220-1101 · Question #306
Which of the following handles touch-screen operation on a mobile device?
The correct answer is D. Digitizer. The digitizer is a transparent layer overlaid on the display that detects touch input - finger presses, swipes, and multi-touch gestures - and converts them into digital signals the processor can interpret. It is physically separate from the display itself. A stylus (A) is an inp
Question
Which of the following handles touch-screen operation on a mobile device?
Options
- AStylus
- BLiquid crystal display
- CProcessor
- DDigitizer
How the community answered
(33 responses)- A3% (1)
- C3% (1)
- D94% (31)
Explanation
The digitizer is a transparent layer overlaid on the display that detects touch input - finger presses, swipes, and multi-touch gestures - and converts them into digital signals the processor can interpret. It is physically separate from the display itself. A stylus (A) is an input tool, not a component. The LCD (B) is responsible for producing the visual image. The processor (C) handles computation but does not directly sense touch; it receives input data from the digitizer.
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