Cloud computing is the rapid provisioning of on-demand computer system resources and services over the internet, usually on a pay-for-use basis. Like a public utility, cloud computing relies on the sharing of resources to provide coherent resources. Businesses and organizations that make use of third-party clouds are able to focus on their core processes without spending time and money to building and maintaining computer and IT infrastructure.

Many businesses have moved (or have considered moving) to the cloud because of the immense flexibility that is present in the way services are provided. Cloud computing services offer a variety of systems including: