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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

Mobile devices

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)
  • A
    3% (1)
  • C
    3% (1)
  • D
    94% (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.

Topics

#Mobile device components#Touchscreen technology#Digitizer

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