NABTEB Computer Studies 2024 Objective — Question 12

Question 12 of 50 from the National Business and Technical Examinations Board (NABTEB) Computer Studies 2024 Objective paper, with the correct answer and a full explanation.

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. A. 0111
B. B. 1011Correct
C. C. 1101
D. D. 1110

Explanation

If Y(0101) is fed into the NOT gate, the output becomes 1010. Feeding this new value into the OR gate with X(0011), we have 1011.

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