What are the main characteristics of computers?

The main features of computers: 1. Fast computing speed; because computers use high-speed electronic devices, computers can work at extremely high speeds. 2. High calculation accuracy; since the computer uses binary to represent data, its accuracy mainly depends on the computer's word length. The longer the word, the more effective digits and the higher the accuracy. 3. Strong logical operation ability, able to compare and judge information. 4. Large storage capacity; the memory has memory characteristics and can store a large amount of information, and this information includes not only various types of data information, but also programs for processing these data.

The operating environment of this tutorial: Windows 7 system, Dell G3 computer.

Computer, commonly known as computer, is a modern electronic computing machine used for high-speed calculations. It can perform numerical calculations, logical calculations, and also has storage and memory functions. It is a modern intelligent electronic device that can run according to the program and process massive data automatically and at high speed.

The main features of computers

1. Fast computing speed

The internal circuit of the computer is composed of: Various arithmetic operations can be completed accurately and at high speed. The computing speed of today's computer systems has reached trillions of operations per second, and microcomputers can also reach more than 100 million operations per second, enabling a large number of complex scientific computing problems to be solved. For example: the calculation of satellite orbits, calculations of large dams, and 24-hour weather calculations take years or even decades, but in modern society, they can be completed in just a few minutes using computers.

The computing speed of computers is much higher than that of humans. For example, take the Intel i3-10105f processor as an example. Its CPU main frequency is 3.7GHz. Assuming that it can execute one instruction per clock cycle, it means that the i3-10105f can perform 3.7 billion operations per second.

This is a speed far beyond the reach of human manual calculations. Therefore, one of the main features of a computer is its fast computing speed, which is also one of the most important features of a computer.

2. High calculation accuracy

The development of science and technology, especially the development of cutting-edge science and technology, requires highly accurate calculations. The reason why computer-controlled missiles can accurately hit the predetermined target is inseparable from the precise calculation of the computer. A general computer can have more than a dozen or even dozens of (binary) significant digits, and the calculation accuracy can range from a few thousandths to a few millionths, which is beyond the reach of any computing tool.

In scientific research and engineering design, there are high requirements for the accuracy of calculation results. General calculation tools can only achieve a few digits, while the accuracy of computer data processing results can reach more than ten or dozens of significant digits, and even any accuracy can be achieved as needed. Since computers use binary to represent data, their accuracy mainly depends on the computer's word length. The longer the word, the more significant digits and the higher the accuracy.

3. Strong logical operation ability

Computers can not only perform precise calculations, but also have logical operation functions and can compare and judge information. The computer can save the data, programs, intermediate results and final results involved in the calculation, and can automatically execute the next instruction based on the judgment result for the user to call at any time.

4. Large storage capacity

The memory inside the computer has memory characteristics and can store a large amount of information. This information includes not only various types of data information, but also processing procedures for these data.

The computer's memory has the function of storing and memorizing large amounts of information, which gives the computer the ability to "memory". At present, the storage capacity of computers has reached gigabytes or even higher, and is still increasing. Its "memory" function is an important difference from traditional computers.

5. High degree of automation

Because computers have the ability to store memory and logical judgment, people can incorporate pre-programmed program groups into the computer memory, and in the program Under control, computers can work continuously and automatically without human intervention.

The second feature of computers is automatic control, which is complementary to the first feature. For example, in the example above, the i3-10105f can execute 3.7 billion instructions per second. If it is not automatically controlled, each time an instruction is executed, it needs to be manually switched to the next instruction, which is obviously impossible.

So while the calculation speed is fast, it must also have the characteristics of automatic control. Therefore, automatic control is also one of the main features of computers.

6. High reliability

The reason why computers can be popularized and loved by people is that in addition to their fast computing speed and automatic control, they are also inseparable from It is characterized by high reliability. Think about it, if a computer is simply fast but not reliable, what is the use of computing?

Therefore, another important feature of computers is high reliability. These three features complement each other and have made computers popular. These three features are indispensable.

For more related knowledge, please visit the FAQ column!

The above is the detailed content of What are the main characteristics of computers?. For more information, please follow other related articles on the PHP Chinese website!