Digital Computer Electronics - Section 1 Multiple Questions and Answers.




31. If A ⊕ B = C, then:
A. A ⊕ C = B
B. B ⊕ C = A
C. A ⊕ B ⊕ C = 0
D. Both (a) & (b)

32.A small dot or circle printed on top of an IC indicates:
A. Vcc
B. Gnd
C. Pin 14
D. Pin 1

33.The number of two input multiplexers required to construct a 210 input multiplexer is:
A. 31
B. 10
C. 127
D. 1023

34.The full adder adds the Kth bits of two numbers to the:
A. difference of the previous bits
B. sum of all previous bits
C. carry from ( K - 1 )TH bit
D. sum of previous bit

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