The Survey and Future Evolution of Green Computing

The concept of green computing has begun to spread in the past few years, gaining increasing popularity. Besides the widespread sensitivity to ecological issues, such interest also stems from economic needs, since both energy costs and electrical requirements of IT industry around the world show a continuously growing trend. In this paper, we first discuss the connotation of green computing and sketch our view on the next generation of IT systems for green computing. Subsequently, we identify key issues relevant to green computing and evaluate different approaches to these problems. Finally, we point out future directions of research and conclude the paper.