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2. Optical trackpad - Wikipedia

   en.wikipedia.org/wiki/Optical_trackpad

   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 .

3. Mousepad - Wikipedia

   en.wikipedia.org/wiki/Mousepad

   The use of mousepads with precision surfaces eliminates the spot-jitter effects of older and/or low-quality optical mice. Newer generations of mouse pads incorporate a wireless charging system into the pad, allowing a wireless mouse to be used without the need to replace or recharge batteries. (ex. Logitech PowerPlay)

4. ClickStart - Wikipedia

   en.wikipedia.org/wiki/ClickStart

   The system consists of a base console unit (the CPU, which connects to a TV and accepts the software cartridges) and a wireless keyboard with a single-button optical mouse and mouse pad attached. The mouse pad is attached to the right-hand side of the keyboard by default, but can be removed and re-attached to the left-hand side of the keyboard ...

5. Optical mouse - Wikipedia

   en.wikipedia.org/wiki/Optical_mouse

   An early Xerox optical mouse chip, before the development of the inverted packaging design of Williams and Cherry. The first two optical mice, first demonstrated by two independent inventors in December 1980, had different basic designs: [1] [2] [3] One of these, invented by Steve Kirsch of MIT and Mouse Systems Corporation, [4] [5] used an infrared LED and a four-quadrant infrared sensor to ...

6. Pointing device - Wikipedia

   en.wikipedia.org/wiki/Pointing_device

   A computer mouse Touchpad and a pointing stick on an IBM notebook Trackpoint An elder 3D mouse 3D pointing device. A pointing device is a human interface device that allows a user to input spatial (i.e., continuous and multi-dimensional) data to a computer.

7. Pointing stick - Wikipedia

   en.wikipedia.org/wiki/Pointing_stick

   A pointing stick on a mid-1990s-era Toshiba laptop. The two buttons below the keyboard act as a computer mouse: the top button is used for left-clicking while the bottom button is used for right-clicking. Optical pointing sticks are also used on some Ultrabook tablet hybrids, such as the Sony Duo 11, ThinkPad Tablet and Samsung Ativ Q.

8. Police illegally sell restricted weapons, supplying crime

   www.aol.com/police-illegally-sell-restricted...

   A CBS News investigation found dozens of law enforcement leaders — sheriffs, captains, lieutenants, chiefs of police — buying and illegally selling firearms, even weapons of war, across 23 U.S ...

9. Touchpad - Wikipedia

   en.wikipedia.org/wiki/Touchpad

   Closeup of a touchpad on an Acer CB5-311 laptop Closeup of a touchpad on a MacBook 2015 laptop. A touchpad or trackpad is a type of pointing device.Its largest component is a tactile sensor: an electronic device with a flat surface, that detects the motion and position of a user's fingers, and translates them to 2D motion, to control a pointer in a graphical user interface on a computer screen.