NUMBER REPRESENTATIONS
Quiz
•
Computers
•
11th Grade
•
Practice Problem
•
Hard
suhaila phs
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11 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The range of the numbers which can be stored in an eight bit register is
-128 to+128
-128 to + 127
-8 to +8
-999999++999999
2.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
2's complement is used to represent signed integers, especially ..................... integers.
Negative
Positive
decimal
None of these
3.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
What is used to represent the signed magnitude?
LSB
MSB
Both LSB and MSB
None of the above
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why is the decimal number system is also called as positional number system?
Since the values of the numbers are decided by multiplying the values.
Since the values of the numbers are decided by the weight of the values.
Since the values of the numbers are decided by adding the values.
Since the values of the numbers are decided by position of the values.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Adding in binary, the decimal values 26 + 27 will produce a sum of:
111010
110110
110101
101011
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Adding the two’s complement of –11 + (–2) will yield which two’s complement answer?
1110 1101
1111 1001
1110 1001
1111 0011
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Use the two’s complement system to add the signed numbers 11110010 and 11110011. Determine, in decimal, the sign and value of each number and their sum.
–14 and –13; –27
–11 and –16; –27
–113 and –114; 227
–27 and –13; 40
Answer explanation
1111 0010 (-14)
0000 1101
+ 1
0000 1110 (+14)
1111 0011 (-13)
0000 1100
+1
0000 1101 (+13 )
1111 0010
1111 0011
1110 0101 (do 2's complement to identify the -ve value)
1110 0101 (-27)
0001 1010
+1
0001 1011 (+27)
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