Green computing, also called green technology, is the environmentally sustainable to use of computers and related resources like - monitors, printer, storage devices, networking and communication systems - efficiently and effectively with minimal or no impact on the environment. The principle behind energy efficient coding is to save power by getting software to make less use of the hardware, rather than continuing to run the same code on hardware that uses less power. This paper, first discuss the connotation of green computing and sketch researcher’s view on the next generation of IT systems for green computing. This paper will help the researchers and administrators to have a clear understanding of Green Computing and Green Cloud Computing. It also defines the security issues and the solution methods to these issues. Green computing is the environmentally responsible use of computers and related resources Servers and Peripherals as well as reduced resource consumption and proper disposal of electronic waste (e-waste). Finally, paper point out future directions of research and conclude the paper
Keywords: Eco Friendly Computing, Energy Efficient Coding, Green Computing, Electronic waste, Green Cloud computing.
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