Guide to Operating Systems, Third Edition provides the information needed to understand and support common desktop and network operating systems in use today. Major concepts such as installation, upgrading, file system organization, security, and network connectivity, as they apply to Microsoft Windows, Linux, Novell NetWare, and Apple Mac OS, are covered in detail. Each chapter offers extensive learning aids, including review questions, hands-on projects, and case studies that reinforce concepts and help students apply them to real-world applications.