| Operating System |
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| ä | Is a
program that controls the execution of |
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| application
programs |
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| ä | OS
must relinquish control to user programs and |
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| regain
it safely and efficiently |
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| ä | Tells
the CPU when to execute other pgms |
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| ä | Is an
interface between the user and |
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| hardware |
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| ä | Masks
the details of the hardware to |
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| application
programs |
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| ä | Hence
OS must deal with hardware details |
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