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How can a touchscreen device detect different types of touches like tap, swipe, and pinch?

hard📝 Application Q9 of 15
Intro to Computing - How Hardware Works
How can a touchscreen device detect different types of touches like tap, swipe, and pinch?
ABy using different keys on the keyboard
BBy moving the mouse pointer in different directions
CBy tracking the location, movement, and number of touch points
DBy printing different symbols on the screen
Step-by-Step Solution
Solution:

  1. Step 1: Understand touchscreen gesture detection

    Touchscreen senses where and how fingers move on the screen.

  2. Step 2: Identify how gestures differ

    Tap is a single touch, swipe is movement, pinch uses two fingers moving closer or apart.

  3. Final Answer:

    By tracking the location, movement, and number of touch points -> Option C

  4. Quick Check:

    Gestures detected by touch tracking [OK]
Quick Trick: Gestures = location + movement + touch count [OK]
Common Mistakes:
  • Thinking keyboard keys detect gestures
  • Confusing mouse movement with touch
  • Assuming printing symbols detects gestures

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