Your webcam records what’s happening in front of your computer so you can share expressions and thoughts on video calls or blogs. You can also use your webcam or its software to record the content played on your screen. Since most recording software allows you to capture your screen without a webcam, using a webcam to record your screen likely involves special case scenarios such as protecting your PC.
The most direct way to record your computer screen with your webcam is to point the webcam directly at your screen. This is easiest with USB and wireless webcams. This technique is useful when trying to diagnose PC problems that involve external input — such as typing — being improperly understood by your PC. If your webcam is mounted inside of your PC, you can use mirrors to provide it with the desired view of your screen.