A microprocessor is a compact integrated circuit that serves as the central processing unit (CPU) of a computer system. It executes instructions from computer programs, performing basic arithmetic, logic, control, and input/output operations specified by the instructions. Microprocessors are widely used in various embedded systems, including personal computers, smartphones, and other electronic devices. They are essential for executing software applications and controlling hardware components, making them crucial in modern technology. The integration of microprocessors in devices has profoundly impacted computing speed, efficiency, and overall functionality.