Consider a full adder with the following input values (1) x = 1, y = 0 and Cᵢ…
2015
Consider a full adder with the following input values
(1) x = 1, y = 0 and Cᵢ (carry input) = 0
(2) x = 0, y = 1 and Cᵢ = 1
Compute the values of S (sum) and Cₒ (carry output) for the above input values
- A.
S = 1, Cₒ = 0 and S = 0, Cₒ = 1
- B.
S = 0, Cₒ = 0 and S = 1, Cₒ = 1
- C.
S = 1, Cₒ = 1 and S = 0, Cₒ = 0
- D.
S = 0, Cₒ = 1 and S = 1, Cₒ = 0
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Correct answer: A
For a full adder, the Sum (S) is calculated as x XOR y XOR Ci, and Carry Out (Co) follows majority logic. In Case 1 where x=1, y=0, and Ci=0, S equals 1 and Co equals 0. In Case 2 where x=0, y=1, and Ci=1, S equals 0 and Co equals 1.
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