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4 cards from this section. Quick, good the night before a test.
What is the purpose of an Interrupt Service Routine (ISR)?
Think about how a computer responds to external signals.
Explain the role of the interrupt enable flag.
Consider scenarios when you do not want interruptions.
What happens when a device sends an interrupt signal to the CPU?
Consider the steps the CPU takes.
True or False: The interrupt enable flag must be disabled during critical operations to prevent unwanted interruptions.
Think about how interruptions can affect critical processes.
Design an algorithm to manage multiple device interrupts while ensuring that high-priority devices are addressed first.
Consider how you would rate devices in terms of importance.
Evaluate how the handling of interrupts in modern operating systems might differ from simpler systems.
Think about the improvements made in technology and complexity over time.
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