Digital Computer Electronics – Section 4

26. A flip-flop is a _____ element that stores a binary digit as a low or high voltage.

A. chip
B. bus
C. I/O
D. memory
E. None of the above

Correct Answer:  D. memory

27. Conversion of decimal number 8910 it’s binary number equivalent is

A. 10110112
B. 11001112
C. 10110012
D. 100112
E. None of the above

Correct Answer:  C. 10110012

28. An AND gate has 7 inputs. How many input word are in its truth table?

A. 64
B. 32
C. 16
D. 128
E. None of the above

Correct Answer:  D. 128

29. When an inverter is placed between both inputs of an SR flip-flop, the resulting flip-flop is

A. JK flip-flop
B. D flip-flop
C. T flip-flop
D. Master slave JK flip-flop
E. None of the above

Correct Answer:  B. D flip-flop

30. Arithmetic operation are coded in

A. Decision symbols
B. Input/Output(I/O)
C. Processing symbols
D. Terminal symbols
E. None of the above

Correct Answer:  C. Processing symbols

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