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SAMS Teach Yourself Unix in 10 Minutes by Robert Shimonski

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Multitasking

In this section, we will cover what is known as multitasking and how it works with Unix. Multitasking is the capability of a CPU (central processing unit), which is the brain of your Unix system, to handle more than one operation at a time. For instance, the capability to run a word processing tool and an email client at the same time without crashing your computer would be considered multitasking. Unix allows you to multitask in that it lets you run more than one process at a time. Remember, with Unix, every command or program that you use is considered a process.

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