Computer Architecture

What is the range of a signed 8-bit number in two’s complement representation?

• 0 to 255

• -127 to 127

• -128 to 127

• -256 to 255

How many bits are used in IEEE 754 single-precision floating-point representation for the exponent?

• 8

• 10

• 11

• 23

Which adder design is faster due to parallel carry generation?

• Ripple carry adder

• Carry save adder

• Carry look-ahead adder

• Serial adder

In the Booth multiplication algorithm, the sequence “01” in the multiplier represents what operation?

• Add and shift left

• Subtract and shift left

• Add and shift right

• No operation

1. Carry-save addition is primarily used in which operation?

• 1. Division

• 1. Multiplication

• 1. Subtraction

• 1. Logical operations

Which part of the floating-point representation determines the magnitude of the number?

• Sign bit

• Exponent

• Mantissa

• Base

What is the result of adding binary numbers 1101 and 1011 using a ripple carry adder?.

• 11000

• 10110

• 11010

• 11100

What is the role of the carry-lookahead generator in a carry look-ahead adder?

• Minimize logic gates

• Reduce hardware cost

• Speed up carry computation

• Ensure ripple-free addition

In IEEE 754 floating-point representation, how is a normalized number identified?

• Exponent field is zero.

• Mantissa field starts with 1.

• Exponent is Biased

• The sign bit is zero

What is the typical bias value used in IEEE 754 single-precision format?

• 127

• 128

• 1023

• 255