Acer 4120 manual Using the keyboard, Lock keys and embedded numeric keypad, Lock key Description

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Using the keyboard

The keyboard has full-sized keys and an embedded numeric keypad, separate cursor, lock, Windows, function and special keys.

Lock keys and embedded numeric keypad

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 numeric mode. The
<Fn> + <F11>	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 <Fn>	When Scroll Lock is on, the screen moves one line up or down when
+ <F12>	you press the up or down arrow keys respectively. Scroll Lock does not
	work with some applications.

The embedded numeric keypad functions like a desktop numeric keypad. It is indicated by small characters located on the upper right corner of the keycaps. To simplify the keyboard legend, cursor-control key symbols are not printed on the keys.

Desired access	Num Lock on	Num Lock off
Number keys on	Type numbers in a normal
embedded keypad	manner.
Cursor-control keys on	Hold <Shift> while using cursor-	Hold <Fn> while using
embedded keypad	control keys.	cursor-control keys.
Main keyboard keys	Hold <Fn> while typing letters on	Type the letters in a
	embedded keypad.	normal manner.