Intel 4004
The Intel 4004 was part of the 4 chip MCS-4 micro computer set, released by the Intel Corporation in November 1971; the 4004 being part of the first commercially marketed microprocessor chipset, and the first in a long line of Intel central processing units (CPUs). Priced at US$60, the chip marked both a technological and economic milestone in computing.
Source: Wikipedia
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