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Cloud Computing: High Performance Computing for Business: Cloud computing is fast invading markets globally because of its operational efficiency and for many benefits in IT service delivery. Mid-size companies, mainly SMEs benefit greatly with this new technological trend because they are able to leverage markets which was not possible earlier with traditional computing methods or models. An overview of the benefits of cloud computing in terms of computing performance in enhancing business value is briefly outlined in this document.

What is Cloud Computing?

A standard definition for this term is not available, but cloud computing is a method of providing a standard set of shared computing resources that includes applications, storage, networking, development and deployment and business process. Cloud computing can be understood as an approach to a shared infrastructure in which large pool of systems are linked together in public or private networks to provide IT services. The resources available in the common pool are based on an underlying internet foundation and the cloud computing model allows these resources to be used or acquired or provisioned based on the processing need or based on certain business assigned rules.

A business company can use the appropriate resource to accomplish a task and return the resource back to the pool. From the perspective of the user the technology virtually remains invisible. Cloud computing service is available for many service areas and the major services are: IaaS, PaaS, SaaS and BPaaS. They are briefly given below:

Infrastructure as a Service (IaaS) allows users to obtain storage, networks, and basic computing resources as a service. Users can deploy systems software (an OS) on the infrastructure.

Platform as a Service (PaaS) provide the facility to build and deploy newly developed applications on the cloud infrastructure. PaaS also has the ability to provide a computing environment and the related development and deployment stack needed to deliver a solution to the consumer.

Software as a Service (SaaS) offers to deliver the application in which the processes are matured to run on a cloud infrastructure. The application can be accessed from clients in different locations through a web-browser. A typical example is web-based email.

Business Process as a Service (BPaaS) allows delivery of an entire business process as a service via the internet. Some examples are payroll, e-commerce, etc.

The cloud computing services are available as three models namely the private cloud which is a secure infrastructure owned and used internally by an organization, like in a corporate office; next is the public cloud model which allows global use of resources, but the infrastructure is owned by one party, like Gmail from Google; the other model is called the hybrid cloud which is a combination of both private and public cloud model scenarios.

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