Acer C300 Series manual Lock Keys, Lock Key Description

Lock Keys

The keyboard has three lock keys which you can toggle on and off.

Lock Key	Description
Caps Lock	When Caps Lock is on, all alphabetic characters typed
	are in uppercase.
Num lock	When Num Lock is on, the embedded keypad is in
(Fn-F11)	numeric mode. The keys function as a calculator
	(complete with the arithmetic operators +, -, *, and /).
	Use this mode when you need to do a lot of numeric
	data entry. A better solution would be to connect an
	external keypad.
Scroll lock	When Scroll Lock is on, the screen moves one line up
(Fn-F12)	or down when you press the up or down arrow keys
	respectively. Scroll Lock does not work with some
	applications.

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