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Table Of Contents  CertiGuide to A+ (A+ 4 Real)
 9  Chapter 7: History, Installing and Use of the MacOS

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You are Booted Up, Now What?

Let us cover some virtual memory, and show you how to keep that Mac working at its best!

Virtual memory is a way to extend the memory accessible to the computer by assigning a portion of the drive as a swap file. When the memory built-in or designated is not enough to meet the needs of the application or operating system, Mac OS X uses the file to swap out any unneeded data.

These are handy features and necessary to administrate a Mac, but let us go just a little deeper so that you can also understand how and why the occasional “Lock Up” still occurs.

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