Using The Keyboard; Lock Keys And Embedded Numeric Keypad - Acer ASPIRE M5-582PT User Manual

U
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

Note: Information in this section may not apply to your computer.
The keyboard has three lock keys which you can toggle on and off.
Lock key
Caps Lock
Num Lock
Scroll Lock
<Fn> + <F12>

28 - Using the keyboard

SING TH E KEYBOARD
Description
When Caps Lock is on, all alphabetic characters typed
are in uppercase.
When Num Lock is on, keypad is in 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.
When Scroll Lock is on, the screen moves one line up or
down when you press the up or down arrow keys
respectively. Scroll Lock does not work with some
applications.