CPU is the core of the computer hardware system. It is composed of a calculator and a controller. The main function of the CPU is to interpret calculator instructions and process data in computer software. The calculator is a computer that performs various arithmetic. and logical operation components. The controller is the command center of the computer. It directs the various components of the computer to work in coordination according to the functional requirements of the instructions. It is the nerve center of the computer.
The operating environment of this tutorial: Windows 10 system, DELL G3 computer.
Arithmetic unit and memory.
Central processing unit (CPU) is one of the main devices of electronic computers and the core component of computers. Its function is mainly to interpret computer instructions and process data in computer software. The CPU is the core component of the computer that reads instructions, decodes them, and executes them.
The central processing unit mainly consists of two parts, namely the controller and the arithmetic unit, which also includes cache memory and the data and control bus that realizes the connection between them. The three core components of an electronic computer are the CPU, internal memory, and input/output devices. The main functions of the central processing unit are to process instructions, perform operations, control time, and process data.
Operator
Operator is a component in the computer that performs various arithmetic and logical operations, also known as arithmetic logic unit . Its basic operations include the four arithmetic operations of addition, subtraction, multiplication, and division, logical operations such as AND, OR, NOT, and XOR, as well as operations such as shifts, comparisons, and transmissions. During the calculation process, the arithmetic unit continuously obtains data from the memory, and returns the results to the memory after calculation. Its work is done under the controller.
Controller
The controller is the command center of the computer. It directs the various components of the computer to work in coordination according to the functional requirements of the instructions. It is the nerve center of the computer. The controller can read instructions from the memory and execute the command, that is, fetch the instruction from the memory according to the command address pointed out by the program counter, decode it, and then issue a control command to the relevant component based on the instruction to execute the command.
The arithmetic unit and the controller together form the core component of the computer host - the central processing unit, or CPU. Simply put, the difference between the two is: the arithmetic unit obtains data to perform calculations, while the controller performs commands.
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