B ROMs available in machine-readable source anywhere? I looked with Google, but couldn't find anything. Eventually I recalled having seen it in the fiche, which was better than nothing (disassembling something that size to see how it worked was, ah, unappealing, shall we say?), but it's still pretty hard to work with (where is 'FOO:' in all these pages), hence the interest in the machine-readable source. BTW, it appears these ROMs can be used in the BDV11, too - which is nice because the stock BDV11 code only checks 256 KB, whereas the KDF11-B code does the whole 4MB (and, IIRC, support more devices, too). I bought a BDV11 which had EPROM's in it which did more than 256KB, and looking at them, they appear to contain the KDF11-B code. So I promptly made a bunch of copies and installed them in place of the stock ones in my other BDV11's! :-) Noel

6 years, 10 months

How to enable USB drives in both Windows 98SE AND MS-DOS 7.1.

by jnc＠mercury.lcs.mit.edu

> From: Terry Stewart > If I had to go to that extent of writing it as a robust, referenced, > refereed, definitive technical article, I probably wouldn't bother. Sure. Neither would I. But how is this relevant to the CHWiki question? Noel

6 years, 10 months

DECwriterIV/LA100s and large DEC

by shadoooo＠gmail.com

Hello Adrian, do you think that you could ship one of the LA100-CA to Italy? Thanks Andrea

6 years, 10 months

How to enable USB drives in both Windows 98SE AND MS-DOS 7.1.

by terry＠webweavers.co.nz

The title might suggest to topic is not vintage, but the reason I did this myself was to facilitate classic computer disk imaging. I?ve recently given USB drive capability to the MS-DOS 7.1 environment in a Windows 98SE computer I use for the purpose above. It was a bit of work configuring the machine to ensure both the MS-DOS drivers and the Windows 98SE drivers co-existed peacefully. I'm no Windows 98 guru (or MS-DOS guru for that matter) so it may not be the most efficient or elegant of solutions. However, it worked for me. That being the case I thought I?d document what I did. Hopefully the article will be useful to others who might want to do this. http://www.classic-computers.org.nz/blog/2018-02-05-USB-in-MS-DOS-and-Win98… Terry (Tez)

6 years, 10 months

Microfiches on Ebay

by mattislind＠gmail.com

Ebay seller Lobo Rose Images has almost 300 auctions for microfiches on DEC documents. Many are already available online but some I cannot find. http://stores.ebay.com/Lobo-Rose-Images/Microfiche-/_i.html?_fsub=237202150… /Mattis

6 years, 10 months

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test-drb February 2018