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T2 Fact


In 1971, the first "touch sensor" was developed by Dr. Sam Hurst (founder of Elographics) while he was an instructor at the University of Kentucky. This sensor, called the "Elograph," was patented by the University of Kentucky Research Foundation. The "Elograph" was not transparent like modern touch screens; however, it was a significant milestone in touch screen technology. In 1977, Elographics developed and patented five-wire resistive technology, the most popular touch screen technology in use today.

-Mary Bellis, About.com

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