  # ISRO Scientist or Engineer Computer Science 2015

Instructions

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) Question 2

# The range of integers that can be represented by an n-bit 2’s complement number system is Question 3

# How many 32 K x 1 RAM chipsare needed to provide a memory capacity of 256 K-bytes? Question 4

# A modulus-12 ring counter requires a minimum of Question 5

# The complement of the Boolean expression $$AB(\overline{B}C + AC)$$ is Question 6

# The code which uses 7 bits to represent a character is 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 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. Question 9

# The numberof is in the binary representation of (3 * 4096 +15 * 256 +5+*16+3) are Question 10

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