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Two processors A and B have clock frequencies of 700 Mhz and 900 Mhz respectively. Suppose A can execute an instruction with an averageof 3 steps and B can execute with an average of 5 steps.For the execution of the same instruction which processor is faster
  • a)
    A
  • b)
    B
  • c)
    Both take the same time
  • d)
    Insufficient information
Correct answer is option 'A'. Can you explain this answer?
Most Upvoted Answer
Two processors A and B have clock frequencies of 700 Mhz and 900 Mhz r...
Processor Speed and Instruction Execution Steps

Explanation:

  • The clock frequency of a processor is the number of clock cycles per second.

  • The execution time for an instruction is the number of clock cycles required to execute the instruction multiplied by the length of a clock cycle.

  • Processor A has a clock frequency of 700 MHz, so its clock cycle length is 1/700 MHz = 1.43 ns.

  • Processor B has a clock frequency of 900 MHz, so its clock cycle length is 1/900 MHz = 1.11 ns.

  • The average number of steps required to execute an instruction on Processor A is 3, so the execution time for an instruction on Processor A is 3 x 1.43 ns = 4.29 ns.

  • The average number of steps required to execute an instruction on Processor B is 5, so the execution time for an instruction on Processor B is 5 x 1.11 ns = 5.55 ns.

  • Since the execution time for an instruction on Processor A is less than the execution time for an instruction on Processor B, Processor A is faster.



Therefore, option 'A' is the correct answer.
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Two processors A and B have clock frequencies of 700 Mhz and 900 Mhz r...
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Two processors A and B have clock frequencies of 700 Mhz and 900 Mhz respectively. Suppose A can execute an instruction with an averageof 3 steps and B can execute with an average of 5 steps.For the execution of the same instruction which processor is fastera)Ab)Bc)Both take the same timed)Insufficient informationCorrect answer is option 'A'. Can you explain this answer?
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