Fujitsu LifeBook P1620 - Capslock Indicator; Hard Drive Access Indicator; Numlk Indicator; Scrlk Indicator

31 - Status Indicator Panel
Hard Drive Access Indicator
The Hard Drive Access indicator lights green when your internal hard drive is being accessed.
NumLk Indicator
The NumLk indicator shows that the integral keyboard is set in ten-key numeric keypad mode.
CapsLock Indicator
The CapsLock indicator shows that your keyboard is set to type in all capital letters.
ScrLk Indicator
The ScrLk indicator shows that your scroll lock is active.