Practice Programmed I/o (24.6.1) - External Devices and Their Types - Computer Organisation and Architecture

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6 sample questions

Question 1.
Define human-readable devices.
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Think of devices that provide visual output.
Question 2.
What is programmed I/O?
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How does the CPU manage to fetch data from I/O devices?
3Question 3.
What type of devices display information in a way that humans can easily understand?
- A) Machine-readable devices
- B) Virtual devices
- C) Human-readable devices
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Think of devices like monitors and printers.
4Question 4.
True or False: In programmed I/O, the CPU can perform other tasks while waiting for data transfer.
- True
- False
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Consider how the CPU engages with devices.
Question 5.
Explain how implementing DMA could increase system efficiency in a computer that frequently transfers large files.
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Consider the implications of reducing CPU overhead.
Question 6.
Analyze the consequences of excessive busy waiting in programmed I/O systems for the overall performance of a computer.
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Reflect on how the CPU manages time and tasks in programmed I/O.

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