IntroductionGreen computing can be defined as a detailed study and practice of all forms of environmentally friendly resources. The topic is studied by various IT organizations, companies and companies in all other sectors. Over the past few years, companies in the IT industry have realized that it is in their best interest to go green by adopting eco-friendly devices, software, and cloud computing. Whether it is public relations or cost reduction, green IT offers many benefits to all organizations and businesses (Bing and Yan et al., 2009, pp. 2311--2319). To begin, it’s important to think about why and how to adopt green IT. First, green computing complements industry standards, designs, development considerations, and elimination of IT operations while having minimal impact on the environment. At the same time, it also helps in reducing operational costs, which is indeed in the best interest of all organizations, businesses and corporations. Organizations use green IT devices and software to design and implement various green IT technologies (Wang, 2008, pp. 121-126). The stages included in the green IT life cycle are: strategy, design, implementation, operations and repeat operations. improvements. It is important to note that there are 5 core green IT technologies that have been advocated by GCI, including: green IT data centers, cloud computing, power optimization and virtualization. A number of companies are already using these technologies and approaches in their production processes and services. Companies like Dell and HP are also using these technologies by offering specialized PC recycling...... middle of paper ...... different phases of peak operation • Saving huge amounts of energy during operation inactive • Use environmentally friendly sources of energy • Limit the harmful effects of different IT devices and technologies • Reduce amounts of IT waste The field of green IT technologies encompasses a wide range of topics. Whether it is renewable energy sources or energy-efficient devices, GCTs will surely influence all our daily activities. In response to green computing, a number of companies, including Google, Microsoft, IBM, Sun Microsystems, Dell, HP and VIA, have adopted different energy-saving approaches. One of the main concerns of businesses and organizations around the world is tackling environmental issues, including carbon footprint. It is a measure of high levels of impact of human activities on the environment..