Central unit of process or CPU

microscopic circuit that interprets and it executes instructions. The CPU is in charge of of the control and the process of data in the computers. Generally, the CPU is a microprocessor manufactured in a chip

the CPU communicates through a group of circuits or connections called bus. The bus connects the CPU to the storage devices (for example, a hard disk), the entrance devices (for example, a keyboard or a mouse) and the exit devices (for example, a monitor or a printer).