DOS
All three previous editions of Jamsa`s book have been runaway bestsellers with hundreds of thousands of copies sold. This fourth edition covers the newest DOS version for both MS-DOS and PC-DOS. From an overview of the disk operating system to programming and disk management techniques, each chapter begins with a discussion of specific applications followed by a list of related commands.

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1. The common abbreviation for MS-DOS.

2. IBM's Disk Operating System.

3. Any disk operating system.