iCloud - Learn how to set up iCloud on all your devices. Cloud computing - Mashpedia, the real-time encyclopedia. In common usage, the term "the cloud" is essentially a metaphor for the Internet.[1] Marketers have further popularized the phrase "in the cloud" to refer to software, platforms and infrastructure that are sold "as a service", i.e. remotely through the Internet.
Typically, the seller has actual energy-consuming servers which host products and services from a remote location, so end-users don't have to; they can simply log on to the network without installing anything. The major models of cloud computing service are known as software as a service, platform as a service, and infrastructure as a service. iCloud - Learn how to set up iCloud on all your devices.