HP 550 HP 550 Notebook PC - Maintenance and Service Guide - Page 16

Keys, Component, Function

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Item (5) Component Power light (6) Speaker Keys Function ● On: The computer is on. ● Blinking: The computer is in the Sleep state (Windows Vista) or Standby (Windows XP). ● Off: The computer is off or in Hibernation. Produces sound. Item (1) Component esc key (2) fn key (3) Windows logo key (4) Windows applications key (5) Embedded numeric keypad keys (6) Function keys Function Displays system information when pressed in combination with the fn key. Executes frequently used system functions when pressed in combination with a function key or the esc key. Displays the Windows Start menu. Displays a shortcut menu for items beneath the pointer. Can be used like the keys on an external numeric keypad. Execute frequently used system functions when pressed in combination with the fn key. 8 Chapter 2 External component identification

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Item
Component
Function
(5)
Power light
●
On: The computer is on.
●
Blinking: The computer is in the Sleep state (Windows
Vista) or Standby (Windows XP).
●
Off: The computer is off or in Hibernation.
(6)
Speaker
Produces sound.
Keys
Item
Component
Function
(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)
Windows logo key
Displays the Windows Start menu.
(4)
Windows applications key
Displays a shortcut menu for items beneath the pointer.
(5)
Embedded numeric keypad keys
Can be used like the keys on an external numeric keypad.
(6)
Function keys
Execute frequently used system functions when pressed
in combination with the
fn
key.
8
Chapter 2
External component identification