What is Cloud concepts?

Cloud computing refers to the delivery of computing services—including servers, storage, databases, networking, software, analytics, and intelligence—over the Internet (“the cloud”) to offer faster innovation, flexible resources, and economies of scale. Common cloud concepts include Infrastructure as a Service (IaaS), Platform as a Service (PaaS), and Software as a Service (SaaS), each providing different levels of abstraction and control. Cloud computing is commonly used for data storage, application hosting, content delivery, disaster recovery, and software development and testing, among many other applications.