Cloud computing has rapidly transformed from a technological trend into a foundational pillar of modern information technology. Its influence now spans nearly every aspect of digital operations - from daily business functions and software development to innovations in artificial intelligence, big data, and the Internet of Things (IoT). This book, "Foundations of Cloud Computing: Concepts, Models, and Applications," provides readers with a comprehensive and in-depth introduction to this revolutionary field.Whether you are a student stepping into the world of IT, an educator developing curriculum content, or a professional looking to upgrade your knowledge and skills, this book offers a structured and easy-to-understand guide to core cloud computing concepts, service models, deployment architectures, and practical applications.