Simply amazing ....
Definition associated with the video is from Wikipedia :
The touch screen or touch screen hardware is a device that allows the user to interact with a computer touching the screen. It can therefore be considered as the union of a device output (screen) and an input device (the system that detects contact with the screen itself, getting the position). The latter mechanism is the use of other alternative pointing devices as mouse or touch pad .
A touch screen can be achieved with a range of quite different technologies. The first touch screen used beams of infrared light screened according to a layout grid just above the surface of the screen. Putting your finger to the screen the user stops some horizontal and some vertical beams beams, allowing the identification of coordinates that has been the "contact".
Most modern models use a sheet of transparent plastic, thin and strong, adhering to the surface of the screen. The position "episode" is calculated on the basis of ability for X and Y axes, which varies depending on the point where contact is made.
Model HP-150 was among the first computers with touch screens on the market in the world. More than a touch screen in the strict sense (that is specifically designed as such), is equipped with a CRT screen Sony 9 "which was added to a grid of infrared transmitters and receivers capable of locate any opaque object placed in contact with the screen.
usually used as a screen for handheld in 2004 the touch screen also became the primary method of control of the newly Nintendo's console , the Nintendo DS , rediscovering very versatile and precise for the gaming applications are typical of this portable console.
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