Dell Latitude D631 (Early 2009) - Manual (Page 17)

About Your Computer 17
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.
KE Y BOA RD — The keyboard includes a numeric keypad as well as the Microsoft ® Windows ® logo key. For
information on supported keyboard shortcuts, see "Using the Keyboard" on page 39.
T O U C H P A D — Provides the functionality of a mouse (see "Touch Pad" on page 41).
F I N G ER P RI N T RE AD E R ( O P T I O N A L ) — Helps to keep your Dell™ computer secure. When you slide your finger over
the reader, it uses your unique fingerprint to authenticate your user identity. For information on how to activate and
use the security management software that controls the fingerprint reader, see "Security Management Software" on
page 74.
T O U C H P A D B U T T O N S / T R A C K ST IC K B U T T O N S — Use these buttons much like the buttons on a mouse when you
use the touch pad and track stick to move the cursor on the display.
T RA CK S T I C K — Provides the functionality of a mouse.
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.
Turns on when wireless devices are enabled.
Turns on when Bluetooth ® wireless technology is enabled. To enable or
disable Bluetooth wireless technology, move the wireless switch to the "on"
position. See "wireless switch" on page 20 for more information.
NOTE: Bluetooth wireless technology is an optional feature on your
computer, so the icon turns on only if you ordered Bluetooth wireless
technology with your computer. For more information, see the documentation
that came with your Bluetooth wireless technology.