Intel 8080
From Computer History Wiki
The Intel 8080 was the microprocessor CPU that was popularized by CP/M machines with the S-100 bus; it was the first 'open' home computer standard before the introduction of the IBM PC. The 8080 was an evolution of the Intel 8008, the first ever microprocessor; the Intel x86 line developed from the 8080.
The 8080 design was licensed out to various other companies for fabrication, and the design was even stolen to be manufactured in Poland, East Germany & Russia.
The Zilog Z80 CPU was based on the 8080, and provides a superset of the 8080 ISA.
