HP ProBook 4720s Notebook-PC - Manual (Page 15)

Keys
NOTE: Refer to the illustration that most closely matches your computer.
Component Description
(1) esc key Displays system information when pressed in combination with the
fn key.
(2) fn key Executes frequently used system functions when pressed in
combination with a function key or the
esc key.
(3) Embedded numeric keypad keys Can be used like the keys on an external numeric keypad when
pressed in combination with the
fn and num lk keys.
(4) Function keys Execute frequently used system functions when pressed in
combination with the
fn key.
Identifying hardware 5