Date Added: Mar 2013
Cloud computing a relatively recent term builds on decades of research in virtualization, distributed computing, utility computing, and networking, web and s/w services. The consequence of network based cloud computing model which is rapidly increasing in delivering computing as a utility to users worldwide is that cloud data centers have high deployment and operational costs, as well as significant carbon footprints for the environment. So attention should be paid to the need of managing energy consumption across the entire Information and Communication Technology (ICT) sector because of its large amount of CO2 emission. Despite ecological issues, the interest of the low power research has critical economical needs.