COMPUTER HARDWARE
INPUT DEVICES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Capacitive touchscreen
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Resistive touchscreen
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Infra-red touchscreen
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Surface Acoustic Wave screen
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Detailed explanation-1: -SAW touchscreens rely upon ultrasonic sound waves and make use of them for touch detection. The surface acoustic wave touch screen consists of one glass sheet with two transmitting transducers, two receivers, and sound wave reflectors placed along the edges of the glass.
Detailed explanation-2: -Surface Acoustic Wave (SAW) is a relatively new type of touchscreen technology that, in recent years, has become increasingly popular.
Detailed explanation-3: -Surface acoustic wave technology consists of a piezoelectric substrate and interdigitated electrodes or transducers (IDTs). The IDTs are patterned on the surface of the piezo substrates by design. Together, they transform the applied electrical energy into mechanical energy and generate surface acoustic waves.