HP ProBook 450 G1 Notebook PC - Manual (Page 18)

Component Description
(1) fn key Executes frequently used system functions when pressed
in combination with a function key.
(2) Operating system logo key Displays the operating system menu.
(3) Function keys Execute frequently used system functions when pressed in
combination with the
fn key.
(4) num lk key
Turns the embedded numeric keypad on and off when
pressed in combination with the
fn key.
Alternates between the navigational and numeric functions
on the integrated numeric keypad.
(5) Integrated numeric keypad When num lk has been enabled, the keys can be used like
an external numeric keypad. To alternate between this
numeric function and the navigational function (indicated by
the directional arrows on the keys), press the
num lk key.
8 Chapter 2 Getting to know your computer