文章基本信息

标题：An emerging technology today in computer science – cloud computing
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作者：A.Prathyusha
期刊名称：International Journal of Advanced Research in Computer Engineering & Technology (IJARCET)
印刷版ISSN：2278-1323
出版年度：2014
卷号：3
期号：12
页码：4173-4183
出版社：Shri Pannalal Research Institute of Technolgy
摘要：Cloud computing is the latest effort in delivering computing resources as a service. It represents a shift away from computing as a product that is purchased, to computing as a service that is delivered to consumers over the internet from large-scale data centres – or “clouds”.Cloud Computing has been mentioned for just under two years in relation to services or infrastructural resources, which can be contracted over a network. Thus, the idea of renting instead of buying IT is nothing new. And so, Cloud computing has many antecedents and equally as many attempts to define it. The players in the large world of clouds are Software as Service providers, outsourcing and hosting providers, network and IT infrastructure providers and, above all, the companies whose names are closely linked with the Internet'sCommercial boom. But, all these services in combination outline the complete package known as Cloud Computing – depending on the source with the appropriate focus. That which long ago established itself in the private environment of the Internet is now, noticeably, coming to the attention of businesses too. Not only developers and startups but also large companies with International activities recognize that there is more to Cloud Computing than Just marketing hype. Cloud Computing offers the opportunity to access IT resources and services with appreciable convenience and speed. Behind this primarily, is a solution that provides users with services that can be drawn upon on demand and invoiced as and when used. Suppliers of cloud services, in turn, benefit as their IT resources are used more fully and eventually achieve additional economies of scale. Cloud Computing offers flexibility whilst simultaneously reducing costs – with the positive side effect of sustainability.
关键词：Cloud; Security; Encryption; Privacy; Resource; references;And Infrastructure.