Compaq Presario CQ42-400 Notebook PC User Guide - Windows 7 - Page 37

Connecting an external mouse, Using the keyboard, Using the action keys - bios

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Connecting an external mouse You can connect an external USB mouse to the computer using one of the USB ports on the computer. Using the keyboard Using the action keys Action keys are customized actions that are assigned to specific keys at the top of the keyboard. The icons on the f1 through f12 keys represent the action key functions. To use an action key, press and hold this key to activate the assigned function. NOTE: The action key feature is enabled at the factory. You can disable this feature in Setup Utility. If this feature is disabled in Setup Utility, you will need to press fn and an action key to activate the assigned function. Refer to the "Setup Utility (BIOS)" chapter for additional information. Icon Key Description f1 Opens Help and Support, which provides information about your Windows operating system and computer, answers to questions and tutorials, and updates to your computer. Help and Support also provides automated troubleshooting and links to support specialists. f2 Decreases the screen brightness level incrementally when you hold down this key. f3 Increases the screen brightness level incrementally when you hold down this key. f4 Switches the screen image among display devices connected to the system. For example, if a monitor is connected to the computer, pressing this key alternates the screen image from computer display to monitor display to simultaneous display on both the computer and the monitor. Most external monitors receive video information from the computer using the external VGA video standard. The switch screen image key can also alternate images among other devices that are receiving video information from the computer. f5 Plays the previous track of a CD or the previous section of a DVD or a BD. f6 Plays, pauses, or resumes a track of an audio CD or a section of a DVD or a BD. f7 Stops playback. f8 Plays the next track of an audio CD or the next section of a DVD or a BD. f9 Decreases speaker volume incrementally when you hold down this key. Using the keyboard 27

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Connecting an external mouse
You can connect an external USB mouse to the computer using one of the USB ports on the
computer.
Using the keyboard
Using the action keys
Action keys are customized actions that are assigned to specific keys at the top of the keyboard. The
icons on the
f1
through
f12
keys represent the action key functions.
To use an action key, press and hold this key to activate the assigned function.
NOTE:
The action key feature is enabled at the factory. You can disable this feature in Setup Utility.
If this feature is disabled in Setup Utility, you will need to press
fn
and an action key to activate the
assigned function. Refer to the “Setup Utility (BIOS)” chapter for additional information.
Icon
Key
Description
f1
Opens Help and Support, which provides information about your Windows operating
system and computer, answers to questions and tutorials, and updates to your
computer.
Help and Support also provides automated troubleshooting and links to support
specialists.
f2
Decreases the screen brightness level incrementally when you hold down this key.
f3
Increases the screen brightness level incrementally when you hold down this key.
f4
Switches the screen image among display devices connected to the system. For
example, if a monitor is connected to the computer, pressing this key alternates the
screen image from computer display to monitor display to simultaneous display on both
the computer and the monitor.
Most external monitors receive video information from the computer using the external
VGA video standard. The
switch screen image
key can also alternate images among
other devices that are receiving video information from the computer.
f5
Plays the previous track of a CD or the previous section of a DVD or a BD.
f6
Plays, pauses, or resumes a track of an audio CD or a section of a DVD or a BD.
f7
Stops playback.
f8
Plays the next track of an audio CD or the next section of a DVD or a BD.
f9
Decreases speaker volume incrementally when you hold down this key.
Using the keyboard
27