Practice Module Units (23.2) - Input-Output Primitives - Computer Organisation and Architecture

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6 sample questions

Question 1.
What is the role of an I/O module?
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Think about how devices connect to the CPU.
Question 2.
Define programmed I/O.
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Consider how the CPU interacts with slow devices.
3Question 3.
What is the main function of an I/O module?
- A) To process data
- B) To interface CPU with memory
- C) To connect peripheral devices to the CPU
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Identify what connects the CPU to external hardware.
4Question 4.
True or False: Programmed I/O is more efficient than interrupt-driven I/O.
- True
- False
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Compare the waiting times involved in both methods.
Question 5.
Analyze a scenario where a CPU directly connects multiple peripherals. What issues might arise, and how could I/O modules mitigate these problems?
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Think about the operational speeds and complexities involved.
Question 6.
If the operating system needs to handle large data transfers efficiently, compare the use of programmed I/O versus DMA in this scenario.
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Consider the impact on CPU performance and responsiveness.

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