CPU - Central Processing Unit, Is the core of every computer and any electronic device that does any type of calculation.

CU - Control Unit. Controls all the data transfer inside the microprocessor, and verifies that there are no errors.

ALU - Arithmetic Logic Unit. The part where all calculations involving integer numbers only are processed.

CU - Control Unit. Controls all the data transfer inside the microprocessor, and verifies that there are no errors.

ALU - Arithmetic Logic Unit. The part where all calculations involving integer numbers only are processed.