81. OCR A Level (H446) SLR13 – 1.4 Floating point binary part 3

What restricts the range of numbers that can be stored in a particular number of bits?

• Having a fixed binary point

• Increasing the number of bits

• Using a floating binary point

• Decreasing the number of bits

What is the solution for greater flexibility in the range and precision of numbers?

• Fixed point binary

• Floating binary point

• Normalized numbers

• Two's complement representation

What is the largest number that can be stored in the first 8-bit number format mentioned?

• 7.9375

• 63.5

• 15.5

• 3.96875

What does the most significant bit represent in two's complement representation?

• One for a positive number

• One for a negative number

• Zero for a positive number

• Zero for a negative number

What are the two parts a floating point number is split into?

• Base and coefficient

• Sign and magnitude

• Whole and fractional part

• Mantissa and exponent

What does a positive exponent indicate in floating point binary numbers?

• Increase the number's size

• Move the binary point to the right

• Decrease the number's value

• Move the binary point to the left

How many bits represent the mantissa and exponent in the examples given?

• 3 bits mantissa, 5 bits exponent

• 6 bits mantissa, 2 bits exponent

• 5 bits mantissa, 3 bits exponent

• 4 bits mantissa, 4 bits exponent

What is the correct normalized representation of positive numbers?

• Start with 01

• Start with 10

• Start with 11

• Start with 00

What IEEE standard defines the format for floating point binary?

• IEEE 488

• IEEE 802

• IEEE 1394

• IEEE 754

What caused the failure of the American Patriot missile battery in 1991?

• A communication error

• A hardware malfunction

• An arithmetic error

• A software bug