Subject

    Computer Science

    Topic

    Computer Hardware

    What is the primary role of a system's clock signal?

    a)
    To keep track of the time of day.
    b)
    To provide a synchronizing signal that coordinates the actions of all the computer's circuits.
    c)
    To regulate the voltage supplied to the CPU.
    d)
    To generate random numbers for security purposes.

    Explanation

    The system clock generates a continuous sequence of electrical pulses. Each pulse, or 'clock cycle', triggers one step of an operation within the processor's circuits. The clock speed, measured in Hertz (Hz), determines how many cycles occur per second and thus how fast the processor can operate.

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