For Touch Screen we have terms and definitions in 2 topics. The topics are E-Learning and Technology.

Touch Screen (E-Learning)

An input device used to simplify user input and response. The user touches the screen to control the output, working with menus or multiple-choice decision points. Allows some simulation of hands-on training; for example, pointing to parts on a machine.

Touch Screen (Technology)

A computer screen designed or modified to recognize the location of a touch on its surface. By touching the screen, the user can make a selection or move a cursor. The simplest type of touch screen is made up of a grid of sensing lines, which determine the location of a touch by matching vertical and horizontal contacts. Another, more accurate type uses an electrically charged surface and sensors around the outer edges of the screen to detect the amount of electrical disruption and pinpoint exactly where contact has been made. A third type has infrared light-emitting diodes (LEDs) and sensors around the outer edges of the screen. These LEDs and sensors create an invisible infrared grid, which the user's finger interrupts, in front of the screen. Compare light pen.

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