L' INTELLIGENCE CYBER par Jean-Paul Pinte

Cloud computing is a model for providing information and communication technology (ICT) services (including servers, systems, storage and applications) over a network such as the internet. By taking advantage of self-service implementation and configuration, and flexible pools of virtual computers based on shared hardware in vast purpose-built data centres managed by third parties, cloud customers can rapidly increase (or decrease) their ICT capacity as needs or demands change, while avoiding capital outlays and paying only for the actual services used.

Cloud computing: An overview of economic and policy issues