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WAEC Data Processing 2020 Question 28

Question 28

Computer Maintenance

One characteristic of a dirty mouse is that the mouse

  1. A.is not recognized by the system.
  2. B.unmounts itself from the system.
  3. C.pointer changes appearances.
  4. D.pointer moves erratically.
Show the answer and explanation

Answer: D (pointer moves erratically.)

Explanation

Dirt on the ball or sensor makes the pointer jump or move unevenly.