HP Compaq 435 Notebook PC - Manual (Page 16)

Keys
Component Description
(1) esc key Displays system information when pressed in combination
with the
fn key.
(2) fn key Displays system information when pressed in combination
with the
esc key.
(3) Operating system logo key Displays the operating system menu.
(4) Operating system applications key Displays a shortcut menu for items beneath the pointer.
(5) Action keys Execute frequently used system functions.
6 Chapter 2 Getting to know your computer