Other forms: microprocessors
Your computer has a number of microprocessors — each one a very small device with integrated circuits built into it that carry out the computer's logical operations. Because a microprocessor is so small, more than one is needed.
A microprocessor is a chip inside your computer's central processing unit (CPU) or inside your phone or other mobile or smart device. Each one is something like a mini CPU itself, receiving digital signals, carrying out logical and arithmetic operations, and connecting peripherals (electronic equipment connected by cables) and memory chips. The word microprocessor uses the combining form micro-, from Greek mikros, meaning "small."