Operating System (OS)
Memory

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-slicing of the CPU
is a sequence of instructions
is the device where information is stored

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Operating System (OS)
Feed back queue

dispatch tasks according to execution characteristics
are used to favor real-time tasks
require manual intervention to implement properly
None of these
are very easy to implement

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