trackball

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trackball

a type of computer peripheral that is larger than a typical mouse having one large ball to use to move the cursor and two large buttons for click commands.
References in periodicals archive ?
Note to Editors: Kensington MouseWorks, Kensington Mouse and Thinking Mouse are trademarks and Kensington, Expert Mouse and Turbo Mouse are registered trademarks of Kensington Microware Limited.
High-end features of the new Expert Mouse trackball include the latest execution of Kensington's award-winning Scroll Ring(R) feature, which circles the ball to provide precise scrolling functionality right at your fingertips.
Subtle lines and curves designed from ergonomic principles, a smaller foot print, and a new, soft detachable wrist rest make the Expert Mouse trackball exceptionally comfortable for work, games or Internet surfing.
Its full line of Macintosh and Windows-compatible input devices include the popular Kensington Mouse and Thinking Mouse, and the best-selling Expert Mouse and Turbo Mouse -- the first programmable trackballs.

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