Computing as a service has seen a phenomenal growth in recent years. The primary motivation for this growth has been the promise of reduced capital and operating expenses, and the ease of dynamically scaling and deploying new services without maintaining a dedicated compute infrastructure. Hence, cloud computing has begun to rapidly transform the way organizations view their IT resources.
From a scenario of a single system consisting of single operating system and single application, organizations have been moving into cloud computing, where resources are available in abundance and the user has a wide range to choose from.
Cloud computing is a model for enabling convenient, on-demand network access to a shared pool of configurable computing resources that can be rapidly provisioned and released with service provider interaction or minimal management effort.
Here, the end-users need not to know the details of a specific technology while hosting their application, as the service is completely managed by the Cloud Service Provider (CSP). Users can consume services at a rate that is set by their particular needs.
This on-demand service can be provided any time. CSP would take care of all the necessary complex operations on behalf of the user. It would provide the complete system which allocates the required resources for execution of user applications and management of the entire system.
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