Asus VivoTab RT - Manual (Page 12)

ASUS Tablet PC User Manual 1
Getting to know your Tablet PC
Ambient light sensor
The ambient light sensor detects the amount of ambient light in your
environment. It allows the system to automatically adjust the brightness
of the display depending on the ambient light condition.
Front camera
This built-in 2-megapixel camera allows you to take pictures or record
videos using your Tablet PC.
Camera indicator
The camera indicator lights up when either of the built-in cameras is in
use.
Touch screen panel
The touch screen panel allows you to operate your Tablet PC using touch
gestures.
Front view