Toshiba A40 Series 사용자 설명서

The Battery indicator shows the condition of the
battery’s charge: Green indicates full charge, orange
indicates battery charging and flashing orange indicates a
low battery charge. Refer to Chapter 6, 

The Built-in HDD indicator glows green when the
computer is accessing the hard disk.

The figures below show the positions of the keypad overlay indicators and the
CapsLock indicator.

When the F10 key indicator glows the keypad overlay lets you control the cursor.
When the F11 key indicator glows the keypad overlay lets you enter numbers.

When the Arrow mode indicator lights green, you can
use the keypad overlay (gray labeled keys) as cursor keys.
Refer to the 

Keyboard.

You can use the keypad overlay (gray labeled keys) for
numeric input when the Numeric mode indicator lights
green. Refer to the 

The Keyboard.