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Chiefish
Joined: 23 Sep 2007
Posts: 2153
Location: Northwest N.J. U.S.A
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 Posted: Sat Oct 25, 2008 8:31 am Post subject: Set of Four Phase Chips |
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Here is a set of four phase chips, all legs are straight and in tact.
$35 sold
Enjoy 
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Last edited by Chiefish on Sat Oct 25, 2008 4:20 pm; edited 1 time in total |
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kosmokrator
Joined: 03 Jul 2008
Posts: 4085
Location: Athens-GR
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| Posted: Sat Oct 25, 2008 2:33 pm Post subject: |
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any info about the chips??im interested if i have info about what may be.....
thnx |
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Chiefish
Joined: 23 Sep 2007
Posts: 2153
Location: Northwest N.J. U.S.A
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| Posted: Sat Oct 25, 2008 2:35 pm Post subject: |
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I believe the large chip 91130121 is a I/O controller, and the small one 91100101 is ram. I dont know much about them either.
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kosmokrator
Joined: 03 Jul 2008
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Location: Athens-GR
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| Posted: Sat Oct 25, 2008 2:40 pm Post subject: |
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u dont know even the manufacturer?
nice chips....but i need some info for my collection...to add it
if anybody know something much aperciated!
thnx.... |
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doccybrown
Joined: 03 Oct 2005
Posts: 1736
Location: Germany
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| Posted: Sat Oct 25, 2008 3:15 pm Post subject: |
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| kosmokrator wrote: | u dont know even the manufacturer?
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Manufacturer is "Four Phase Systems"!
I have a big IV-chip with "MC-5"-print in
my lot, I guess this is the central processor
of whatever system.
Alas there`s not much info available about
Four Phase Systems.... 
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kosmokrator
Joined: 03 Jul 2008
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Location: Athens-GR
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| Posted: Sat Oct 25, 2008 3:24 pm Post subject: |
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hhmmmm...nice...
ok ill take the set man!!!
thnx  |
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kosmokrator
Joined: 03 Jul 2008
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Location: Athens-GR
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Chiefish
Joined: 23 Sep 2007
Posts: 2153
Location: Northwest N.J. U.S.A
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| Posted: Sat Oct 25, 2008 4:20 pm Post subject: |
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Yea im sorry Kosmo, i put that in the title , but left of the systems part. The rest is as Doccy says 
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isa-d
Joined: 16 Aug 2006
Posts: 2984
Location: Italy
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| Posted: Sun Oct 26, 2008 3:40 am Post subject: |
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| Quote: | | i found this nice pdf about the computer system of fps |
You are right, these 4 chips are part of the System IV/70 CPU card. The complete card contain 12 chips and the CPU is the AL1 chip, the only image available shows a 40 pin dip, but the AL1 isn't a really CPU but a sort of bit-slice like the AMI 7200/7300 from the same era, so you can see in another image a CPU card buid with 12 of this AL1 and the rest of the chipset (Roms, Ram, ecc.) on other cards.
Four Phase won a dispute with Intel for the first single chip processor built and in a dimostration with a single AL1 dated 1969 performed a complete digital processing like we know now. |
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Gil Carrick
Joined: 01 Feb 2009
Posts: 14
Location: Arlington, TX
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| Posted: Sun Feb 01, 2009 1:23 am Post subject: |
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I worked for Four Phase from about 1974 to 1980. I also wrote and sold software to Four Phase customers for another 10 years of so. I am now the Director of the Arlington Museum of Information Technology. We have one of possibly 5 Four Phase systems left in the world. Most were melted down for gold. Interestingly enough, the AL1 chip has been deemed to be the first microprocessor, predating the Intel 8008.
http://www.interesting-people.org/archives/interesting-people/200205/msg00072.html
So you have sold/bought quite a prize. Here are some pictures of our Four-Phase: http://amit-tx.org/fourphase.shtml
This is a later model (IV/90) and does not incorporate the AL1 chip. We do have some boards from the IV/70. In the page referenced above we have plugged the older board into the IV/90 to turn it back into a IV/70 for debugging it. If you are interested I can take a picture of one an put it on the web site so you can see what it looked like.
For more information search for Boysel and AL1.
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A. G. (Gil) Carrick, Director
Museum of Information Technology at Arlington
1012 Portofino Drive
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817-994-9213 (cell) - gil.carrick (Skype) http://mit-a.com/ |
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Gil Carrick
Joined: 01 Feb 2009
Posts: 14
Location: Arlington, TX
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| Posted: Sun Feb 01, 2009 1:33 am Post subject: |
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For some reason, when I was looking before, I didn't see the chips you were discussing. The Ram-9 chip is indeed a MOS memory. It is interesting because it is a dual port chip. The video on a Four Phase was dynamically generated out of fixed memory locations (much like early versions of the IBM PC) with either 48 or 81 character lines and 12 or 24 lines on the screen. It could support up to 32 terminals at the same time. Keyboards were handled separately.
The I/O chip is indeed an I/O controller. If you are interested, let me know and I will look it up and see exactly what part of the I/O system it was. Three of the RL5(?) chips (can't see the image now & forgot the exact number) were "random logic" and were teamed up with three AL1s (the arithmetic and logic chip), some ROM and an optional "Decimal Instruction" chip - the latter one of the biggest chips I have ever seen. those 6 or 7 chips made up the CPU card.
So, your deal is not quite as significant as I had thought - the AL1 is the famous chip.
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A. G. (Gil) Carrick, Director
Museum of Information Technology at Arlington
1012 Portofino Drive
Arlington, TX 76012
817-994-9213 (cell) - gil.carrick (Skype) http://mit-a.com/ |
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Gil Carrick
Joined: 01 Feb 2009
Posts: 14
Location: Arlington, TX
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| Posted: Sun Feb 01, 2009 1:54 am Post subject: |
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Last time, I promise. It was the RL5 and I see that it was not on the CPU card. It was used on the character generator card in combination with a ROM chip to generate the characters on the video. (There were no graphics.) I couldn't find the I-O 12 in the schematics. But it is a fairly low number in the I-O set, so it had to be a basic function. I just couldn't find it with a quick search.
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A. G. (Gil) Carrick, Director
Museum of Information Technology at Arlington
1012 Portofino Drive
Arlington, TX 76012
817-994-9213 (cell) - gil.carrick (Skype) http://mit-a.com/ |
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kosmokrator
Joined: 03 Jul 2008
Posts: 4085
Location: Athens-GR
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| Posted: Sun Feb 01, 2009 2:53 am Post subject: |
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thnx gil!!!!
now feel much lucky i have this chips in my collection!
thnx also for the info about RL-1 chip!
much aperciated and well come to the forum! |
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isa-d
Joined: 16 Aug 2006
Posts: 2984
Location: Italy
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| Posted: Sun Feb 01, 2009 3:02 am Post subject: |
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| Many thanks for these information!! |
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johnorun
Joined: 04 Apr 2008
Posts: 3364
Location: Chicago, IL- US
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| Posted: Sun Feb 01, 2009 3:20 am Post subject: |
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We look forward to hearing more from you, Gil.
Expertise about certain vintage processors is hard to come by and your input is most welcome!
Can you also post info. about the Arlington Museum? |
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