Computer organization questions answers aptitude test

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Computer organization questions answers aptitude test

Question 1 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which method/s of representation of numbers occupies a large amount of memory than others?
A
Sign-magnitude
B
1's complement
C
2's complement
D
1's & 2's compliment
Question 1 Explanation: 
It takes more memory as one bit used up to store the sign.
Question 2 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which representation is most efficient to perform arithmetic operations on the numbers?
A
Sign-magnitude
B
1's complement
C
2'S complement
D
None of the mentioned
Question 2 Explanation: 
The two's complement form is more suitable to perform arithmetic operations as there is no need to involve the sign of the number into consideration.
Question 3 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which method of representation has two representations for '0'?
A
Sign-magnitude
B
1's complement
C
2's complement
D
None of the mentioned
Question 3 Explanation: 
One is positive and one for negative.
Question 4 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
When we perform subtraction on -7 and 1 the answer in 2's complement form is .....
A
1010
B
1110
C
110
D
1000
Question 4 Explanation: 
First the 2's complement is found and that is added to the number and the overflow is ignored.
Question 5 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
When we perform subtraction on -7 and -5 the answer in 2's complement form is .....
A
11110
B
1110
C
1010
D
10
Question 5 Explanation: 
First the 2's complement is found and that is added to the number and the overflow is ignored.
There are 5 questions to complete.

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