engineering computer science MCQ #193

A CPU has a clock cycle time of 0.5ns. If it takes 4 cycles to execute an instruction, what is the instruction execution time?

engineering computer science MCQ #193

  1. Question 1

    Q1. A CPU has a clock cycle time of 0.5ns. If it takes 4 cycles to execute an instruction, what is the instruction execution time?

    • A) 1ns
    • B) 2ns
    • C) 3ns
    • D) 4ns

    Answer: 2ns

    Explanation: Instruction execution time = number of cycles * clock cycle time = 4 * 0.5 = 2ns