There are very few engineers who wouldn't consider the POWER1 and POWER2 from IBM to be microprocessors. They are also multi-chip units. The POWER1 was multipl

There are very few engineers who wouldn't consider the POWER1 and POWER2 from IBM to be microprocessors. They are also multi-chip units. The POWER1 was multiple chips on a PCB and the POWER2 was multiple dies on a single module (like modern AMD and Intel CPUs, but 30 years ago). The word "microprocessor" was first used in 1968 by Viatron Computer Systems to describe its System 21, which had a multi-chip CPU spread across two boards.