Introduction to Computing MCQs with Answers
Practice important Introduction to Computing MCQs with answers and explanations.
Multiple Choice Questions
Q401: What is the binary addition result of 0.101 and 0.011?
- A: 0.1
- B: 0.11
- C: 0.1
- D: 0.111
View Answer
D
Q402: What is the key concept to remember when adding binary fractions?
- A: Align the radix point before performing addition
- B: Ignore the radix point and add normally
- C: Convert fractions to decimal before adding
- D: Treat fractions as integer values
View Answer
A
Q403: What is the most popular system for representing integers in computers?
- A: Binary notation
- B: Two’s complement notation
- C: ASCII code
- D: Decimal notation
View Answer
B
Q404: How many bits are typically used for representing integers in modern computers?
- A: 8 bits
- B: 16 bits
- C: 32 bits
- D: 64 bits
View Answer
C
Q405: In 2’s complement notation, what does the leftmost bit represent?
- A: The integer value
- B: The sign bit
- C: The magnitude of the number
- D: The overflow
View Answer
B
Q406: How do you convert a positive integer to its negative counterpart in 2’s complement notation?
- A: Invert all bits
- B: Copy the number directly
- C: Add 1 to the binary representation
- D: Subtract 1 from the binary representation
View Answer
A
Q407: What is the 2’s complement representation of -7 if the 4-bit representation of 7 is 0111?
- A: 1001
- B: 1010
- C: 1110
- D: 110
View Answer
A
Q408: How does addition in 2’s complement notation compare to binary addition?
- A: It requires a different method
- B: It uses the same method
- C: It is performed in decimal first
- D: It requires converting to ASCII
View Answer
B
Q409: What is the maximum positive number that can be represented with 4 bits in 2’s complement notation?
- A: 7
- B: 8
- C: 15
- D: 16
View Answer
A
Q410: What happens if you add two numbers and the result exceeds the maximum value in 2’s complement notation?
- A: Overflow occurs
- B: The result is negative
- C: The result is truncated
- D: The result is converted to decimal
View Answer
A