Practice Handling Interrupts (27.2) - Interrupts and Processor Management

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9 questions

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6 sample questions

Question 1.
What is an interrupt?
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Think of it as a call for attention from a device.
Question 2.
What does enabling an interrupt allow a CPU to do?
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What happens when the interrupt flag is set to true?
3Question 3.
What is the function of an Interrupt Service Routine?
- a) To complete the current instruction
- b) To handle requests from devices
- c) To disable interrupts
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Remember, ISRs respond to interrupts.
4Question 4.
True or False: Disabling interrupts allows the CPU to respond to device requests.
- True
- False
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Think about what happens when you turn off a switch.
Question 5.
Design a simple interrupt system for a home automation scenario where multiple devices (like lights and fans) need to be controlled.
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Consider how you might set priorities for different devices.
Question 6.
Explain how you would implement an ISR for a keyboard interrupt in an operating system.
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Think about how the system maintains state across interrupts.

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