CLOUD COMPUTING

Cloud computing is Internet-based ("cloud") development and use of computer technology ("computing"). The cloud is a metaphor for the Internet (based on how it is depicted in computer network diagrams) and is an abstraction for the complex infrastructure it conceals.[1] It is a style of computing in which IT-related capabilities are provided “as a service”,[2] allowing users to access technology-enabled services from the Internet ("in the cloud")[3] without knowledge of, expertise with, or control over the technology infrastructure that supports them
Example:, Amazon -- elastic compute cloud - ec2
Google -- Google app engine


Cloud computing uses data, S/W application, and processing power in a remote way, companies can buy s/w as a utility computing, -- Cloud computing is a threat to sofware application providers as no local s/w will be used in future.