This is a convenient pocket reference of all the essential DOS features and commands. This guide is designed as a memory refresher for DOS users who are working at their computers and need to look up a specific command or task. The book features the special lay-flat binding that lets users keep the book open flat to any page while they type at their keyboards. The commands are presented in alphabetical order, and each listing contains a brief overview, along with a format section that shows how to enter the command. Following the format section, notes explain the command in detail, and the author provides examples of how the command is used.