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101090 discussions

Which DEC machine made use of th pre Flip-Chip board?

by jfoust＠threedee.com

At 04:49 AM 12/21/2018, Mattis Lind via cctalk wrote: >There is an auction for some kind of early DEC module. It appears to be a >bit slice of MB, AR and MQ. There is also a signature by Gordon Bell on the >board. Back in 2006 I asked Gordon Bell to confirm the provenance of a similar board that I bought on eBay in 2001. See below. - John From: "Gordon Bell" <gbell at microsoft.com> To: "John Foust" <jfoust at threedee.com> Yes. I signed the PDP-6, 4 register, bit slice board in the photo. It came from the Computer Museum in Boston where it was sold in their store Let me be clear The Computer Museum (TCM) was NEVER called the Boston Computer Museum... Boston was a temporary home when computing passed through New England, but the city itself gave nothing to it. I don't believe the origin can be traced to any machine, since there were no serial numbers, and the modification level would also be too hard to correlate with any time or place. The Museum got a large number of spares and scraps of all kinds from Digital and it was undoubtedly one of those. To my knowledge, the museum has never engaged in gutting machines for components, although I would happily agree that this is a good idea when we have duplicates and crippled or partial artifacts. As a former collector, founder, and board member of the Digital Computer Museum > The Computer Museum >> current Computer History Museum (a name I deplore and that exists only because of the way the Museum left Boston) I have always been a strong advocate of getting as many artifacts into as many hands as possible, and this includes selling museum artifacts when appropriate. In essence a whole industry of museums and collectors is essential. Incidentally, at one point there was a flame in pre-blog days about the tragedy of the museum selling boards, etc. in which I never engaged. As someone who has contributed about $10 million as well as time, etc. to this endeavor, I can only shake my head... and wonder where those folks were when the museum needed their financial and time support. The lovely ending is that the museum finally has a wonderful home and caring environment with lots of people that support it with love, time, and money. Hope you have or intend to visit it in Mountain View. I trust I have your own financial support and trust you are a member there, too. See <http://www.computerhistory.org/>www.computerhistory.org g -----Original Message----- From: John Foust [mailto:jfoust at threedee.com] Sent: Saturday, February 11, 2006 1:31 AM To: Gordon Bell Subject: PDP-6 board from BCM? Can I confirm the provenance of an item I purchased? It's an S6205D board, signed by "Gordon Bell". Below is a Usenet post that may describe the event at the Boston Computer Museum where it was first sold. Did you sign this board, and do you remember the circumstances? - John Article 1624 of alt.sys.pdp10: Path: shellx.best.com!news1.best.com!sgigate.sgi.com!enews.sgi.com!decwrl!pa.dec.com!nntpd.lkg.dec.com!lead.zk3.dec.com!zk2nws.zko.dec.com!denton.zko.dec.com!amartin From: amartin at denton.zko.dec.com (Alan H. Martin) Newsgroups: alt.sys.pdp10 Subject: Re: Working for PDP-10 En Date: 21 Feb 1996 13:12:21 GMT Organization: DEC Lines: 27 Message-ID: <4gf5nl$kun at zk2nws.zko.dec.com> References: <DMJ1IM.MuJ at network.com> <1996Feb14.164932.1 at eisner.decus.org> <aldersonDMsnx7.5vM at netcom.com> NNTP-Posting-Host: denton.zko.dec.com In article <aldersonDMsnx7.5vM at netcom.com> alderson at netcom.com writes: >In article <1996Feb14.164932.1 at eisner.decus.org> stevens_j at eisner.decus.org >(Jack H. Stevens) writes: ... >>How about trying The Computer Museum, in Boston? (also at http://www.tcm.org) > >Bad idea. The Computer Museum has buried any interesting (read "36-bit") >hardware. They were given, for example, the Stanford Artificial Intelligence >Laboratory PDP-6 in 1984, after it was shown at the Fall DECUS Symposia (for >the 20th Anniversary of 36-Bit Computing). > >It has never been made available for public view; as far as anyone can tell, >it has disappeared from the face of the earth. I'm hazy on dates, but if the 6 in question was donated before the museum's move from MR2 to Boston, you ain't likely to see it in one piece ever again. They had a garage sale of unwanted items in the MR1 cafeteria one Saturday before the move, and were selling a PDP-6 module-by-module. An S6205K "Arithmetic Registers" module (1-bit slice of AR/MQ/MB/<light buffer>) went for $7, autographed by Gordon Bell. I asked him whether read-in mode was implemented as a diode array encoding instructions. He said no, and kindly recommended the 6205 as a particularly central module to have, instead. /AHM -- Alan Howard Martin AMartin at TLE.ENet.DEC.Com

7 years, 8 months

Orphan HP Alphaservers looking for a new home

by rlloken＠telus.net

On Tue, 18 Dec 2018, Tapley, Mark via cctalk wrote: > Not to start a flame war, but I?m well aware VMS supports clustering > pretty well, so I?m puzzled - does anyone know why the Product Description > called out Tru64 rather than VMS or both? Was Compaq de-emphasizing VMS > when that was written? DEC, Compaq, and HP always had separate part numbers and product descriptions for Tru64, VMS, and Windows systems. I know from repeated experiance that you can run either OS on these systems and I also know that all the ES45 hardware is supported by VMS including the video cards. I also know that the DS20 mother boards had hardware on them such as USB controllers and maybe SCSI controllers that were not supported by either OS. -- Richard Loken VE6BSV : "...underneath those tuques we wear, Athabasca, Alberta Canada : our heads are naked!" ** rlloken at telus.net ** : - Arthur Black

