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trackball
(redirected from tracker balls)

   Also found in: Dictionary/thesaurus, Encyclopedia 0.01 sec.
trackball.
See joystick.


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Most modern PDAs feature a combination of input devices, including touch sensitive screens, tracker balls, and small QWERTY keyboards.
The series of toys go by the name Zoam Light Tracker balls, and they have footballs (some with the little fins on one end that make perfect spirals easy to throw), basketballs, soccer balls, super bouncy balls and a flying disc.
Some of the newer smart-phone PDAs have tackled this problem with large touch sensitive screens and tracker balls, which at least lessen the resolution and navigation problems inherent in surfing the web on a mobile phone.
 
 
 
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