This part of the course provides a comprehensive introduction to cloud computing, starting with its fundamental concepts, models, and deployment strategies. It includes three modules that cover everything from the basic definition and benefits of cloud computing to the specific service models like IaaS, PaaS, and SaaS, and different deployment options such as public, private, and hybrid clouds. The classes incorporate practical exercises like case studies and scenario-based decision making to help students understand the applicability of cloud computing in real-world scenarios and the factors that influence the choice of a particular deployment or service model.