Electronics and Communication Engineering - Digital Electronics

36. 

Schmitt trigger can be used as a

A. comparator
B. square-wave generator
C. flip-flop
D. all of these

Answer: Option D

Explanation:

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37. 

Most of the digital computers do not have floating-point hardware because

A. floating point hardware is costly
B. it is slower than software
C. it is not possible to perform floating point addition by hardware
D. of not specific reason

Answer: Option A

Explanation:

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38. 

Consider the following statements in connection with CMOS inverter in figure where both the MOSFET are of enhancement type and both have a threshold voltage of 2 V
statements 1: T1 conducts when vi ≥ 2 V
statements 2: T1 is always in saturation when v0 = 0 V
Which of the following is correct?

A. Only statement 1 is true
B. Only statement 2 is true
C. Both the statement are true
D. Both the statements are false

Answer: Option A

Explanation:

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39. 

The number of FF required for a divide by 12 circuit is

A. 16
B. 12
C. 8
D. 4

Answer: Option D

Explanation:

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40. 

In sign magnitude numbers,

A. the leading bit stands for the sign
B. the leading bit is part of the magnitude
C. the leading bit is always 0
D. the leading bit is always 1

Answer: Option A

Explanation:

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