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Snotnose [soylentnews.org] writes:

Everybody knows Intel's 4004, designed for a calculator, was the first CPU on a chip. Everybody is wrong. [tomshardware.com]

For a long time, what is now considered to be a prime candidate for the title of the ‘world’s first microprocessor’ was a very well-kept secret. The MP944 is the inauspicious name of the chip we want to highlight today. It was developed to be the brains behind U.S. Navy’s F-14 Tomcat’s Central Air Data Computer (CADC). Thus, it isn’t surprising that the MP944 was a cut above the Intel 4004, the world’s first commercial microprocessor, designed to power a desktop calculator.

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