期刊名称：International Journal of Computer Technology and Applications
电子版ISSN：2229-6093
出版年度：2012
卷号：3
期号：2
页码：676-681
出版社：Technopark Publications
摘要：The presented paper deals with how remotely managed computing and IT resources can be beneficial in the developing countries like India and Asian sub-continent countries. This paper not only defines the architectures and functionalities of cloud computing but also indicates strongly about the current demand of Cloud computing to achieve organizational and personal level of IT supports in very minimal cost with high class flexibility. The power of cloud can be used to reduce the cost of IT - resources and infrastructure with minimum risk and great efficiency.Cloud computing can be used to host a variety of applications such as vast and complicated business applications, enterprise database, e-commerce applications, payment gateway, software development and testing tools, on-demand applications and many more. Cloud computing enables organizations to increase hardware utilization rates tremendously, and to scale up the business needs instantly, without having to invest in new infrastructure, train new personnel, or license new software products. It also creates several new classes of opportunities to develop a cost effective generation of network services, in a very less amount of time and for less money. Minimization of cost is the prime need of any developing country and the cloud computing provides a full proof way to run on the cheapest technology ever developed. The cloud computing brings a new level of efficiency and economy to deliver Information Technology Resources (ITR) on demand, and in the process it opens new business models, creates new icons to work, creates new business opportunities and open up entire new face of Information Technology in a secure and cost effective environment.There are several ranges of cloud computing implementations. Cloud computing may be implemented by service providers, that is, Public clouds or in enterprise datacenters, that is, private cloud that allocate a large number of resources and capabilities so that applications can scale from one to thousands of servers in a short time. Emerging models such as virtual datacenters allow customers to reserve capacity and work with dedicated resource within a cloud, increasing the ability to manage cost and service levels. Hybrid clouds can further optimize benefits to an organization by combining the needed elements of public clouds, enterprise clouds, and enterprise datacenter technology.The Cloud Computing Architecture of a cloud solution is the structure of the system, which comprises on-premise and cloud resources, services, middleware, and software components, geo-location, the externally visible properties of those, and the relationships between them. The term also refers to documentation of a system's cloud computing architecture. Documenting facilitates communication between stakeholders, documents early decisions about high-level design, and allows reuse of design components and patterns between projects. Architecture of clouds can provide software as a service, platform as a service, infrastructure as a service, and so on. In all the cases, virtualization plays a vital role.
关键词：Cloud; cost; public cloud; private cloud; hybrid cloud; datacenters; virtualization; software as a service; platform as a service; infrastructure as a service; ITR
