Lenovo IdeaPad U150 - Manual (Page 37)

Chapter 2. Learning the basics
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System status indicators - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
These indicators inform you of the computer status.
e f g h
a b c d
Hard disk drive indicator
Num lock indicator
Caps lock indicator
Scroll lock indicator
Power status indicator
Battery status indicator
Wireless communication
indicator
Touchpad indicator