Cloud computing is a pay-per-use model for enabling available, convenient, on-demand network access to aNIST shared pool of configurable computing resources (e.g., networks, servers, storage, applications, services) that can be rapidly provisioned and released with minimal management effort or service provider interaction.
.1 .2 .3 .4 .51. On-demand self-service2. Ubiquitous network access3. Location-independent resource pooling4. Rapid elasticity5. Pay per use