NECO Computer Studies 2025 Objective — Question 10
Question 10 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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Use the logic devices in Figures 1 and 2 to answer this question and the next two, given that the input variables X and Y have values of 0011 and 0101 respectively. Compute the value of the output Z in Figure 1 using the values of X and Y given.
- A. 1110
- B. 1000
- C. 0001Correct
- D. 0111
Explanation
Feeding X(0011) and Y(0101) into the logic gate in Figure 1 (an AND gate) bit by bit gives an output Z of 0001. (Note: this question depends on a diagram/figure that was not fully legible in the source scan; the answer given is a best estimate.)
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