What is a cloud?

A cloud is a combination of hardware, storage, networks, services, and interfaces that helps in delivering computing as a service. It has generally three users which are end user, business management user, and cloud service provider. The end user is the one who uses the services given by the cloud. The business management user in the cloud takes the responsibility of the data and the services given by the cloud. The cloud service provider is the one who takes care or is responsible for the maintenance of the IT assets of the cloud. The cloud acts as a common center for its users to fulfill their computing requirements.