test-drb

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101090 discussions

by sellam＠vintagetech.com

An NCR 3400 is available in Cary, North Carolina. See below. Please respond to the original sender. Reply-to: terry at eurosoftinc.com ---------- Forwarded message ---------- Date: Thu, 11 Dec 2008 13:45:59 -0500 From: Terry Stanfield <terry at eurosoftinc.com> To: donate at vintage.org Subject: NCR system 3400 We have an old NCR system 3400 here in our office that I would be very sad to send to the dumpster. Would you be interested? Unfortunately we are on the east coast. Thanks, Terry Stanfield Eurosoft, Inc., 1628 Old Apex Road Cary, NC 27513 (919)468-3003 ext 223 http://www.eurosoftinc.com --- -- Sellam Ismail Vintage Computer Festival ------------------------------------------------------------------------------ International Man of Intrigue and Danger http://www.vintage.org [ Old computing resources for business || Buy/Sell/Trade Vintage Computers ] [ and academia at www.VintageTech.com || at http://marketplace.vintage.org ]

17 years, 5 months

vintage CPU instruction sets

by jules.richardson99＠gmail.com

All this talk of CPUs got me back onto thoughts of homebrew CPU design, which has been a stalled project of mine for the last year or so. So, has anyone come across a good online resource which compares vintage CPU instruction sets? It'd be useful to see what 'core' instructions* were most common back in the day and use that as a basis for my own homebrew effort; I think I can probably rustle up things like hardware multiply and divide, but really don't want an all-singing solution. KISS and all that. :-) * My hands-on knowledge is pretty much limited to Z80, 6502, 68000 and x86, and it'd be nice to go a little further back in time - but hopefully without having to download and digest many different databooks! cheers Jules

17 years, 5 months

Edmund Berkeley question

by evan＠snarc.net

Anyone know when Berkeley Enterprises closed?

17 years, 5 months

8008 chips

by ajp166＠bellatlantic.net

> >Subject: Re: 8008 chips > From: "William Donzelli" <wdonzelli at gmail.com> > Date: Mon, 15 Dec 2008 15:28:41 -0500 > To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk at classiccmp.org> > >> I have a bag of 35 NOS type "MF1103P" dated 722x, 18-pin plastic DIP, gold-plate >> pins, made by Microsystems International Ltd. (a briefly-existent Canadian >> chip maker). I believe these were 2nd-sourced 1103's, as MIL also made an >> MF8008 and MF1702. >> >> I also have a gold-capped C8008. One idea would be to make a period-style >> 8008 system with all of it. >> >> If I sell them can I retire to Monte Carlo instead? > >You could probably get a nice plane ticket. > >There is a "missing link" Intel RAM that many chip guys lust for. I do >not recall the number - 210something. The 1101 256 byte static ram. Later there would be the 2102 (1kx1) and 2102 256x4 that were important to small computeres. The 1103 was dynamic and while cheaper it was also hard to work with due to refresh and interface needs. Allison > >If I look thru my records I can probably remember, but I have too many >things to do right now. > >-- >Will > >--

17 years, 5 months

8008 chips

by doc＠mdrconsult.com

First, I know approximately nothing about old Intel chips, so forgive any incoherence. A friend of mine just came across a couple of Intel 8008 chips. Apparently, some ebay sellers think they're solid gold. http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=260099837541 As far as we can tell, that's what Mel has. Anyway, I told him I'd try to find out what it's actually worth and whether anyone here is willing to pay whatever's reasonable. He also has some later 8008s without the gold cap. Doc

17 years, 5 months

1Mx4 DRAMs (was Re: 8008 chips)

by ethan.dicks＠gmail.com

On 12/15/08, Keith <keithvz at verizon.net> wrote: > William Donzelli wrote: > > > ...Why dont people collect i1103's ? > > > > They do. Some of the early RAM fetches HUGE money. Multiple hundreds > > for some of the real raries. > > Tell me about it. I've been looking for 1Mx4-bit 20-pin DIP DRAMs for > years. The closest I've come is some 26/20-pin surface mount. I have, too... I need 4 of them to upgrade my Rejuvenator in my Amiga 1000 from 1M of CHIP RAM to 2M of CHIP RAM (that and a "Fatter Agnus", but those aren't as difficult to find as the RAM itself). <http://amiga.resource.cx/manual/Rejuvenator_AgnusInstall.pdf> It's never been critical, so I've never bothered, but with the Sprit InBoard and the Starboard on the side (w/StarDrive SCSI interface), it would be a nice boost. Worst case, if I ever did start using my A1000 and really, really wanted it, I suppose I could cobble a daughter card up that would plug into the RAM bank on the Rejuvenator, but that's a lot of work for a very optional upgrade. -ethan -ethan

17 years, 5 months

cctalk Digest, Vol 64, Issue 42

by wbblair3＠yahoo.com

> I wonder if a really workable counterfeit could made from > other than a different chip with new paint? Hopefully that won't > happen, but with this kind of money involved who knows. There are discussions of this in CPU collector forums often. If the price is high enough, it's well worth it (to thieves). China appears to be a significant source for counterfeited chips, mainly "Engineering Samples," "Prototype" and "Confidential" supplementary-marked chips. And I can imagine that somewhere along the line, there were a whole bunch of ICs with exactly the same external appearance as the 4004 that could be remarked. If the buyer doesn't functional check the chip or open it up for die inspection, who'd know other than the thief who sold it?

17 years, 5 months

DEC system module (PDP-1/4/5/6) and CDC 1604/160A-type boards on eBay

by wmaddox＠pacbell.net

There is a DEC system module (PDP-1/4/5/6 era) in this lot, as well as several Control Data modules of the sort used in the 1604 and 160A. These are nice display pieces, but I'm well-stocked on both accounts, so I'm going to pass on this one. With 6 hours to go, the price is at $5 with no bids. --Bill http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=270315494162 Lot of 8 Vintage Circuit Boards - 1960s

17 years, 5 months

Altos 580-10A on eBay

by michaelgreen42＠comcast.net

System is in excellent condition overall and comes with several books and even some software. http://cgi.ebay.com/RARE-Altos-580-10A-Computer-ORIGINAL-DOCS-AND-SOFTWARE_W 0QQitemZ120350775271QQcmdZViewItemQQptZLH_DefaultDomain_0?hash=item120350775 271&_trksid=p3286.c0.m14&_trkparms=72%3A1234|66%3A2|65%3A12|39%3A1|240%3A131 8|301%3A1|293%3A1|294%3A50

17 years, 5 months

68k homebuilts

by slawmaster＠gmail.com

Hi everyone As a 4th year computer engineering student with a part time job, I definitely have too much time on my hands, so I've been thinking about doing something like building my own computer. I remember playing with the 68k SBCs back in my assembly class, so I thought something from that family might be an interesting choice. It's ambitious, but ideally I'd like to do 16/32 bits and a few megs of memory. Have any of you built something like this? I'm looking for links to project pages, shared experiences, and advice on what processor to use. Reminiscence is welcome too, if you have fond memories of such a thing :) Thanks John Floren -- Ph'nglui mglw'nafh Cthulhu R'lyeh wgah'nagl fhtagn

17 years, 5 months

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