test-drb September 2018

test-drb@ccmp.vtda.org

141 participants
154 discussions

early ANSI C drafts, pre-1989 standard

by spacewar＠gmail.com

I'm interested in looking at any published drafts prior to the C 1989 standard. I found X3J11-88-090 here: https://yurichev.com/ref/Draft%20ANSI%20C%20Standard%20(ANSI%20X3J11-88-090… That makes mention of the previous draft being X3J11-88-001. Does anyone still have a copy of that draft, or other pre-89 drafts? I'm not looking for any of the published standards (I've purchased them), nor any drafts after the 1989 standard. Eric

5 years, 8 months

TU58 tape formatter (was Re: rebuilding DC100A cartridges?)

by shadoooo＠gmail.com

Hello. I have a VAX730 with both TU58 drives destroyed (capstan melted, need replacements). I also have a bunch of cassettes, but unfortunately all seem to have problems with the bend and/or bad spots on the tape. Possibly I would try to replace the broken bands (if I find a source) and/or replace the magnetic tape when damaged (I was thinking to try with audio cassette tape, don' t know if metal oxide high density tape could be good for it). Anybody has some information about the coercivity of original DEC TU58 tape? One problem indeed is the need of reformatting the tape, but: if I can emulate the TU58 drive using a serial, would it be possible to send raw commands to the drive using the serial and a PC? Andrea PS-If possible, some good-condition cassette would be very useful to me too. I'm located in Italy.

5 years, 8 months

IP address classes vs CIDR (was Re: Reviving ARPAnet)

by jnc＠mercury.lcs.mit.edu

> From: Eric Smith > which would respond to ARP requests for non-local addresses and reply > with the router's MAC address (on that interface), specifically in > order to make classful-only hosts work on a CIDR network. Yeah, Proxy ARP (an early RFC here: https://www.rfc-editor.org/rfc/rfc1027.txt but IIRC it was people at CMU who first came up with the idea; this RFC is >from people at UT-Austin, documenting it) was originally done to support subnetting (see https://www.rfc-editor.org/rfc/rfc917.txt for more) when it was first introduced - for hosts for which people didn't have the source, but needed to attach it to a subnetted network. Subnetting was a stage before CIDR (which took subnetting and Carl-Herbert Rokitansky's 'supernetting' and mushed them together). Noel

5 years, 8 months

DG/UX install media

by alan＠alanlee.org

Does anyone have install media for DG/UX targeted for M88100 CPUs (specifically Aviion)? Any version Thanks, -Alan

5 years, 9 months

pdp-11/34 extravaganza

by jwest＠classiccmp.org

I was contacted about an 11/34 system available. It appears to be not just a system, nor just a system in a rack, but pretty much a full installation and all the trimmings (printers, terminals, documentation, media, etc.). I am pretty sure some of the terminals will invoke interest at the very least ;) Note - the person who has it is looking for a sale. No prices have been discussed, but my impression is they aren't going to let it all go for $50 :) The stuff is located in the Detroit metro area. I am not (nor do I want to be) involved in this transaction in any way. I'm just passing it on. I would prefer to pass it to someone who has a demonstrated ability (and resources) for rescues of this size and type of equipment. All I care about is that the equipment is rescued and by a responsible party. Do not email me expressing interest in just one or two items. I will pass it all to one person - if THEY want to part it out *after the deal* that's fine. I do have a single picture I can forward. If interested email me directly.. Terminals (screen, keyboard, mouse) (1 is custom built) - Quantity: 2 -Tektronix 4012 - Quantity: 1 -Tektronix 4010 - Quantity: 1 - Custom Built Tektronix Printer Terminal with Monitor (keyboard) - Quantity: 1 - Digital VT100 - Quatity: 2 - Digital VT105 Printer Terminal - Quantity: 2 - DEC Writer IV PDP 11/34 (edit by jay - I believe there is only one 11/34, not 4. I could be wrong.) - Quantity: 1 - 11/34A-DH - 115 Volts / 60Hz - Quantity: 1 - 1134A-XE - 120 Volts / 60Hz - Quantity: 1 - 11/34A-YE - 120 Volts / 60Hz - Quantity: 1 - 11/34A DE - 120 Volts / 60Hz Digital RL01 - Quantity: 2 Digital RL02 - Quantity: 2 Digital RX02 - Quantity: 4 - 1 out of the 4 is non-functioning Digital RX01- Quantity: 2 DEC Magnetic Disk Drivers - Quantity: 23 (possibly more) Some are RL01K-DC and some are RL02K-DC One has Fortinet on it IEE Serial Display Quantity: 1 Digital M9202 Quantity: 5 Digital M9741 Quantity: 1 Digital M9312 Quantity: 1 Digital M9302 Quantity: 2 Digital M7850 Quantity: 2 Digital M9301 Quantity: 2 Digital QSC H322 Quantity 1, possibly 2 Various Spare Parts -Printing Paper -Original Printing Ink -INMAC Air Filters -RX02 Replacement Fan -Extra Cable for PDP 11/34 -Moss Memory for PDP 11/34 -Spare Power Supplies -3 cases of documentation for the different components and programs Half Rack with Built In Power Supply Digital 872-A Quantity: 1 Full Rack, Chasf CD3001-99-0141 Quantity: 1

