Page "Intel 4004" Paragraph 44
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* Busicom Calculator Engineering Prototype ( 1971 ).
( Gift of Federico Faggin to the Computer History Museum, Mountain View, CA ).
The CHM collection catalog shows pictures of the engineering prototype of the Busicom 141-PF desktop calculator.
The engineering prototype used the world ’ s first microprocessor to have ever been produced.
This one-of-a-kind prototype was a personal present by Busicom ’ s president Mr. Yoshio Kojima to Federico Faggin for his successful leadership of the design and development of the 4004 and three other memory and I / O chips ( the MCS-4 chipset ).
After keeping it in his home for 25 years, Faggin donated it to the CHM in 1996.
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