Lenovo IdeaPad U110 - Manual (Page 30)

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Chapter 2. Using Your Computer
Num Lock
Blue: Number Lock function is activated. Number Lock function
allows some of the keyboard letters to act as numbers for easier
numeric input.
Caps Lock
Blue: The Capital Lock function is activated. The Capital Lock
function allows typing in all upper case letters (such as A, B, C).
When the Caps Lock light is off, lower case letters are entered.
Power Indicator
ƒ Blue: System is powered on.
ƒ Blinking Blue: System is in sleep mode.
ƒ OFF: System is powered off or in hibernation mode.
Battery Status Indicator
Amber*: Battery is charging.
* The color and status of the indicator varies depending on the battery
power level.
Wireless Device Indicator
ƒ Amber: Bluetooth is enabled.
ƒ Blue*: Wireless LAN is enabled and connected.
ƒ Purple: Bluetooth and Wireless LAN are both enabled.
* Depending on the wireless LAN card, these actions may differ.