What are Interrupts?

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Q:
What are Interrupts?

A:
Interrupts are what your 4 year old generates every time you try to have any kind of conversation with someone (just couldn't resist).

It's also a computer term (surprise). Normally called Interrupt Requests (IRQ), they are basically calls made from a hardware device to get the "attention" of the CPU (similar to the way a 4 year old gets an adult's attention, just not as annoying).

For example, if a disk drive needs to get the attention of the CPU to perform a task, it sends an "interrupt" that allows it to have access to the system.

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