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Kensington's first trackball mouse was the Turbo Mouse for Macintosh released in 1986 and trackballs have since been one of the major offerings by the company. Their first laptop physical security lock was made in 1992. [6] Kensington also produced accessories for portable devices like the iPod, including the Stereo Dock in 2005. [7]
The LTE Lite/20 and LTE Lite/25 introduced suspend and hibernation modes, as well as a BIOS password and a Kensington slot for added security. [1] Starting with the LTE Lite/25C and LTE Lite/25E, a trackball was built into the display housing on the right side, with the left- and right-click buttons on the reverse side of the housing. [2]
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Logitech Cordless TrackMan Wheel trackball mose The original version of the Kensington Expert Mouse can use a standard American pool ball as a trackball. [citation needed]A trackball is a pointing device consisting of a ball held by a socket containing sensors to detect a rotation of the ball about two axes—like an upside-down ball mouse with an exposed protruding ball. [1]
Like other pointing devices such as mice, touchpads or trackballs, operating system software translates manipulation of the device into movements of the pointer on the computer screen. Unlike other pointing devices, it reacts to sustained force or strain rather than to gross movement, so it is called an "isometric" [ 1 ] pointing device.
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A trackball is a pointing device consisting of a ball housed in a socket containing sensors to detect rotation of the ball about two axis, similar to an upside-down mouse: as the user rolls the ball with a thumb, fingers, or palm the pointer on the screen will also move. Tracker balls are commonly used on CAD workstations for ease of use, where ...
[9] [10] The device was patented in 1947, [10] but only a prototype using a metal ball rolling on two rubber-coated wheels was ever built, and the device was kept as a military secret. [9] Another early trackball was built by Kenyon Taylor, a British electrical engineer working in collaboration