Exercise: Digital Electronics

Questions for: Digital Electronics

Which of the following is equivalent to AND-OR realization?
A:
NAND-NOR
B:
NOR-NOR
C:
NOR-NAND
D:
NAND-NAND
Answer: D
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How many zone bits are there?
The 8156 of a figure has RAM locations from 2000 H to 20 FFH.
A:
2
B:
4
C:
8
D:
16
Answer: C
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What is the direction of control bus?
A:
Unidirectional into μp
B:
Unidirection out of μp
C:
Bidirectional
D:
Mixed direction, i.e., some lines into μp an some others out of μp
Answer: D
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If an inverter is placed at the input to an SR flip-flop, the result is
A:
T flip-flop
B:
D flip-flop
C:
JK flip-flop
D:
BCD decade counter
Answer: B
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For the shaded area in Venn diagram of the given figure, the Boolean expression is
A:
AB + BC + CA
B:
ABC + A B C
C:
ABC + A B C
D:
ABC+AB
Answer: A
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