HP ProBook 4440s User Manual page 21

Component
(1) fn key
(2) Operating system logo key
(3) Function keys
(4) Operating system applications key
(5) num lk key
(6) Integrated numeric keypad
Description
Executes frequently used system functions when pressed
in combination with a function key.
Displays the operating system menu.
Execute frequently used system functions when pressed in
combination with the fn key.
Displays a shortcut menu for items beneath the cursor.
Alternates between the navigational and numeric functions
on the integrated numeric keypad.
Can be used like an external numeric keypad.
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