C H A P T E R

4

Working With Your Operating System

An operating system, or OS, is your computer’s desktop environment that defines how the items on your desktop are represented and how you interact with them. Each OS has a different look and feel.

Your computer comes with Mac OS 9 installed as the default operating system. The first time you start your computer, it starts up using Mac OS 9. Your computer also comes with Mac OS X and Classic, a technology that allows you to use Mac OS 9 applications inside Mac OS X.

Some software applications have not yet been optimized to work with Mac OS X or Classic. They perform best in Mac OS 9. If you use only Mac OS 9–compatible software and do not need the special features of Mac OS X, continue to start up your computer in Mac OS 9. This chapter describes some of the features of Mac OS X and Classic and how to switch your OS.

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Apple powerbook g4 manual Working With Your Operating System