Introduction to Computing MCQs with Answers
Practice important Introduction to Computing MCQs with answers and explanations.
Chapter: 22
Q361:
What is the binary representation of the decimal number 7?
A. 111
B. 1000
C. 1110
D. 1111
Correct Answer:
A
Chapter: 22
Q362:
How do you convert the decimal number 45 to binary?
A. Divide by 2 and record remainders
B. Multiply by 2 and record remainders
C. Add powers of 2
D. Subtract powers of 2
Correct Answer:
A
Chapter: 22
Q363:
What is the value of the binary number 00010010 in decimal?
A. 18
B. 20
C. 22
D. 24
Correct Answer:
A
Chapter: 22
Q364:
How is binary notation different from decimal notation?
A. Binary uses only 0s and 1s, while decimal uses 0-9
B. Binary uses decimal values, while decimal uses binary values
C. Binary is more efficient in storing large numbers
D. Binary notation is used for fractions only
Correct Answer:
A
Chapter: 22
Q365:
If you want to represent the number 100 in binary, which bits are set to 1?
A. 2^7 and 2^6
B. 2^6 and 2^5
C. 2^5 and 2^4
D. 2^4 and 2^3
Correct Answer:
B
Chapter: 22
Q366:
What is the first step in the algorithm for converting a decimal number to binary?
A. Divide the number by 2 and record the remainder
B. Subtract the highest power of 2
C. Add the number to the list of binary digits
D. Multiply the number by 2
Correct Answer:
A
Chapter: 22
Q367:
What does the binary number 111000 represent in decimal?
A. 56
B. 60
C. 62
D. 64
Correct Answer:
A
Chapter: 22
Q368:
In binary notation, how is the number 1 represented?
A. 1
B. 10
C. 100
D. 1000
Correct Answer:
A
Chapter: 22
Q369:
What is the binary representation of the decimal number 64?
A. 1000000
B. 100000
C. 10000000
D. 10000
Correct Answer:
C
Chapter: 22
Q370:
What is the purpose of using binary notation in computing?
A. To represent numeric values using base-10
B. To simplify complex mathematical calculations
C. To represent values using only two digits, 0 and 1
D. To encode text and characters
Correct Answer:
C
Chapter: 23
Q371:
What is the result of adding 1 and 1 in binary?
A. 10
B. 11
C. 1
Correct Answer:
A
Chapter: 23
Q372:
In binary addition, what happens when the sum exceeds 1?
A. The sum is placed, and 1 is carried over
B. The sum is reduced by 1
C. The sum is multiplied by 2
D. No carry is used
Correct Answer:
A
Chapter: 23
Q373:
What is the result of adding 1101 and 1011 in binary?
A. 11000
B. 10000
C. 10100
D. 11100
Correct Answer:
D
Chapter: 23
Q374:
How do you handle binary addition when a carry is generated?
A. Place 0 and carry 1 to the next higher bit
B. Place 1 and carry 0 to the next higher bit
C. Place the sum and carry 1 to the next lower bit
D. Ignore the carry
Correct Answer:
A
Chapter: 23
Q375:
What is the result of binary addition 0101 + 0011?
A. 1000
B. 110
C. 1100
D. 1110
Correct Answer:
B
Chapter: 23
Q376:
What is the result of adding 1000 and 1001 in binary?
A. 10001
B. 11001
C. 1001
D. 10010
Correct Answer:
A
Chapter: 23
Q377:
What does the term 'carry' refer to in binary addition?
A. A bit added to the next column when the sum exceeds 1
B. The number of bits used in the addition
C. A bit that is dropped from the result
D. A value that is subtracted
Correct Answer:
A
Chapter: 23
Q378:
In binary addition, what is the result of 1010 + 0101?
A. 1111
B. 1011
C. 1000
D. 1100
Correct Answer:
A
Chapter: 23
Q379:
How do you add binary numbers from right to left?
A. By adding corresponding bits and carrying over if necessary
B. By adding bits without carrying over
C. By converting to decimal before adding
D. By adding the numbers in pairs
Correct Answer:
A
Chapter: 23
Q380:
What is the binary sum of 0110 and 1101?
A. 10011
B. 10101
C. 1111
D. 10010
Correct Answer:
C