1. What do the device controllers provide to have a similar interface between them and operating system?
2. Explain why OS needs different modes of operation?
3. In the absence of OS, what is the main problem for software programmers who are writing code for different devices?
4. Explain what CPU will do when an interrupt is received?
5. Which storage is closest to CPU and provides fast access to data?
6. Why system calls run under user mode
7. Explain whether multiprocessor or multi core takes more space on mother board?

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Device Controllers and Interface with OS Device controllers provide a uniform interface to the operating system through device drivers Device drivers act as an interface between the hardware device an... View the full answer