The document defines and describes cloud computing. It states that cloud is a service that provides servers, storage, network resources and applications through data centers accessed over the internet. Some examples of cloud services are Google Drive, Dropbox and Microsoft OneDrive. The advantages are that information can be accessed from any device with an internet connection and companies don't need expensive hardware. It then describes the different types of cloud including public, private and hybrid clouds as well as infrastructure as a service (IaaS), platform as a service (PaaS) and software as a service (SaaS).