Arrow keys
The arrow keys are controls for up, down, right,
and left. You can use these keys instead of the
mouse to move the cursor for navigation in a
Web site, in a document, or in a game.
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HP Pavilion home PC
Numeric keys
When the Num Lock LED (light-emitting diode)
on the keyboard is on, the numeric keys are the
number keys and arithmetic functions found on a
basic calculator. When the Num Lock LED on the
keyboard is off, the numeric keys are directional
keys used during games or to move the cursor.
Press the Num Lock key to lock and unlock the
numeric key functions.