Casio HK1223 - Manual (Page 49)

2-6 Operating Your Computer
Numeric keys facilitate entering of numbers and calculations. When Num
Lock is on, the numeric keys are activated; meaning you can use these
keys to enter numerals.
NOTES:
When the numeric keypad is activated and you need to type the English letter in the
keypad area, you can turn Num Lock off or you can press Fn and then the letter
without turning Num Lock off.
Some software may not be able to use the numeric keypad on the computer. If so,
use the numeric keypad on an external keyboard instead.
Euro Symbol
You can press the Euro dollar sign on the keyboard.
To press the Euro sign on the keyboard, hold down either of the Alt
keys and type 0128 on the numeric keypad of your keyboard.
To press the Euro sign on an UK keyboard, hold down the Alt Gr key
and press 4 (which has an Euro sign on it).
Windows Keys
The keyboard has two keys that perform Windows-specific functions:
Windows Logo key and Application key.
The Windows Logo key opens the Start menu and performs
software-specific functions when used in combination with other keys.
The
Application key usually has the same effect as a right mouse
click. (See your Windows manual for more information.)
Function Keys
On the top row of the keys are the function keys: F1 to F12 . Function keys
are multi-purpose keys that perform functions defined by individual
programs.