The microprocessor integrates the computer with what is on a small silicon chip
The controller (English Name: controller) is a master device in accordance with the resistance change circuit wiring and a predetermined sequence change or control circuit to control the value of motor starting, speed control, braking and reverse.It consists of the program counter, the instruction register, the instruction decoder, the timing generator and the operation controller. It is the "decision making mechanism", which is to coordinate and direct the operation of the whole computer system.
Arithmetic unit, a computer that performs arithmetic and logic operations. The basic operation of the device, including addition, subtraction, multiplication, division of the four operations, and, or, not, XOR logic operations, as well as the shift, comparison and transfer operations, also known as arithmetic logic unit (ALU).
The microprocessor integrates the arithmetic and controller into a small piece of silicon.
