A term that is used for everything that involves delivering various hosted services all over the web, cloud computing is considered as computing software, computation, access of data and the storage service that does not require end-user information of the considerable location configuration of all the systems that often deliver the services. In the process of cloud computing, all the applications, information and various data resources are managed in a manner that they become the part of a virtual environment. The process of cloud computing involves various virtual hosted environments permitting all the users to easily connect to various services being hosted over the web. The major reason behind it is called cloud computing service because the overall data and the applications often exist on a “cloud” of various web servers. In other words, the process can easily be defined as simply sharing and basic use of various shared applications and all the data resources of a virtual network environment to get your job done without involving the ownership and the process of management of the particular network’s resources and various applications. When talking about the dimension data cloud computing, it is seen that these services are usually separated into three basic categories:
The first category i.e. Infrastructure-as-a-Service (IaaS) is a direct stipulation in which any association outsources various tools that are used to maintain different operations. IT also covers the hardware, storage, various servers and different types of networking components. Cloud computing service providers possess the tools and are also responsible for maintain and hosting them at the same time. User pays on a per-use basis. Within any enterprise, cloud computing permits an enterprise to pay just as much capability as required and bring more online as much as possible. The second category, Platform as a Service (PaaS), is the release of a cloud computing platform and the solution heap as a service. Its offerings facilitate the deployment of various applications without any expenses and the complications of purchasing the basic hardware and software and provisioning holistic capacities, offering all of the facilities that are needed to support the entire lifecycle. The third category, software-as-a-service (SaaS) includes the seller of supplies of the hardware infrastructure and the software product and interacts with the users with the help of the front-end portal.