ISRO Scientist or Engineer Computer Science 2015


For the following questions answer them individually

Question 1

Which of the given number has its IEEE-754 32-bit floating-point representation as
(0 10000000 110 0000 0000 0000 0000 0000)

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Question 2

The range of integers that can be represented by an n-bit 2’s complement number system is

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Question 3

How many 32 K x 1 RAM chipsare needed to provide a memory capacity of 256 K-bytes?

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Question 4

A modulus-12 ring counter requires a minimum of

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Question 5

The complement of the Boolean expression $$AB(\overline{B}C + AC)$$ is

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Question 6

The code which uses 7 bits to represent a character is

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Question 7

If half adders and full adders are implements using gates, then for the addition of two 17 bit numbers (using minimum gates) the numberofhalf adders and full adders required will be

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Question 8

Minimum number of 2 x 1 multiplexers required to realize the following function, $$f= \overline{A} \overline{B} C + \overline{A} \overline{B} \overline{C}$$.
Assume that inputs are available only in true form and Boolean a constant 1 and 0 are available.

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Question 9

The numberof is in the binary representation of (3 * 4096 +15 * 256 +5+*16+3) are

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Question 10

The boolean expression AB + AB' + A'C + AC is independent of the boolean variable

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