1, the power button is on the computer host, and the power button on the front of the chassis (there are generally two buttons on the front, the big one is the power button and the small one is the reset button. ) there is a power icon, and when the light is on, it proves that it is pressed correctly.

2. If the computer monitor is turned off and needs to be turned on, press the button as shown in the figure, and the computer screen will light up, which proves that it is correct.

3. Wait a moment, hear the fan sound of the computer host, and the computer display screen lights up to show the boot screen, that is, the computer boot is successful.

4. For the all-in-one machine, there is no host. The power button of the computer is on the side or under the back of the computer, and there is also a power icon. Click it to start it.