Operating System (OS)
The dispatcher

puts tasks in I/O wait
is always small and simple
None of these
actually schedules the tasks into the processor
never changes task priorities

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Operating System (OS)
A Processor

is a sequence of instructions
is the device where information is stored
is a device that performs a sequence of operations specified by instructions in memory.
None of these
is typically characterized by interactive processing and time of the CPU

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Operating System (OS)
System generation:

is always very difficult
varies in difficulty between systems
requires extensive tools to be understandable
None of these
is always quite simple

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