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wepwawet
Joined: 18 Mar 2004
Posts: 3019
Location: Seligenstadt - Germany
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 Posted: Tue Mar 13, 2007 5:51 pm Post subject: Flat packs |
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Hi,
holding these in my hands I am simply fascinated they are so small!
Does anybody else (yes, Chris, show all you have!) collect flat pack ICs?
Does anybody have a glass type from Minuteman I or a TI prototype?
I'd love to see a better picture of a SN502 than those I googled:-) |
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chip68
Joined: 19 Oct 2004
Posts: 1024
Location: Central Pennsylvania
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| Posted: Sat Mar 17, 2007 12:51 am Post subject: |
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NOT flat-packs, but interesting packages nonetheless - circa 1968:
(These are power amplifiers, and the tab was used for heat-sinking.)
- CMW |
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wepwawet
Joined: 18 Mar 2004
Posts: 3019
Location: Seligenstadt - Germany
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| Posted: Sat Mar 17, 2007 2:30 am Post subject: |
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impressive:-)
_________________
You may use the photos I have posted here under CC BY-NC-SA license. |
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chip68
Joined: 19 Oct 2004
Posts: 1024
Location: Central Pennsylvania
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| Posted: Sat Mar 17, 2007 10:54 am Post subject: |
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Thanks! I see yours are mil-spec parts (54xx). Here's some more early TI stuff:
- CMW |
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D.8080
Joined: 03 Apr 2006
Posts: 1474
Location: Italy
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| Posted: Sat Mar 17, 2007 11:31 am Post subject: |
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wepwawet
Joined: 18 Mar 2004
Posts: 3019
Location: Seligenstadt - Germany
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| Posted: Sat Mar 17, 2007 1:27 pm Post subject: |
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I am currently reading all I can get about the AGC, and in a summary by Eldon C. Hall from January 1972 (Reliability history of the apollo guidance computer) he mentions the phrase CPU in a manner that shows he was used to talk about CPUs.
I am curious if I find an earlier document using the acronym CPU.
Last edited by wepwawet on Sat Mar 17, 2007 4:28 pm; edited 1 time in total |
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unte13
Joined: 05 Dec 2006
Posts: 106
Location: Marseille, FRANCE
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| Posted: Sat Mar 17, 2007 4:02 pm Post subject: |
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chip68
Joined: 19 Oct 2004
Posts: 1024
Location: Central Pennsylvania
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| Posted: Sun Mar 18, 2007 4:53 pm Post subject: |
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| wepwawet wrote: | | I am curious if I find an earlier document using the acronym CPU. |
AFAIK, that acronym has been in use since the 1950s.
- CMW |
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wepwawet
Joined: 18 Mar 2004
Posts: 3019
Location: Seligenstadt - Germany
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| Posted: Sun Mar 18, 2007 5:15 pm Post subject: |
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yeah, why not!?!
but this is like archeology via internet.
find a documet of that time naming CPU.
i don't know how old you are, i am 40, so that was long before i was born (the flat packs above are dated the year i was born). everything of that time is older than me but just a few years.maybe that is a reason why i like that stuff much more than modern.
chips that were used when i started using computers myself aren't interesting to me, just some games. lol
what are the flat packs on the picture with the box?
i'd like to get a three input nor gate, the chip that was the only ic in the agc proto and mainly in all later.
i also wonder if there are other members here that can contribute more than applause and shocking:-)
hey, who has a glass flat pack??? |
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wepwawet
Joined: 18 Mar 2004
Posts: 3019
Location: Seligenstadt - Germany
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wepwawet
Joined: 18 Mar 2004
Posts: 3019
Location: Seligenstadt - Germany
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mistertransistor
Joined: 16 Mar 2007
Posts: 12
Location: Purley, England
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| Posted: Mon Mar 19, 2007 2:39 pm Post subject: early chips (pre-Intel) |
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Hi there (again),
yes I too am interested in flatpacks, amongst other. See my page
http://homepages.nildram.co.uk/~wylie/ICs/monolith.htm
Regards
Andrew
BTW I'm astonished at the start of this thread. The term CPU is not restricted to ICs - discrete component CPUs existed long before Intel did. |
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wepwawet
Joined: 18 Mar 2004
Posts: 3019
Location: Seligenstadt - Germany
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| Posted: Mon Mar 19, 2007 3:41 pm Post subject: Re: early chips (pre-Intel) |
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| mistertransistor wrote: | | BTW I'm astonished at the start of this thread. The term CPU is not restricted to ICs - discrete component CPUs existed long before Intel did. |
Here are maaany threads around the question "What is a CPU?" or "What was the first CPU?" And mostly we are talking about a single chip solution that was able to execute different programs depending on data input (by ROM and other sources).
BUT SINGLE CHIPS!
ok, the 4004/4040 needed at least the 4003 in addition to ROM and RAM;-)
Discrete designs are not part of the discussion.
Not a problem for me but we should take care of the fact that there is a difference inbetween talking about CPUs since the 4004 (or 486 for the modern collectors:-) and earlier designs that had units called CPU as well as others ALU or Input/Output.
Hehe, now, when we are three maybe we can open a new section "vintage cpus older than vintage cpus" lol
To be serious, i can understand that collectors have to decide a point where they have to start. It's a question of interest, money and/or knowledge. I don't claim to have any knowledge about vintage chips besides that I get here and wherever I search the internet. But the deeper I get into that old stuff the more I like it:-)
... my main problem is that, I guess, it is much much harder to get some thousand three-input NOR gates to rebuild an AGC proto CPU than a grey MCS-4 ES set. And if I ever get them I will not have the time and knowledge to do it:-(
Last edited by wepwawet on Mon Mar 26, 2007 9:38 am; edited 1 time in total |
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tlccomp
Joined: 11 May 2006
Posts: 1212
Location: Southeast Wisconsin, USA
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| Posted: Mon Mar 19, 2007 3:58 pm Post subject: Re: early chips (pre-Intel) |
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| mistertransistor wrote: | Hi there (again),
yes I too am interested in flatpacks, amongst other. See my page
http://homepages.nildram.co.uk/~wylie/ICs/monolith.htm
Regards
Andrew
BTW I'm astonished at the start of this thread. The term CPU is not restricted to ICs - discrete component CPUs existed long before Intel did. |
Wow, very nice & informative site  |
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wepwawet
Joined: 18 Mar 2004
Posts: 3019
Location: Seligenstadt - Germany
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| Posted: Tue Feb 26, 2008 3:51 am Post subject: 1955! |
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I had some more time to go through those old IBM documents.
Now back in 1955!
See page 5, "Central Processing Unit" and page 10, "CPU"
http://archive.computerhistory.org/resources/text/IBM/IBM.705%20EDPM.1955.102646306.pdf
This kind of illustrating and using the phrase "Central Processing Unit" on page 5, later again this phrase in the headline, the phrase with "(CPU)" in the body and from then the only use of "CPU" looks like an introduction of this acronym to normal wording.
But as this is an official brochure this can't be the first time of use, maybe the first official.
Now I need some early internal IBM docs:-)
btw, the earliest similar phrase, "Computer processing" I have found so far is in a Remington doc from 1951 about the UNIVAC file computer. |
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