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<br />Some operating systems (such as UNIX or Windows in enhanced mode) use virtual memory. Virtual memory is a technique for making a machine behave as if it had more memory than it really has, by using disk space to simulate RAM (random-access memo

Processes vs Threads This is a very common interview question that has been asked at companies like Yahoo, Apple, and NCR. A process is an executing instance of an application. For example, when you double-click the