Computer Architecture Quiz

Which of the following is true about Modified Booth's algorithm?

• It reduces the number of partial products by encoding three bits at a time

• It increases the number of partial products compared to Booth's algorithm

• It cannot handle negative numbers

• It is slower than simple binary multiplication

Which of the following best describes the restoring division algorithm?

• Subtract divisor from dividend and restore if remainder is negative

• Adds the divisor repeatedly until dividend becomes zero

• Uses shift and add operations without restoring the remainder

• Uses floating-point approximations

What is the main reason for normalizing floating-point numbers after arithmetic operations?

• To maximize the precision by adjusting the mantissa and exponent

• To convert the number into integer format

• To reduce the size of the floating-point number

• To avoid overflow errors

In Booth's algorithm, when the bit pair transitions from 10 to 01, what operation is performed on the multiplicand?

• Add multiplicand

• Subtract multiplicand

• No operation

• Shift right

Which category of instruction set focuses on minimizing the number of instructions per program by using complex instructions?

• RISC (Reduced Instruction Set Computer)

• CISC (Complex Instruction Set Computer)

• VLIW (Very Long Instruction Word)

• SISD (Single Instruction Single Data)

In immediate addressing mode, the operand is:

• Stored in a register

• Stored in memory and addressed by instruction

• Given explicitly as part of the instruction

• Located indirectly through a pointer

What is the correct sequence of phases in the instruction cycle?

• Fetch → Decode → Execute → Store

• Decode → Fetch → Execute → Store

• Execute → Fetch → Decode → Store

• Fetch → Execute → Decode → Store

A microprogrammed control unit uses which of the following to generate control signals?

• Hardwired combinational logic

• Microinstructions stored in control memory

• Floating point units

• Cache memory

Which of the following formulas correctly calculates CPU execution time?

• CPU Time = (Instruction Count × CPI) / Clock Rate

• CPU Time = (Clock Rate × CPI) / Instruction Count

• CPU Time = Instruction Count × Clock Rate × CPI

• CPU Time = CPI / (Instruction Count × Clock Rate)

MIPS (Million Instructions Per Second) is a measure of:

• CPU clock frequency

• Number of instructions executed per second (in millions)

• Floating point operations per second

• Memory speed