[BC] INTEL 4004

[Phil Alexander]

On 5 Jul 2005 at 19:24, Jeff Johnson wrote:

> 
> >  I found some unused Intel 4004 CPU chips not too long ago.
> >Dave Joseph, CBRE CBNT
> >W7AMX
> 
> What was the origin of the 4004 enumeration for the first microprocessor?? 
> Was it the 4004 years B.C.E. that the world was created??

LOL Not quite that simple Jeff. The 4004 handled instructions by the nibble
rather than by the half byte or byte, and ISTR had a data path limited to 
four bits also. I believe the first 8 processor with 8 bit instruction set
was the 8008 which was followed by the 8080. The big use of the 4004 was in
clock circuits and some calculators.

Phil Alexander, CSRE, AMD
Broadcast Engineering Services and Technology 
(a Div. of Advanced Parts Corporation) 
Ph. (317) 335-2065   FAX (317) 335-9037





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