Exercise: Digital Electronics

Questions for: Digital Electronics

For the logic circuit shown in figure, the simplified Boolean expression for the output Y is
A:
A + B + C
B:
AB
C:
B
D:
C
Answer: B
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In a flip-flop with RS latch a high S and a low R set the output to __________ and a low S and a high R set the output __________ .
A:
low, low
B:
high, high
C:
low, high
D:
high, low
Answer: C
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The contents of stack location 2109 H after the call operation will be
A:
00001111
B:
01010101
C:
00100000
D:
00100010
Answer: C
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A digital clock uses __________ chip
A:
SSI
B:
LSI
C:
VLSI
D:
MSI
Answer: B
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Assertion (A): A presettable counter can be preset to any desired starting point

Reason (R): The maximum frequency of a ripple counter depends on the modulus.

A:
Both A and R are correct and R is correct explanation of A
B:
Both A and R are correct but R is not correct explanation of A
C:
A is true, R is false
D:
A is false, R is true
Answer: B
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