Touch pads require the light touch of a finger gliding across the
surface to move the mouse pointer. A tap of the finger acts as a
"click". They call for accurate, yet minimal arm and wrist
motion. Driver software provides for customizing the buttons for
easier control. Laptop computers often use this technology.
SmartCat Touchpad (Cirque
touch pad offers a small touch area, requires little dexterity,
and is not pressure-sensitive. You can place it anywhere, such as
on your lap, the desk, or the floor. Little or no movement is needed
from the shoulder, arm, wrist or hand.