WAEC Computer Studies 2025 Objective — Question 8
Question 8 of 50 from the West African Examinations Council (WAEC) 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 the user select objects. III. Older types of the device used a laser, an optical technology that tracks movements with light while newer types of the device use a ball only. IV. User slides the device along a flat surface to move the pointer around the screen.
- A. I, II and III only
- B. I, II and IV onlyCorrect
- C. I, II and IV only
- D. I, II, III and IV
Explanation
I and II are true (buttons select objects; device moves the on-screen pointer). III is false — it is reversed (older devices used a mechanical ball, newer ones use optical/laser technology). IV is true (most pointing devices are moved across a flat surface).
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