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Key Questions
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After you have finished this chapter, you should be able to answer the following questions.

4.1  The Components of System Software  What are the three components of system software?
4.2  The Operating System: What It Does  What are the principal functions of the operating system?
4.3  Other System Software: Device Drivers & Utility Programs  What are the characteristics of device drivers and utility programs?
4.4  Common Operating Systems  What are some common desktop, network, and portable OSs?
4.5  The OS of the Future  What are some future directions that operating systems might take?







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