An updated, revised, and comprehensive overview of the concepts related to cloud computing, including recent applications, innovations, and its future evolution.In this Essential Knowledge volume, Nayan B. Ruparelia provides an updated and revised version of Cloud Computing, first published in 2016, to address not only the fact that cloud computing has become a ubiquitous part of mainstream computing since then but also has made strides in other key aspects of the technology’s development, including:cloud computing’s history,updated security fundamentals that provide examples of Identity and Access Management (IAM) use that illustrate the difference between on-premise (i.e., conventional) security and cloud-based security implementation and Security Information and Event Management SIEM),an updated discussion of data migration to the cloud,a new chapter on data integrity,cloud native computing,the use of microservice design patterns,cloud automation using orchestrators and tools such a