Acer Extensa 4220 - Manual (Page 48)

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English
Touchpad
The built-in touchpad is a pointing device that senses movement on its surface.
This means the cursor responds as you move your finger across the surface of
the touchpad. The central location on the palmrest provides optimum comfort
and support.
Touchpad basics
The following items show you how to use the touchpad:
• Move your finger across the touchpad (2) to move the cursor.
• Press the left (1) and right (4) buttons located beneath the touchpad to
perform selection and execution functions. These two buttons are similar