Epson ActionNote - Manual (Page 19)

Brightness switch
This switch controls the background brightness of the LCD
screen. Slide the switch down to lighten the screen or up to
darken it.
Contrast switch
This switch controls the contrast between the background and
foreground on the LCD screen. Slide the switch down to lighten
the contrast or up to darken it.
Trackball
Use this built-in pointing device to move around the screen,
select items, or choose commands in application programs that
support a pointing device.
Power switch
This switch turns the computer on and off.
Hard disk drive
Your computer comes with a removable hard disk drive. Slide
the drive to the right to remove it. See Chapter 3 for
instructions.
Access cover
Remove this cover to install a numeric coprocessor or
additional memory. See Chapter 5 for details.
Keyboard urea
This is where you type commands and enter data. For more
information, see Chapter 3.
1-4 Setting Up the Computer