Question
What is an interrupt? Explain the steps of interrupt processing with the help of a diagram. Explain the design issues for implementing interrupt-driven Input/Output (I/O).
Answer :
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Skip in 10
An interrupt is a mechanism that allows a program to temporarily halt its normal execution to service an event, after which it resumes its normal sequence. This mechanism is crucial for handling real-time events, input/output operations, and managing system resources efficiently. Interrupt processing involves several steps. First, the interrupt request (IRQ) is sent by an I/O device or software. The processor then checks whether it is allowed to handle the interrupt. If the interrupt is enabled, the processor saves its current state (such as the program
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