One of the emerging scenarios in computing technology is Green Computing. It is primarily concerned about the environmental based computing. Global warming is the critical issue to be addressed. This can be efficiently handled by means of efficient Green Computing Technology. The objective of Green computing is to attain economic viability and improve the way computing devices are used. Green IT practices include the development of environmentally sustainable production practices,

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... nt computers and improved disposal and recycling procedures. This review paper outlines the fundamentals of green computing and its methods and analyses different Green strategies and current trends in green computing. In this paper, we account the consciousness en route for Green Computing and outline the key areas where IT organizations can achieve savings in terms of energy and cost.