Question on Input Output (IO) Management.

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Question Bank
5.1 What are the main issues in IO management? Explain the differences in IO for human
interaction as opposed to devices that communicate on-line.
5.2 Explain clearly how the devices are attached to the CPU and main memory through a
bus and controllers.
5.3 What are the different modes of Interrupt? How is polling achieved?
5.4 What is the difference between polling of devices and programmed mode of I/O?
5.5 Explain the difference between an internal interrupt and a software interrupt.
5.6 Explain how interrupt is handled in Linux implemented using 8086 family of processors.
5.7 How is the interrupt enabled and detected?
5.8 What is an interrupt vector? How is the interrupt service obtained with vectored
interrupt?
5.9 How is the DMA set up?
5.10 What is a device driver? Give a schematic explaining how a device driver helps establish device communication.
5.11 Explain the concept of buffering? How is the double buffering scheme organized?
5.12 Explain the concepts of spooling.
5.13 How is the information organized along sectors on a disk? What is a cylinder?
5.14 Explain different forms of latencies in a disk using diagrams.
5.15 What is disk scheduling?
5.16 Explain the difference between shortest seek first and the elevator algorithm for disk
scheduling.
5.17 Which policy would you recommend for scheduling to retrieve information from a disc.
5.18 Give constructional feature of a disk. Explain rotational delay.
5.19 What should be the considerations in determining the buffer sizes?
5.20 What is a system call? How does Kernel help resolve system calls?

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