Operating System (OS)
All of the following are task performed by the operating system except

Performing housekeeping task like file compression and disk defragmentation
Managing hardware on the computer
Provides an interface for user to interact with computer
Controlling the access that application program has to the CPU

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Operating System (OS)
A Processor

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

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