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This article mainly introduces what are the basic functions of the microcomputer controller, which has a certain reference value. Interested friends can refer to it. I hope you will gain a lot after reading this article. Let's take a look at it.

The basic function of the microcomputer controller is to control the coordinated work of all parts of the machine. The computer controller is the nerve center of the computer, which directs the automatic coordination of the various parts of the machine; under the control of the controller, the computer can automatically carry out a series of operations according to the steps set by the program to complete specific tasks.

Correlation

The basic function of microcomputer controller is _.

A. perform arithmetic and logical operations

B. store all kinds of control information

C. maintain various control states

D. to control the coordinated work of all parts of the machine

Correct answer: d

Answer analysis

Option An is the function of the arithmetic unit; option B is the function of the memory. The controller contains state registers, which are mainly used to maintain the running state of the program: option C is the function of the controller, but not the basic function of the controller. The basic function of the controller is to control all parts of the machine to work harmoniously, so option D is the correct answer.

Extended data:

The computer controller is the nerve center of the computer, which directs the automatic coordination of the various parts in the whole machine. Under the control of the controller, the computer can automatically perform a series of operations in accordance with the steps set by the program to complete specific tasks.

Features:

(1) sequencing. The instructions that make up the program must be executed in a certain order and cannot be messed up.

(2) timing. Electronic computer is a kind of complex machine, which is composed of many components and components, and different signals have different paths. In order for these components and components to work together, the system must have a unified time standard-clock and beat. The clock and beat in a computer are provided by an oscillator. The T operating frequency of the oscillator is called the clock frequency. Obviously, the higher the clock frequency, the faster the computer works.

Timing and timing are called timing.

(3) Operation control. The controller shall be able to send operation control signals to the relevant components at the specified beat according to the contents specified in the instructions.

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