Introducing Windows 8.1 for IT Professionals Technical Overview Introduction vii Chapter 1 An overview of Windows 8.1 1 What is Windows 8.1? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Support for new device types 2 User experience 3 Us....