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Computer Science · Oct / Nov 2023 · Paper 11 · Question 9

0478

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The question as text

An interrupt is a type of signal that is used in a computer.

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  • 9(a)[1]

    Any one from:

    Operating system // Interrupt handler

  • 9(b)[5]

    Any five from:

    e.g.

    Key press generates the interrupt
    Interrupt given a priority
    Interrupt is sent to CPU
    Interrupt is placed in a queue
    CPU stops current task to check the queue/service the interrupt …
    … using an interrupt service routine
    If key press is highest priority the interrupt is processed

  • 9(c)(i)[2]

    Any two suitable hardware example e.g.:

    Moving the mouse
    Clicking a mouse button
    Plugging in a device
    Paper jam in printer
    Printer out of paper

  • 9(c)(ii)[2]

    Any two suitable software examples e.g.:

    Division by zero
    Two processes accessing the same memory location
    Null value
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