Turns on when you turn on the computer and blinks when the computer is in a power management mode.
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.
Turns on steadily or blinks to indicate battery charge status.
If the computer is connected to an electrical outlet, the 
light operates as follows:
¡Solid green: The battery is charging.
¡Flashing green: The battery is almost fully charged.
¡Off: The battery is adequately charged (or external power is not available to charge the battery).
If the computer is running on a battery, the 
light operates as follows:
¡Off: The battery is adequately charged (or the computer is turned off).
¡Flashing orange: The battery charge is low.
¡Solid orange: The battery charge is critically low.
mute button — Press this button to turn off the volume.
keyboard — The keyboard includes a numeric keypad as well as the Windows logo key. For information on supported keyboard shortcuts, see "Using the Keyboard and Touch Pad."
touch pad — Provides the functionality of a mouse. See "Using the Keyboard and Touch Pad" for more information.
track stick/touch pad buttons — Provide the functionality of a mouse. See "Using the Keyboard and Touch Pad" for more information.
track stick — Provides the functionality of a mouse. See "Using the Keyboard and Touch Pad" for more information.
speaker — To adjust the volume of the integrated speaker, press the volume control buttons, mute button, or
power button — Press the power button to turn on the computer or exit a power management mode.
NOTICE: To avoid losing data, turn off your computer by performing a Microsoft® Windows® operating system shutdown rather than by pressing the power button.
If the computer stops responding, press and hold the power button until the computer turns off completely (which may take several seconds).