Functions of operating system, Operating System

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What is input output operation ?

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Write on short note DMA. Direct M emory Access (DMA) is a technique for transferring data from  main to a device without passing it through the CPU. Computers that have

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Define the Main reason to encrypt a file Major reason to encrypt a file is secure it for transmission.

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Define the Sleep (sec) Function Sleep function suspends execution of this process for sec number of seconds. While this function is used in our example for consistency, other f

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