test-drb June 2017

test-drb@ccmp.vtda.org

19 participants
24 discussions

by dm561＠torfree.net

An interesting 3 hours on PBS last night: - 'Steve Jobs - One Last Thing': No description necessary. - 'Long Distance Warrior': McGowan/MCI's David & Goliath battle with AT&T and disastrous merger with Worldcom. - 'Digital Man/Digital World': Ken Olsen/DEC's growth and ultimate decline. (No doubt everyone here except myself had already seen this one ;-) Interesting comparison of the different styles and personalities of three men who profoundly influenced the tech world of today and their companies. Thoroughly enjoyed it. m

6 years, 8 months

Vaxstation 3100 of odd sort on epay

by jwsmail＠jwsss.com

This might be a tempest or shielded vaxstation? Anyone speculate or know for sure. The vendor may have these mixed in as equivalent to their other vaxstations. If you search for "DEC vax VS42A-BN" you end up back at the vendors listing for the ones with plastic covers. I didn't turn up any info yet, not hoping to. but the thing has what appears to be optical, and a huge connector which may be shielded SCSI on the back. I can't tell from the front, but there may be a hatch to allow it to be opened and a floppy inserted, not sure from the photos. VINTAGE-RARE-DEC-DIGITAL-VAXSTATION-3100-PF-VS42A-AA-RF-VS42A-BN-COMPUTER-SYSTEM/ http://www.ebay.com/itm/370930391341 Kind of an interesting device. I looped back into the vendors listings to this auction for the plastic topped version, by the way VINTAGE-DEC-DIGITAL-VT1300-VAXSTATION-VS42A-BB-COMPUTER-SYSTEM-VT-1300-TERMINAL/ http://www.ebay.com/itm/370912245260 It is badged VT-1300 so may not be a vaxstation. And the other box may be one of the VT-1300's that is tempest or shielded. thanks Jim

6 years, 10 months

Tek 40xx computer users

by rdawson16＠hotmail.com

I bought the Tek 4051 on ebay today; Jason brought it to my house and it works perfectly, with about a half hour of programming instruction my 12 old daughter was plotting a cat face. https://www.facebook.com/Thelma.Franco/videos/10154277153852670/ I would like to get in touch with other users of this first personal computer, and find additional resources. Do you know where I can find an archive of BASIC programs for this? Has anybody built plug in cards in the back, mine came with a realtime clock and a "file manager", I do not know what that one does. I have some Tek scopes with IEE-488, and I will see if I can get the IEEE interface working. There was a DC300 tape in the machine: biorithm craps blackjack artillery tanks weatherwar The belt is broken in the tape, I have ordered some new DC300's and will transplant the tape. Any resources will be welcome! Randy

6 years, 11 months

DS12887 pcb substitute with battery

by cctalk＠ibm51xx.net

Jon, Then why not use a dip compatible version of the DS chip? I mean yes this allows for switchable battery which is very nice but SMT soldering is not for everyone. I wonder if there is a way to determine if there will be BIOS issues by switching the DS12887? -------- Original message -------- From: Jon Elson <elson at pico-systems.com> Date: 1/22/17 9:16 AM (GMT-08:00) To: General at classiccmp.org, "Discussion at classiccmp.org:On-Topic and Off-Topic Posts" <cctalk at classiccmp.org> Subject: Re: DS12887 pcb substitute with battery On 01/22/2017 10:07 AM, Ali wrote: > Al, > I thought the problem with switching these chips was that part of the ROM code was embedded in them? I.e. it isn't just an issue of battery? Am I wrong? If I am then why not use one of the replacement chips that are available? > These don't have a lot of memory on them.? many early PCs stored some config info there, but generally the BIOS can reconstruct it if it isn't there.? I suppose there is a possibility that random data in the CMOS memory could cause the BIOS to try to use unavailable features and hang.? I don't think anybody put actual executable code in there. Jon

7 years

Pine (was: Re: cctalk Digest, Vol 17, Issue 20)

by fred＠MISER.MISERNET.NET

> Date: Thu, 19 Nov 2015 21:41:53 -0500 (EST) > From: ethan at 757.org > Subject: Re: Could someone make this topic go away? > Message-ID: <Pine.LNX.4.64.1511192141030.32673 at users.757.org> > Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed > > Am I the only one left using Pine!? > > I get odd looks when I'm checking email from my cell phone. No you are not. I use (al)pine on my OpenVMS system here as well as my main Linux host. I have mail going back to 2004 here and since 1996 at another public access Unix host I use. It's great when I'm out of town and can ssh in from my phone and check the mail. :) Pine does most everything I need without having to worry about malware, phishing, etc ... the beauty of text. Fred

7 years, 1 month

For Sale: (2) Boxed Macintosh 512K Enhanced and (2) Boxed Macintosh Plus

by sellam.ismail＠gmail.com

I have these 4 boxed Macs, all being sold separately. Full details and link to video are here: http://www.vcfed.org/forum/showthread.php?58094-Boxed-Early-Macintosh-Sale-… Thanks! Sellam

7 years, 6 months

For Sale: Osborne 1 (original tan/black case)

by sellam.ismail＠gmail.com

I have an Osborne 1 (the original tan/black case model) for sale. Full details are here: http://www.vcfed.org/forum/showthread.php?58093-Osborne-1-(Original-Tan-Bla… Thanks! Sellam

7 years, 6 months

What is this bus?

by mhs.stein＠gmail.com

I have a bus backplane here, very similar to an S100 backplane but the 2x50 connectors use .1 in spacing instead of .125 and the supply voltages are regulated +5 and +/- 12V. I also have the power supply; what are they from? TIA, m

7 years, 6 months

I hadn't made the connection before

by dkelvey＠hotmail.com

I was looking at an old GI catalog and casually noting the CP1610 that was most of a PDP11 processor. I did some more web surfing and noticed that the Intellivision game machine used this chip. It just never dawned on me that they used this processor. I see that one could even get a keyboard for these. Dwight

7 years, 6 months

RL02 to image file

by jcwelch＠hal-pc.org

Hello, Does anyone have a setup to image RL02 packs to a pc file that can be mounted with simh? I have a couple of dozen I would like transferred because I am downsizing. I have a bunch of gear I can trade, also rum and/or dollars. Hopefully you are close to Houston. Sincerely, John Welch

7 years, 6 months

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test-drb June 2017