Exercise: Digital Electronics

Questions for: Digital Electronics

How many input-output ports can be accessed by direct method of 8085 μp?
A:
8
B:
256
C:
32 K
D:
64 K
Answer: B
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Which two rows represent identical binary numbers?
A:
A second and fourth
B:
Fifth and eight
C:
Third and seventh
D:
Second and third
Answer: D
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For the circuit shown in the figure, what is the frequency of the output Q?
A:
Twice the input clock frequency
B:
Half the input clock frequency
C:
Same as input clock frequency
D:
Inverse of the propagation delay of the FF
Answer: B
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A full adder has two outputs SUM and CARRY.
A:
True
B:
False
C:
D:
Answer: A
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Which of them radiates emission?
A:
LED only
B:
LCD only
C:
Both LED and LCD
D:
Neither LED nor LCD
Answer: A
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