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There is potential for a lot of confusion surrounding the definition of cloud computing. In its basic conceptual form, cloud computing involves five primary fundamentals: shared resources, on-demand, elasticity, networked access, and usage-based metering. Dr. K. C. Das HOD, PG Dept. of Lib & Inf.Sc., Utkal <strong>University</strong>,Bhubaneswar 17 April 2013 2
Shared resources are the shared pool of IT resources, such as applications, processors, storage and databases. On-Demand allows users to call up resource from the cloud and use them as needed. When the user is finished with the resources they release them in a self-service fashion. Elasticity, or flexibility that includes scalability, allows the cloud to be dynamic to the users demands allowing the cloud to satisfy peak demands and then release resources when demand subsides. Networked access allows the cloud to be accessible widely, primarily though the internet. Lastly, the usage-based metering allows users of the cloud to pay for the services when needed and used and to release them when they are no longer need, resulting in many benefits including cost and storage efficiency. Dr. K. C. Das HOD, PG Dept. of Lib & Inf.Sc., Utkal <strong>University</strong>,Bhubaneswar 17 April 2013 3
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