Cloud computing service

Cloud computing services are broadly divided into three categories: Infrastructure-as-a-Service (IaaS), Platform-as-a-Service (PaaS) and Software-as-a-Service (SaaS). Cloud computing services has three distinct characteristics that differentiate it from traditional hosting:


 * It is sold on demand &mdash; typically by the minute or the hour
 * It is elastic &mdash; a user can have as much or as little of a service as they want at any given time; and
 * It is fully managed by the provider &mdash; the consumer needs only a computer and Internet access.