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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]
An optical trackpad is an input device based on an optical sensor, which detects the displacement of a finger that is moving on top of it. [1] The sensor is used typically in smartphones , where it replaces the D-pad , and in ultra-portable or ultra-mobile PCs , where it replaces touchpads , pointing sticks or trackballs as pointing device .
The track ball enables users to scroll a page or document in any direction, including diagonally. Instead of mechanical buttons, the touch-sensitive topshell (mentioned below) and the pressure-sensing trackball allow the mouse to detect which side is being touched or whether the trackball is being held in. [2] [3] [4] [5]
The BlackBerry Pearl 8100 was the first BlackBerry without a trackwheel, which was replaced by a miniature trackball to enable full 4-way and mouse-style navigation on a BlackBerry. The look of the new trackball gave the "Pearl" its name. The 9000 series was launched in 2008.
The claim that the advent of optical tracking in mice put trackballs at a disadvantage makes no sense, as trackballs acquired optical tracking before mice. The first optical mouse (using the modern definition) was released in 1999 by Microsoft. The Logitech Trackman Marble used optical tracking and was released in 1996 — around 3 years earlier.
The WNBA will become the first women's professional sports league in the U.S. to have league-wide optical tracking after entering a multi-year deal with Second Spectrum, a Genius Sports technology ...
IntelliMouse Explorer 3.0 Microsoft IntelliMouse with IntelliEye optical sensor mouse. IntelliMouse is a series of computer mice from Microsoft.The IntelliMouse series is credited with a number of innovations; [1] Microsoft was among the first mouse vendors to introduce a scroll wheel, [2] an optical mouse, and dedicated auxiliary buttons on the side of the mouse.
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