F1 ... F12 Function Keys; Soft Keys: Fn Key Combinations; Hot Keys - Toshiba P500 User Manual

F1 ... F12 function keys

The function keys (not to be confused with FN) are the 12 keys at the top of
your keyboard. These keys function differently from other keys.
F1 through F12 are called function keys because they execute
programmed functions when pressed. Used in combination with the FN
key, keys marked with icons execute specific functions on the computer.
The function executed by individual keys depends on the software you are
using.

Soft keys: FN key combinations

The FN (function) is used in combination with other keys to form soft keys.
Soft keys are key combinations that enable, disable or configure specific
features.
Emulating keys on enhanced keyboard
Press FN + F12 to lock the cursor on a specific line. The power on default
is off.

Hot keys

Mute: Turns the volume on and off.
Lock: Enters "Lock computer" mode. To restore your desktop, you need to
log on again.
User's Manual
A 101-key enhanced keyboard layout
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The Keyboard
5-2