Digital Computer Electronics – Section 4

46. In boolean algebra, the overbar stands for the NOT operation, the plus sign stands for the _____ operation.

A. AND
B. OR
C. NAND
D. NOR
E. None of the above

Correct Answer:  B. OR

47. The reduced form of the Boolean expression (A+B)(A+C) is:

A. AB+AC
B. A+B+C
C. AC+B
D. A+BC
E. None of the above

Correct Answer:  D. A+BC

48. A full-adder adds _____ bits, and producing a SUM and a _____

A. 8, SUBTRACTION
B. 3, CARRY
C. 16, DIVIDE
D. All of the above
E. None of the above

Correct Answer:  B. 3, CARRY

49. The radix of the binary number is:

A. 3
B. 1
C. 2
D. 10
E. None of the above

Correct Answer:  C. 2

50. An XOR gate recognizes only words with an _____ number of 1’s.

A. even
B. odd
C. different
D. All of the above
E. None of the above

Correct Answer:  B. odd

Leave A Comment?

6 + 2 =