Operating System (OS)
Block or buffer caches are used

to improve disk performance
to handle interrupts
to speed up main memory read operation
to increase the capacity of main memory
None of these

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Operating System (OS)
A program

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

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