46. The carry propagation can be expressed as ________.
(a) Cp = AB
(b) Cp = A + B
(c)
(d)
47. Which gate is best used as a basic comparator?
(a) NOR
(b) OR
(c) Exclusive-OR
(d) AND
48. A half-adder does not have ________.
(a) carry in
(b) carry out
(c) two inputs
(d) all of the above
49. For the device shown here, assume the D input is LOW, both S inputs are LOW, and the input is LOW. What is the status of the outputs?
(a) All are HIGH.
(b) All are LOW.
(c) All but are LOW.
(d) All but are HIGH.
50. When adding an even parity bit to the code 110010, the result is ________.
(a) 1110010
(b) 1111001
(c) 110010
(d) 001101
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