WAEC Computer Studies 2024 Objective — Question 12

Question 12 of 50 from the West African Examinations Council (WAEC) Computer Studies 2024 Objective paper, with the correct answer and a full explanation.

12. If the input variable Y in Figure 1 is passed through the device in Figure 2 before going into the logic gate in Figure 1, compute the resulting value of the output at Z.

A. 0111
B. 1011Correct
C. 1101
D. 0110

Explanation

Y=0101 passed through the NOT gate becomes 1010. Passed through the OR gate with X=0011, Z=1011.

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