NECO Computer Studies 2025 Objective — Question 11
Question 11 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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If the input variable X in Figure 1 is passed through the device in Figure 2 before going into the logic gate in Figure 1, what will be the output Z?
- A. 1001
- B. 0100Correct
- C. 1101
- D. 0110
Explanation
When an input passes through the NOT gate (Figure 2), its complement is produced. So, if we pass 0011 into the NOT gate, we have 1100 as the output. Feeding this value (1100) and Y(0101) into the AND gate gives an output Z of 0100.
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