New and Updated Features UPDATED: Modern storage solutions such as flash-based solid-state drives (SSDs) and persistent memory are thoroughly discussed. UPDATED: Content discusses new trends and developments. Topics include advancements in event-driven servers; modern 64-bit architectures, files systems, input/output, virtualization and the cloud and more. UPDATED: Security treatment focuses on topics that are directly relevant for OS design and structure. Exciting new hardware developments, software vulnerabilities, attacks and defenses are discussed in detail. UPDATED: Linux and Android case study features new developments in the current versions of Linux and Android OS. NEW: Windows 11 case study explores the latest major release of Microsoft’s NT OS. UPDATED: Suggested readings, references and research reflect the latest operating systems. New problems are included in every chapter