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The Classic Environment

As defined in Chapter 1, “Mac OS X Component Architecture,” the Classic environment is a complete implementation of Mac OS 9.x on top of Mac OS X. To Mac OS X, Classic is nothing but another application; to a user, however, Classic is a gateway to his older software programs.

Tip

You must have at least 128MB of memory to use Classic, and a 400MHz G3 (or faster) is recommended. When it comes to Classic, more is definitely better.

Classic is a process under Mac OS X. Mac OS X must be running for Classic to work. In essence, you're booting two operating systems simultaneously.



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