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Introduction To Interrupts

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Introduction To Interrupts

An interrupt signal notifies a program that an event has occurred, prompting it to act or temporarily suspend itself. Interrupts can come from hardware (e.g., keystrokes, printer signals) or software (also called traps or exceptions). PCs support 256 software and 15 hardware interrupts. Each interrupt is handled by a specific routine, with all interrupts and handlers listed in the interrupt vector table in the first 1K of memory.

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