Intel 4004

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The Intel 4004 is an early single chip computer chip, from 1971, and a lineal ancestor of the Pentium family of computer chips.[1]

intel 4004 specifications[1]
specification value
number of transistors 2,300 transistor on die
clock speed 740 hertz
instruction set 46 instructions
Registers 16 4 bit registers or eight bit registers.
introduction date 1971
memory 1k data memory, 4k program memory

The computer had separate data and memory spaces. The maximum addressable memory was 4 kilobytes.[1]

According to the History of Computing website the chip "it is widely considered to be the world's first commercial single-chip microprocessor."[1]

References