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ABSTRACT
In recent years, many organizations benefit from sharp development of cloud computing in terms of scalability, agility, automation and resource sharing. Especially for IT departments, cloud computing afford the most innovative technologies and resources for them to focus on applications development, which are the most beneficial for organization business. On the other hand, the Capital & Operational cost can be reduced accordingly because of cloud platform. Many IT giants such as Microsoft, HP and Dell have invested billions in developing cloud platform and cloud computing research. This paper reviews the concept of cloud computing and its state of the art, and concluded the benefits to organizations in perspectives of software as a service (SaaS), infrastructure as a service (IaaS), and datacentre as a service (DaaS).
Keywords: cloud computing, software as service, architecture as a service, datacentre as a service
Introduction
The term “cloud” is used to represent the computer network of the internet. It depicts a diagram as the computer network is just like the cloud which is linked to every client via internet. With the support of high performance server, each single client is able to access their work files remotely and process them without preinstalling specific applications. Because of the development of virtualisation, end-users can work with their clients such as netbook, smart mobile or laptop in anywhere as the same as work in local as long as the internet is available.
This paper work aims to explain the concept of cloud computing in state of the art and to discuss how organizations benefit from cloud computing in perspectives of SaaS, IaaS and DaaS, and future research is concluded in the end.
Background
In the word of McCarthy: “computation may someday be organized as a public utility.” The idea of cloud computing has been
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