Intel 4004

• It was invented in 1971 by Federico Faggin, Tedd Hoff, and Stanley Mazor.
• The Intel 4004 was first used as a Japanese calculator.
• The Intel 4004 was the very first microprocessor and was the first microprocessor to use the metal-oxide-silicon (MOS) process.
• It has a 4-bit central processing unit.
• A cool fact about the Intel 4004 was that is used in technology all around you like ATMs and calculators.