Introduction to Computing MCQs with Answers
Practice important Introduction to Computing MCQs with answers and explanations.
Chapter: 26
Q421:
How does Excess notation differ from Binary notation?
A. It represents values with an offset
B. It uses decimal digits
C. It represents values with fixed points
D. It uses variable length patterns
Correct Answer:
A
Chapter: 26
Q422:
What does the Excess 8 notation represent?
A. 10000 as Zero
B. 1011 as 11
C. 100 as Zero
D. 0110 as 6
Correct Answer:
A
Chapter: 26
Q423:
How is the Excess Four notation different from the standard Binary notation?
A. It has a fixed offset of 4
B. It represents only positive values
C. It uses floating points
D. It requires more bits for representation
Correct Answer:
A
Chapter: 26
Q424:
In Excess notation, how is a positive number represented?
A. By adding an offset to the number
B. By subtracting an offset from the number
C. By multiplying the number by a factor
D. By dividing the number by a factor
Correct Answer:
A
Chapter: 26
Q425:
What value does 1011 represent in Excess 8 notation?
A. 3
B. 11
C. 8
D. 5
Correct Answer:
A
Chapter: 26
Q426:
How does the Excess Four notation compare to 2’s complement notation?
A. Excess Four has a fixed offset, while 2’s complement does not
B. Excess Four uses variable lengths, while 2’s complement uses fixed lengths
C. Excess Four is used for floating points, while 2’s complement is for integers
D. Excess Four is used for characters, while 2’s complement is for images
Correct Answer:
A
Chapter: 26
Q427:
What is the Excess 4 representation of the decimal number 6?
A. 1010
B. 1100
C. 100
D. 110
Correct Answer:
A
Chapter: 26
Q428:
In Excess notation, how are negative numbers represented?
A. By using patterns before zero
B. By using patterns after zero
C. By using only positive values
D. By using a different base
Correct Answer:
A
Chapter: 26
Q429:
What does the Excess 4 notation of 100 represent?
A. Zero
B. Four
C. Eight
D. Sixteen
Correct Answer:
A
Chapter: 26
Q430:
How is Excess notation useful in computer systems?
A. It simplifies arithmetic operations
B. It enhances image quality
C. It provides efficient character encoding
D. It reduces the size of floating-point numbers
Correct Answer:
A
Chapter: 26
Q431:
How can you convert from Excess 4 to Binary notation?
A. Subtract 4 from the Excess value
B. Add 4 to the Excess value
C. Multiply the Excess value by 4
D. Divide the Excess value by 4
Correct Answer:
A
Chapter: 27
Q432:
What is the primary purpose of floating-point notation?
A. To represent integers only
B. To represent values with fractional parts
C. To store character data
D. To encode images
Correct Answer:
B
Chapter: 27
Q433:
In floating-point notation, what does the high-order bit of the byte represent?
A. The exponent
B. The sign
C. The mantissa
D. The radix point
Correct Answer:
B
Chapter: 27
Q434:
How many bits are used for the mantissa field in the 8-bit floating-point example?
A. 3
B. 4
C. 7
D. 8
Correct Answer:
B
Chapter: 27
Q435:
In the floating-point notation example 01101011, what is the value of the exponent field?
A. 11
B. 101
C. 110
Correct Answer:
C
Chapter: 27
Q436:
What does the mantissa field represent in floating-point notation?
A. The fractional part of the number
B. The whole number part
C. The sign of the number
D. The position of the radix point
Correct Answer:
A
Chapter: 27
Q437:
How is the radix point adjusted when the exponent is positive in floating-point notation?
A. It moves to the right
B. It moves to the left
C. It stays in the same position
D. It doubles
Correct Answer:
A
Chapter: 27
Q438:
What does the floating-point pattern 00111100 represent?
A. 23/4
B. 45359
C. 45293
D. 45295
Correct Answer:
B
Chapter: 27
Q439:
How do you determine the sign of the value in floating-point notation?
A. By examining the mantissa
B. By checking the exponent field
C. By looking at the sign bit
D. By reading the radix point
Correct Answer:
C
Chapter: 27
Q440:
What is the normalized form in floating-point notation?
A. A form where the mantissa starts with 1
B. A form where the mantissa ends with 1
C. A form where the exponent is zero
D. A form where the radix point is fixed
Correct Answer:
A