Implementing Interrupts and Timeouts
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To allow computers to do more than one thing at a time, they use a technique called interrupts, in which each process is given a few cycles of processor time in turn. At any one time only one process is active, but because the computer switches between them really quickly, they appear to be all running simultaneously.
Apart from supporting multitasking, interrupts are perfect for cutting down on unresponsive ...
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