Cloud Computing

• Cloud computing: the delivery of computing as a service rather than a product, whereby shared resources, software, and information are provided to computers and other devices as a utility over a network (typically the Internet).
• Cloud computing dates back to the 1960s, when John McCarthy opined that "computation may someday be organised as a public utility."
• The term "cloud" is used as a metaphor for the Internet, based on the cloud drawing used in the past to represent the telephone network