HP ProBook 4720s Notebook-PC - Manual (Page 16)

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) Integrated numeric keypad keys Can be used like the keys on an external numeric keypad.
(4) Function keys Execute frequently used system functions when pressed in
combination with the
fn key.
Front components
Component Description
(1) Drive light Blinking white: The hard drive or optical drive is being accessed.
(2) Media Card Reader Supports the following optional digital card formats:
● Memory Stick
● Memory Stick Duo (adapter required)
● Memory Stick Pro (adapter required)
● MultiMediaCard (MMC)
● Secure Digital (SD) Memory Card
● xD-Picture Card (XD)
● xD-Picture Card (XD) Type H
● xD-Picture Card (XD) Type M
(3) Audio-out (headphone) jack Produces sound when connected to optional powered stereo
speakers, headphones, ear buds, a headset, or television audio.
NOTE: When a device is connected to the headphone jack, the
computer speakers are disabled.
(4) Audio-in (microphone) jack Connects an optional computer headset microphone, stereo array
microphone, or monaural microphone.
Right-side components
NOTE: Refer to the illustration that most closely matches your computer.
6 Chapter 1 Features