NECO Computer Studies 2025 Objective — Question 8
Question 8 of 50 from the National Examinations Council (NECO) Computer Studies 2025 Objective paper, with the correct answer and a full explanation.
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Which of the following statements are true about pointing devices? I. Device has buttons used to select objects. II. Device moves an onscreen pointer to allow user select objects. III. Older types of the device used laser, an optical technology that tracks movements with light while newer types of the device use ball only. IV. User slides device along a flat surface to move pointer around the screen.
- A. I, II and III only
- B. I, II and IV onlyCorrect
- C. I, III and IV only
- D. I, II, III and IV
Explanation
All the statements except III are correct. Statement III is factually incorrect and reversed: older mice used a rubber ball while newer ones use optical or laser sensors, which rely on light, not the other way round.
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