What is the complete function of the operator?

The complete function of the arithmetic unit is to perform arithmetic and logical operations; the arithmetic unit is a component in the computer that performs various arithmetic and logical operations; the basic operations of the arithmetic unit include addition, subtraction, multiplication, and division. Logic operations such as AND, OR, NOT, and XOR, as well as operations such as shifts, comparisons, and transfers, are also called arithmetic logic components.

#Environment of this article: Windows 7 system, Dell G3 computer.

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The complete function of the operator is to perform arithmetic and logical operations.

Arithmetic unit: arithmetic unit, a component in a computer that performs various arithmetic and logical operations. The basic operations of the arithmetic unit 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. It is also called the Arithmetic Logic Unit (ALU).

The arithmetic unit consists of an arithmetic logic unit (ALU), an accumulator, a status register, a general-purpose register group, etc. The basic functions of the Arithmetic Logic Operation Unit (ALU) are 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 shift and complement. When the computer is running, the operations and types of operations of the arithmetic units are determined by the controller. The data processed by the operator comes from the memory; the processed result data is usually sent back to the memory or temporarily stored in the operator. Together with the Control Unit, it forms the core part of the CPU.

The basic function of the arithmetic unit is to complete the processing of various data, such as the four arithmetic operations, logical operations such as AND, OR, and negation, arithmetic and logical shift operations, comparing values, changing symbols, and calculating Main memory address, etc.

The registers in the operator are used to temporarily save the data participating in the operation and the intermediate results of the operation. Corresponding components should also be set up in the operator to record the characteristics of an operation result, such as whether it overflows, the sign bit of the result, whether the result is zero, etc.

There are many types of arithmetic units used in computers. From different perspectives, there are different classification methods. The decimal point representation can be divided into fixed-point arithmetic and floating-point arithmetic. The fixed-point arithmetic unit can only perform fixed-point number operations, and its characteristic is that the range represented by machine numbers is smaller, but the structure is simpler. The floating-point arithmetic unit has a strong function and can perform operations on both floating-point numbers and fixed-point numbers. Its number representation range is large, but its structure is quite complex.

In terms of carry system, it is divided into binary calculator and decimal calculator. Generally, computers use binary arithmetic units. As computers are widely used in business and data processing, more and more machines are expanding the function of decimal arithmetic, so that the arithmetic units can complete both binary operations and decimal operations. The arithmetic unit in the computer needs to have the function of completing a variety of arithmetic operations, so various algorithms must be integrated to design a complete arithmetic component.

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