trackball

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trackball

[′trak‚bȯl]
(computer science)
A ball inset in the console of a video display terminal, which can be rotated by the operator, and whose motion is followed by a cursor on the display screen.

trackball

A stationary pointing device that contains a movable ball rotated with the fingers or palm. From one to four keys are located in various positions depending on the unit. In the late 1980s and 1990s, Kensington Microware popularized the trackball with its Turbo Mouse for the Macintosh. Turbo Mouse for Windows was subsequently released, and over the years, the Turbo Mouse evolved into the Expert Mouse and Orbit brands.

The advantage of the trackball, and the reason many people like it, is that the unit remains in the same position on the desk, and only the ball is moved. See mouse, pointing stick and touchpad.


The Turbo Mouse
The Turbo Mouse popularized the trackball for the Macintosh. Later models were developed for the PC. (Image courtesy of Kensington Microware, Ltd.)
References in periodicals archive ?
When asked which new features users would like to see in Kensington trackballs specifically, wireless connectivity was the most requested feature.
A trackball is a standard computer device that replaces the conventional mouse.
8" ergonomically designed trackball eliminates the need for a mouse and saves valuable desk space
The 25mm trackball keyboards are built to withstand storage temperatures ranging from -40C to +85C, and operating temperatures ranging from 0C to +65C.
The product comparison chart below shows the differences between the former LED trackballs and the new laser trackballs.
We've been setting the industry standard in trackballs for more than 15 years, and while we've enjoyed the loyalty and enthusiasm of so many Kensington trackball users during that time, we must continue to innovate.
Today Kensington reaffirmed its long-standing commitment to the Mac(R) community with the launch of its Turbo Mouse(R) Pro Wireless trackball.
Orbit 3D gives those who prefer trackballs over mice a chance to take part in the touch revolution and feel what they've been missing," said Ramon Alarcon, director of Immersion's computing and entertainment group.
Logitech's product family includes digital imaging devices such as webcams, mice and trackballs, keyboards, headsets and speakers, interactive gaming devices and 3D controllers.
Kensington has received over 25 awards for its input devices, which include the highly acclaimed Expert Mouse(R) and Expert Mouse(R) Pro, the TurboRing(TM), TurboBall(TM), and Orbit(R) Trackballs.
Where trackballs require maintenance and touch pads frequently fail, Duraswitch's magnetically coupled, multi-directional actuator is a viable solution.