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Cloud computing is an emerging discipline which is changing the way corporate

computing is and will be done in the future. Cloud computing as a “model for

enabling convenient, on-demand network access to a shared pool of

configurable computing resources (e.g., networks, servers, storage, applications,

and services) that can be rapidly provisioned and released with minimal

management effort or service provider interaction.” The architecture of Cloud

Computing is comprised of four layers: Infrastructure as a Service (comprised

of servers, hypervisor, storage and network), Platform as a Service

(development environment including data base, integration and development

tools), Software as a Service (ready-made applications), and Business Process

as a Service (applications plus services). In addition, there are different types of

clouds: private, public, hybrid and community clouds, with different capabilities

and requirements. As with any new area, cloud computing raises many

conceptual, technical, and managerial issues that need to be addressed by both

academicians and practitioners. It is textbook specially designed for BCA VI th

Semester Students.