Is the abbreviation for Control Processing Unit.

This is the microprocessor. It is made up of the control unit combined with the arithmetic unit. The aim of the control unit is to extract the instruction to be executed and the data needed to execute this instruction from the central memory, to establish electrical connections in the arithmetic unit and logic, and to run the processing of this data in this unit. We can sometimes find ROM or RAM memories included in the same chip, or even I/O interfaces or buffers.