Which one of the following technologies is not a touch-screen technolo

Which one of the following technologies is not a touch-screen technology ?

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Resistive technology

Surface technology

Inductive technology

Capacitive technology

Answer is Right!

Answer is Wrong!

This question was previously asked in

UPSC CISF-AC-EXE – 2021

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Among the given options, Inductive technology is typically used for stylus input rather than general finger touch-screen operation. Resistive, Surface (e.g., Surface Acoustic Wave – SAW, Surface Capacitive), and Capacitive (e.g., Projective Capacitive) technologies are widely recognized and used as touch-screen methods that respond directly to finger contact (or a conductive object in the case of capacitive). Inductive technology works by sensing an electromagnetic field generated by a specialized stylus interacting with a grid underneath the screen, making it less suitable for passive finger touch.

– Resistive, Surface (SAW, Capacitive), and Capacitive are common touch-screen technologies for finger input.
– Inductive technology primarily relies on electromagnetic resonance with a powered stylus and is not a standard finger-touch technology.

Resistive touch screens work by pressing two layers together. Capacitive touch screens work by sensing the change in capacitance when a conductive object (like a finger) touches the screen. SAW touch screens use ultrasonic waves on the screen surface. Infrared touch screens use infrared beams or imaging.

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