Encyclopedia > Touch screen

Article Content

Touch screen

A touch screen is a input device that allows the user to interact with the computer by touching the display screen.

Often this uses beams of infrared light[?] that are projected across the screen surface. Interrupting the beams generates an electronic signal identifying the location of the screen. Software interprets the signal and performs the required operation.

This article (or an earlier version of it) contains material from FOLDOC, used with permission.

All Wikipedia text is available under the terms of the GNU Free Documentation License

Search Encyclopedia

Search over one million articles, find something about almost anything!

Featured Article

Father Damien

... to help the lepers who had virtually nothing to keep them warm or fed. After twelve years of ministering to the patients at the leper colony (see Kalawao County, Hawaii), ...