What are the characteristics of modern computers

Features: 1. Fast computing speed. The computing speed of modern 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; 2. The calculation accuracy is high, and the accuracy can range from a few thousandths to a millionth; 3. Strong logical operation ability; 4. Large storage capacity, the memory inside the computer has memory characteristics and can store a large amount of information; 5. High degree of automation , the pre-programmed program group is incorporated into the memory. Under program control, the computer can work continuously and automatically without human intervention; 6. High cost performance.

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.

It is composed of a hardware system and a software system. A computer without any software installed is called a bare metal computer. It can be divided into five categories: supercomputer, industrial control computer, network computer, personal computer, and embedded computer. The more advanced computers include biological computers, photon computers, quantum computers, etc.

Computer inventor John von Neumann. The computer is one of the most advanced scientific and technological inventions in the 20th century. It has had an extremely important impact on human production activities and social activities, and is developing rapidly with strong vitality. Its application fields have expanded from its initial application in military scientific research to various fields of society. It has formed a huge computer industry, driven technological progress on a global scale, and triggered profound social changes. Computers have been used in general schools and enterprises. Public institutions have entered the homes of ordinary people and become an indispensable tool in the information society.

Characteristics of modern computers

Fast computing speed:

The internal circuit of the computer can Complete various arithmetic operations with high speed and accuracy. 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.

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.

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.

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 of these data program.

High degree of automation:

Because computers have storage memory capabilities and logical judgment capabilities, people can incorporate pre-programmed program groups into the computer memory and control them under program control. Under this condition, the computer can work continuously and automatically without human intervention.

High cost performance:

Almost every household will have a computer. It is becoming more and more common and popular. In the 21st century, computers will become indispensable for every household. One of the electrical appliances. Computers are developing rapidly, including desktops and notebooks.

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