Table of Contents
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Chapter 1. Meet your computer
Front view
Figure 1. front view
Description
No.
1
Microphones
2
Infrared LED
3
Camera
4
Camera shutter
5
Camera light
6
Time-of-flight sensor
7
Screen
Microphones
The microphones are the PC's built-in sound input devices. They capture your voice and ambient sound and
convert them into digital form. Microphones are essential components when you use your PC for video
conferencing or voice recording.
Infrared LED
The infrared LED generates and emits near-infrared waves that are received and used by a camera (or a
dedicated infrared camera) for facial recognition.
Camera
The built-in camera captures visible light and converts it to digital signals. It is used for video recording and
video conferencing.
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