The hierarchical philosophy is that the functions of the operating system should be separated according to their complexity, their characteristic time scale, and their level of abstraction.
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Q8: Two of the most widely used approaches
Q9: The _ category of external devices are
Q10: The requested operations and data are converted
Q11: The actual queuing and scheduling of I/O
Q12: A key aspect of I/O is the
Q14: Examples of human readable external I/O devices
Q15: Windows has no way to support the
Q16: Direct memory access is the dominant form
Q17: Double buffering is when a process transfers
Q18: _ external devices are suitable for communicating
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