What is the principle that the computer camera doesn't work?

The camera is an input device of the computer, which can capture the images around you and convert them into digital signals that the computer can recognize. If the camera does not work, it may be due to the following reasons:

1. There is no camera driver installed on the computer.

2. The camera driver is damaged or expired.

The camera itself is damaged.

4. The camera is disabled or hidden in the device manager.

5. There are other software or hardware failures in the computer system, which makes the camera unable to work normally.

If your computer camera doesn't work, you can try the following actions to solve the problem:

1. Make sure that the camera driver is installed on the computer.

2. Check whether the camera is disabled or hidden in the device manager.

3. Try to update the camera driver.

4. Try using other applications to test whether the camera can work normally.

5. Try to plug the camera into another computer for testing.