Answer Posted / v.vijayakumar
ROM cannot be used as stack because it is not possible to
write to ROM.
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Explain various types of scheduling in operating system.
What is the purpose of the command interpreter? Why is it usually separate from the kernel?
Measurements of a certain system have shown that the
average process runs for a time T before blocking
on I/O. A process switch requires a time S, which is
effectively wasted (overhead). The CPU’s efficiency is
the fraction of its time its spends executing user
programs, i.e., executing user processes. For round robin
scheduling with quantum Q, give a formula for the CPU
efficiency for each of the following:
(a) Q = ∞
(b) Q > S + T
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