What's the reason why the computer won't turn on?

The reasons why the computer cannot be turned on: 1. The hard disk setting is wrong; 2. The cable connecting the host and the monitor is loose; 3. The computer is attacked by hackers and needs to restore the system and reinstall the computer; 4. The motherboard jumper Incorrect installation; 5. The power switch is not turned on/power failure; 6. Chassis power-on button failure; 7. CPU overheating; 8. Core hardware failure; 9. Memory problem; 10. BIOS settings are disordered.

Operating system for this tutorial: Windows 10 system, DELL G3 computer.

1. The hard disk setting is wrong.

2. The cable connecting the host and the monitor is loose.

3. The computer is attacked by hackers and needs to restore the system and reinstall the computer.

4. The motherboard jumper is installed incorrectly.

5. The power switch is not turned on/power failure.

6. The chassis power-on button is faulty.

7. The CPU is overheated.

8. Core hardware failure.

9. Memory problem.

10. The BIOS settings are incorrect.

Computer Introduction

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

It consists of a hardware system and a software system. A computer without any software installed is called a bare metal computer. Computers are used as control systems for a variety of industrial and consumer equipment, including simple special-purpose equipment, industrial equipment, and general-purpose equipment.

The history of computer invention

On February 14, 1946, the world’s first electronic computer, the “Electronic Numerical Integrator Computer” (ENIAC), was customized by the U.S. military. Electronic Numerical And Calculator) was born at the University of Pennsylvania in the United States.

In 1946, "ENIAC, the world's first recognized electronic digital computer" was launched.

According to the ruling of the U.S. Supreme Court in 1973, the earliest electronic digital computer should be John Atanasoff, associate professor of the Department of Physics at Iowa State University, and his graduate assistant Cliff. "ABC" (Atanasoff-Berry-Computer) manufactured by Clifford E. Berry (1918-1963) in October 1939.

In 1990, former U.S. President Bush awarded John Atanasoff the nation's highest technology award, the "National Science and Technology Award."

Characteristics of computers

1. Fast operation speed: The computer is composed of internal circuits that can complete various arithmetic operations at high speed and accurately. 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.

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.

Basic definition of booting

1. Start the machine.

2. Refers to starting shooting (movies, TV series, etc.).

3. Specifically refers to turning on computers, mobile phones, game consoles, etc.

Basic conditions for computer startup

First, the power IC is working properly;

Second, the logic circuit is working properly;

Third, the software is running normally.

Among them, the first two points indicate that the hardware is working properly, and the third point indicates that the software is working properly.

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