ISRO CSE 2015


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)
A
2.5
B
3
C
3.5
D
4.5
Digital Logic   Number System
Question 2
The range of integers that can be represented by an n bit 2's complement number system is:
A
-2^{n-1} \text { to }\left(2^{n-1}-1\right)
B
-\left(2^{n-1}-1\right) \text { to }\left(2^{n-1}-1\right)
C
-2^{n-1} \text { to } 2^{n-1}
D
-\left(2^{n-1}+1\right) \text { to }\left(2^{n-1}-1\right)
Digital Logic   Number System


Question 3
How many 32K x 1 RAM chips are needed to provide a memory capacity of 256K-bytes?
A
8
B
32
C
64
D
128
Computer Organization   Memory Chip Design
Question 4
A modulus -12 ring counter requires a minimum of
A
10 flip-flops
B
12 flip-flops
C
8 flip-flops
D
6 flip-flops
Digital Logic   Sequential Circuit
Question 5
The complement of the Boolean expression A B(\bar{B} C+A C) is
A
(\bar{A}+\bar{B})+(B+\bar{C}) \cdot(\bar{A}+\bar{C})
B
(\bar{A} \cdot \bar{B})+(B \bar{C}+\bar{A} \bar{C})
C
(\bar{A}+\bar{B}) \cdot(B+\bar{C})+(A+\bar{C})
D
(A+B) \cdot(\bar{B}+C)(A+C)
Digital Logic   Boolean Algebra




There are 5 questions to complete.

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