Subject

    Computer Science

    Topic

    Computer Hardware

    Which device uses IRQ 6 by default?

    a)
    Keyboard
    b)
    IDE
    c)
    Floppy drive
    d)
    Video card

    Explanation

    Legacy IRQ mapping: 6 = floppy, 1 = keyboard, 14/15 = primary/secondary IDE. Knowing defaults helps when resolving resource conflicts on older systems.

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