HP 640 ProBook G3 Series Maintenance And Service Manual page 24

Component
(1)
(2)
(3)
(4)
(5)
(6)
16 Chapter 2 External component identification
esc key
fn key
Windows key
Function keys
num lk key
Integrated numeric keypad
Description
Displays system information when pressed in combination with
the fn key.
Executes frequently used system functions when pressed in
combination with a function key, the
other key.
See Using the hot keys on page 17
Opens the Start menu.
NOTE: Pressing the Windows key again will close the Start
menu.
Execute frequently used system functions in combination with
the fn key.
See Using the hot keys on page
Alternates between the navigational and numeric functions on
the integrated numeric keypad.
A separate keypad to the right of the alphabet keyboard that
enables you to add, subtract, and perform other numeric tasks.
When num lk is on, the integrated keypad can be used like an
external numeric keypad.
num lk key, the esc key, or
17.