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Computer Organization multiple choice questions and answers set contain 5 mcqs on number system and data representation in computer science. Each quiz objective question has 4 options as possible answers. Choose your option and check it with the given correct answer.
(6)
The sum of two hexadecimal numbers 23D and 9AA gives the hexadecimal number
[A]
AF7
[B]
BF6
[C]
BE7
[D]
BE5
Comment
Answer: Option [C]
23D -> 0010 0011 1101 and 9AA -> 1001 1010 1010
So the sum of two hexadecimal numbers is 1011 1110 0111 i.e. BE7
(7)
When the value 37H is divide by 17H, the remainder is
[A]
C0 H
[B]
03 H
[C]
07 H
[D]
09 H
Comment
Answer: Option [D]
37 H means 00110111
17 H means 00010111
On division of 37 H by 17 H the remainder is 09 H
(8)
The numbers in the range -23 to +31 is represented by the minimum number of bits :
Comment
Answer: Option [A]
31 can be represented by 5 bits and the 1 bit needed for sign bit.
(9)
The largest integer that can be represented in signed-2's complement representation using n bits is
[A]
2n-1
[B]
2n
[C]
2n-1-1
[D]
2n-1
Comment
Answer: Option [D]
2n-1 is the largest integer in 2's complement representation using n bits.
(10)
The least negative value that the product of two 8-bit two's complement numbers can take is
[A]
-214
[B]
-215
[C]
-210
[D]
-212
Comment
Answer: Option [B]
-215 is the least negative value for the two 8-bit 2's complement numbers.
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