Here end-users rent cloud as an infrastructure for their companies. They choose a cloud computing provider such as Amazon EC2, Rackspace Cloud, etc. to utilize their servers and storage devices based on their requirements.
Platform as a Service (PaaS) provides the resources to development and deployment platform to businesses. From simple cloud-based applications to complex, sophisticated enterprises, you can develop and deploy any application.
Software as a Service is a cloud-based software delivery method that allows users to access data via the internet anytime from any device. Here, software vendors host their applications on the cloud and allow users to subscribe to their software for access.