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22 About Your Computer
DEVICE STATUS LIGHTS
The blue lights located to the right of the keyboard indicate the following:
Power light – Turns on when you turn on the computer, and blinks when the
computer is in a power management mode.
Hard drive activity light – Turns on when the computer reads or writes data.
NOTICE: To avoid loss of data, never turn off the computer while the
light is flashing.
Battery status light – Turns on steadily or blinks to indicate battery charge
status.
Wi-Fi status light – Turns on when wireless networking is enabled. To enable
or disable wireless networking, use the wireless switch (see "wireless switch"
on page 25).