•The touchpad is a
fixed-size surface, operated by a finger, provides positional data to the system, uses a resistive tablet to track
the point of contact
between two conducting surfaces
•Touch tablet was
introduced in the 1970s for drawing with a stylus
•In 1994, the Powerbook™
laptop was introduced by Apple containing
the touchpad and now has come into widespread use, integrated into laptop computers
•Advantages: little
necessity for learning, very fast and very accurate devices with times as fast, or faster than a mouse.” (Douglas
& Mithal, 1997) In
addition, a touchpad can be used with either hand and a choice of fingers.
•Disadvantages: cannot
easily perform drawing tasks. (Douglas & Mithal, 1997), stationary nature causes wrist deviation
•