Cloud Computing is a model of delivering computing resources over the internet, allowing users to access and use shared resources, software, and information on demand. In cloud computing, resources such as servers, storage, databases, and applications are managed and delivered by a third-party provider, allowing businesses and individuals to use them without having to manage the underlying infrastructure. This results in increased efficiency, scalability, and reduced costs compared to traditional on-premises computing. There are three main types of cloud computing: Infrastructure as a Service (IaaS), Platform as a Service (PaaS), and Software as a Service (SaaS). Major cloud service providers include Amazon Web Services (AWS), Microsoft Azure, Google Cloud Platform (GCP), and IBM Cloud.