HP TC4400 User Manual
Page 25
 
Product Description
Maintenance and Service Guide
1–19
Table 1-7
Display Components
Item
Component
Function
1
Tablet PC Input Panel 
Launch button
Opens the Microsoft Tablet PC Input 
Panel application, which includes a 
handwriting pad and an on-screen 
keyboard.
2
Rotate button
Switches the image between landscape 
and portrait orientation.
3
Q button
When Windows is running, opens or 
closes the Q Menu.
4
Windows Security 
button
When pressed while:
■ Windows is open, enters the 
ctrl+alt+delete
command.
■ The Setup utility is open, enters the
reset command.
5
Jog dial
Functions like the enter and the up and 
down arrow keys on a standard keyboard.
■ Press inward to enter a command.
■ Rotate upward to scroll upward.
■ Rotate downward to scroll downward.
6
Internal microphone
Records sound.
7
Pen eject button
Ejects the pen from the pen holder.
8
Pen holder
Secures the pen to the tablet PC.