Dell Latitude X1 - Manual (Page 3)

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.
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.
display — For more information about your display, see " Using the Display ."
keyboard — The keyboard includes a numeric keypad as well as the Microsoft® Windows® logo key. For information on supported keyboard shortcuts, see
" Using the Keyboard and Touch Pad ."
keyboard status lights
The green lights located above the keyboard indicate the following:
touch pad buttons — Provide the functionality of a mouse. See " Using the Keyboard and Touch Pad " for more information.
touch pad — Provides the functionality of a mouse. See " Using the Keyboard and Touch Pad " for more information.
Secure Digital memory card slot
Left View
Turns on when Bluetooth® wireless technology is enabled. To enable or disable Bluetooth wireless technology, press <Fn><F2>.
Indicates battery charge status.
Turns on when you turn on the computer or blinks steadily when the computer is in standby mode.
Turns on when the numeric keypad is enabled.
Turns on when the Caps Lock function is enabled.
Turns on when the scroll lock function is enabled.
The Secure Digital memory card slot supports one Secure Digital memory card. Use Secure Digital memory cards to save or back up data.