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Video screens have a design process for user interface. Video screens can cause eyestrain from prolonged viewing. Cathode ray tubes are what are used to display the information on your computer. These send off radiation. This is a concern that has been taken into account when designing better computer screens for user interface. [5] [6]
Affective video games can access their players' emotional states through biofeedback devices. [53] A particularly simple form of biofeedback is available through gamepads that measure the pressure with which a button is pressed: this has been shown to correlate strongly with the players' level of arousal ; [ 54 ] at the other end of the scale ...
A composite monitor or composite video monitor is any analog video display that receives input in the form of an analog composite video signal to a defined specification. [1] A composite video signal encodes all information on a single conductor; a composite cable has a single live conductor plus earth.
The flicker of a CRT monitor can cause various symptoms in those sensitive to it such as eye strain, headaches [9] in migraine sufferers, and seizures in epileptics. [10]As the flicker is most clearly seen at the edge of our vision there is no obvious risk in using a CRT, but prolonged use can cause a sort of retinal shock where the flickering is seen even when looking away from the monitor.
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In order to display non-native resolutions, such displays must use video scalers, which are built into most modern monitors. As an example, a display that has a native resolution of 1600x1200 being provided a signal of 640x480 must scale width and height by 2.5x to display the image provided by the computer on the native pixels.
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