ISRO Scientist or Engineer Computer Science 2008

Instructions

For the following questions answer them individually

Question 21

The advantage of MOS devices over bipolar devicesis that

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Question 22

How many 2-input multiplexers are required to construct a $$2^{10}$$ - input multiplexer ?

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Question 23

A computer uses 8 digit mantissa and 2 digit exponent.If a = 0.052 and b = 28E + 11, the b + a-b will

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Question 24

The Boolean expression $$(A + \overline{C}) (\overline{B} + \overline{C})$$ simplifies to

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Question 25

In the expression $$\overline{A}(\overline{A} + \overline{B})$$ by writing the first term A as A + 0, the expression is best simplified a

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Question 26

The logic operations of two combinational circuits given in Figure-I and Figure-II are

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Question 27

The output Y of the given circuit is

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Question 28

Whichofthe followingis not a valid rule for XOR?

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Question 29

The numberof distinct simple graphs with up to three nodesis

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Question 30

Maximum numberof edgesin a n-node undirected graph without self loops is

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