7 years, 8 months

P112 redesigned for Z280?

by dave＠661.org

My reply is at the bottom. Please put your reply there too. On Tue, 4 Dec 2018, ben via cctalk wrote: > On 12/4/2018 1:17 PM, Tony Nicholson via cctalk wrote: >> Hello David >> >> I saw your posting on the cctalk mailing list regarding RSX180. >> >> It is Hector Peraza that's been tinkering with this. He intends making the >> full source-code available via SourceForge or GitHub but is still working >> on preliminary web pages and documenting etc. No doubt he will provide you >> with more details. >> >> I've been tinkering with a Z280 system designed by Bill Shen (the Z280RC on >> the RetroBrew web site at >> https://www.retrobrewcomputers.org/doku.php?id=builderpages:plasmo:z280rc ) >> and have contacted Hector about porting it to the Z280. > > That is the easy part, where is the 99 cent dumb terminal to go with it? > Ben. That's got me thinking... Suppose I redesign the P112 board to take a Z280 CPU. Would you guys go for it? I'd like to come up with a way to use a socketed CPU or put a surface-mounted chip on a carrier board to allow greater versatility with playing with different Zilog chips. -- David Griffith dave at 661.org A: Because it fouls the order in which people normally read text. Q: Why is top-posting such a bad thing? A: Top-posting. Q: What is the most annoying thing in e-mail?

7 years, 8 months

Want/Available list

by jnc＠mercury.lcs.mit.edu

> From: Chris Hanson > Do you mean you would prefer to visit a web page to read the latest > posts on cctalk rather than have them delivered to you via email? Hey, that's how I read CCTalk: http://www.classiccmp.org/pipermail/cctalk/ I don't want all this cruft clogging up my inbox. Noel

7 years, 8 months

8-Update

by aek＠bitsavers.org

On 12/15/18 11:36 PM, Rod G8DGR via cctalk wrote: > However I began to think would it be possible to create a close copy of an ?8/e out of ?modern parts. Redoing the CPU in obtanium TTL would be desirable.

7 years, 8 months

Want/Available list

by guykd＠optusnet.com.au

At 10:50 PM 20/12/2018 +0100, you wrote: >> How about you not join a nearly 20 year old mailing list and start >> insulting people, most of which have probably been in the computer >> industry longer than you've been alive? > >insulting? I posted a link to a project just to share the fun and I >got suggested to drop it, which is extremely rude and irritating. >Besides, I suggest and offered free space when here you are all >claiming that it's difficult to follow posts about things and parts, >and yet again I got a figurative finger > >so don't try to drag me down on your cliche' You should relax. Take it easy. Your http://www.downthebunker.xyz/ site has a lot of promise, but starting any such project is hard. Plus retrocomputing definitely has a relatively small interest group, so don't expect a huge wave of users. But two things are not helping. One is your site's idiosyncratic nomenclature. From the domain name, title logo, 'create account', much seems chosen to be more clever than informative. I'd suggest being more boring but helpful. You. I've only read 2 or 3 posts by you, and already get the impression you are too sensitive and ready to get your back up. You're here in a forum of mostly tetchy old greybeards. (I'm one.) To quote your own site's user agreement: R E S P E C T ! No one here intends to insult you. But few are going to ignore a hostile and argumentative attitude. Chill. The text you replied to above is NOT a 'figurative finger', it's wise advice, just phrased in a direct manner. You are creating conflict where there was none. You should know the rule with online discussion: there's no emotive feedback, and written text often doesn't come out exactly as intended. So allow a much wider margin of acceptance than in a f2f conversation. tl;dr: Chill. Guy

7 years, 8 months

TSC Assembler?

by microtechdart＠gmail.com

Hi, all. Would anyone here happen to have access to the original early 80s binary files to to run TSC Assembler? http://bit.ly/2rLsORe I'm looking for the vintage software that this document refers to: TSC Floating Point Package by Technical Systems Consultants. I know there's a fair number of more modern assemblers that will accomplish essentially the same thing (LWASM, A09, etc), but I was curious to see, and play with, the old-school version of this on one of my vintage machines... Thanks, everyone! AJ -- Thanks, AJ Palmgren

7 years, 8 months

hp 9816 keyboards

by emu＠e-bbes.com

Always wanted to have one, but they never come with a keyboard :( Anybody ever made a converter to PS/2 for it? So it could be used, until I find a REAL keyboard? Or will the keyboards never show up? Then a PS/2 converter is probably a smart thing anyway? Cheers & thanks!

7 years, 8 months

◾NSC 8477 Was: New takes on XT-IDE, a new FDC, and a new CM/S GAL

by cctalk＠ibm51xx.net

>No, the CCIV initially had a plain-jane Intel rev 0 82077AA in a 68 pin >PLCC. After Intel "improved" the chip to the 82077AA-1, FM ceased to >work. Fortunately, as I mentioned NSC 8477 is a plug-in replacement, >with the exception of not needing an extra external cap (the pin is NC >on the National chip). Chuck, I read through the thread at VCF and see that the 8473 is not drop-in swappable with the 8477. One more question on the 8477 do you know if there is a significant difference between the 8477AV and the 8477BV revision? Thanks. -Ali

7 years, 8 months

Sperry, Focus, IBM, and Chicony keyboards added

by sales＠elecplus.com

7 years, 8 months

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