5 years, 9 months

VT100's

by healyzh＠avanthar.com

Let me start by saying this isn?t intended to start a flame war or anything. I?m genuinely curious. Why is the VT100 so popular? Personally I prefer the VT420?s, though I?d love a VT340/340+ or VT525. I have VT100?s, 320?s and 420?s. I really only use VT420?s. In fact I have one sitting next to my desk in my office hooked to a DECserver 90TL. Zane

5 years, 9 months

Wanted: LTO-5 tapes (used?)

by ethan＠757.org

Looking for used LTO-5 tapes that I can erase and add to my library at home for backing up spinning disk archives. I can use LTO-4 as well but 5 gives the most bang for buck. HMU - Ethan -- : Ethan O'Toole

5 years, 9 months

Which Operating System for my DCC-116 E / Entrex 480 / Nixdorf 620 / Data General Nova 1200 clone ?

by cube1＠charter.net

On 10/4/2017 3:33 PM, Dominique Carlier via cctech wrote: > Hi all > > I start here another topic concerning my research about a new Operating > System for my freshly restored DCC-116 E. > > http://www.zeltrax.com/classiccmp_forum/second_boot/04.jpg > http://www.zeltrax.com/classiccmp_forum/second_boot/02.jpg > > I originally intended to install RDOS on my machine but it seems very > difficult to find the files needed to make a system installation tape. > FIRST: If you have drawings for the DCC, please let me know. I have two of them (long in storage in the house, but they ran when I pulled them from their Unitote/Regitel rack a couple of *decades* ago. There is an RDOS - disk images, available at: http://simh.trailing-edge.com/software.html (Top entry in the list) It is about a 2.5MB disk image. I suggest that you might download SimH and that image, configure SimH as a straight Nova (rather than a /3 or /4) and see if it runs that image OK. If so, there you go! Beyond that, I *might* be able to help, but it will depend on what the status of copyright is on what I have, and whether your system can even run what I do have. I am looking into the copyright part of it - that may take a week or two. (This is something I needed to to anyway). In the meantime: Do you have a way to *write* a tape image? I have an AWS format image of an RDOS starter system. Note, however, that the label on the RDOS starter image I have suggests it may only be appropriate for a NOVA 3 or NOVA 4, so it might not run on your system. So, I'd have to take some time to boot it and try and set up a system for a straight Nova. As this would take several hours, I'm not keen on doing that unless you know that one from SimH will not work for you. I also have some OS and compiler DG floppy images, if you have a DG-compatible floppy setup. Several different operating systems there. Same issue: one would have to see how many are compatible with a straight Nova. I have images of the floppies. Diagnostics for DG systems are notoriously difficult to find. I have a few, in listing format. JRJ

5 years, 9 months

ISO: A&J Micro Drive System 100 docs/software

by derschjo＠gmail.com

Hey all -- Picked up an A&J System 100 drive -- this is an Exatron Stringy Floppy with a serial interface, meant to be used with the TRS-80 Model 100/102. I found what purports to be software for it (see here: http://www.club100.org/library/libups.html) but I haven't found any documentation. It would be interesting to know what the protocol is for talking to this thing. Anyone have any info? Thanks, Josh

5 years, 9 months

Buy Herman's house!

by cctalk＠emailtoilet.com

Mr. Hollerith's house is available. https://www.wsj.com/articles/forgotten-tech-pioneers-d-c-estate-asks-almost- 19-million-1537456578?emailToken=bb675bfcb9f6274f6e8c1b05ae28f2344xumjbywJXs AwzIJYvBg3RJlRIZHZMV6ZNib7ahvK98qrcXxNgBADqPZCBCTTSWKSViH7isyQ4Ra78fLGOUMQtm bpNzGJ7UynZ+6QLN+6DJX7vdRFal288hJJHrIqDHw <https://www.wsj.com/articles/forgotten-tech-pioneers-d-c-estate-asks-almost -19-million-1537456578?emailToken=bb675bfcb9f6274f6e8c1b05ae28f2344xumjbywJX sAwzIJYvBg3RJlRIZHZMV6ZNib7ahvK98qrcXxNgBADqPZCBCTTSWKSViH7isyQ4Ra78fLGOUMQt mbpNzGJ7UynZ+6QLN+6DJX7vdRFal288hJJHrIqDHw&reflink=article_copyURL_share> &reflink=article_copyURL_share

5 years, 9 months

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test-drb September 2018