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Chapter 5. Understanding Files and Direc... > Introducing the DOS File System

Introducing the DOS File System

Two primary roles of a disk operating system are storing and retrieving data. This chapter introduces you to the fundamental ways in which DOS handles these roles. To provide data storage and retrieval, the operating system must provide a common method for file storage and retrieval so that any software package can access information easily and quickly. It is also important that DOS provide these services without your having to know the internal details of how the disk works and why.

DOS generally insulates you from the technical details involved in storing and retrieving data on your computer. You must, however, prepare disks by formatting them, and you might occasionally have to repair them. In this chapter, you learn information about the most basic part of DOS—the file and directory system. After you've mastered this information, you will have a firm footing for understanding DOS completely.


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