The F1 to F12 keys are assigned to different functions depending on the
program in use, however the 
key is usually assigned to program help.
•Cursor and Screen control keys move the cursor. They may perform other functions, depending on your software.
Do not allow liquid to drip into the keyboard or you may damage the keyboard.
To clean the computer keyboard, use slightly damp cotton swabs. Scrub the keys and the surface around the keys.
Using the Numeric Keypad
Your keyboard includes a numeric keypad, which is a group of keys that you can set to type numbers and mathematical symbols, such as the plus sign (Figure 16). A number or symbol on the right corner of each keypad key shows its numeric function.
Num Lock LED
Figure 16. Numeric Keypad & Numlock LED
Press 
to turn on the embedded numeric keypad. The numeric functions of the keypad are enabled and the Num Lock LED turns on. (See “Reading the System Status LEDs” on page 26 for the location of the Num Lock LED.)
While the numeric functions are enabled, you can temporarily return a key to its normal
function by pressing 
and the key. For example to type the letter m, press 
+ 
, this operation displays the letter m.
To turn the numeric keypad off, press 
again. The Num Lock LED turns off.
Using the Keyboard 19