Acer 1500 - Manual (Page 22)

Getting familiar with your computer 12
English
Indicators on cover
When the cover of your computer is closed, 2 easy-to-read icons are
shown, indicating which state or feature is enabled or disabled.
Num Lock Lights when Num Lock is activated.
Icon Description
Lights up when the computer is on.
Lights when the computer enters Standby mode, and blinks
when it enters into or resumes from hibernation mode.
Icon Function Description