Abstract

The evolution of technology has proven to be a worthwhile revolution for humankind. Technology has touched all aspects of this world from computers to our health; no places are left where we can’t use technology. But everything comes at some cost; technology bringing ease to our lives also brings threats to our lives by degrading the environment. Now, researchers are going on to use technology in a less waste-generating manner and moreover using it to promote greenness, and broadly this concept is known as green computing. So, this chapter discusses the concept of green computing, including the evolution of green computing like how pollution created by computers and peripherals has come into the awareness of people and what measures have been chosen to reduce or deduct the polluting elements. In the latter part, the role of industry and government is mentioned, as are the different approaches to green computing, such as virtualization, power management, and cloud computing. The benefits as well as disadvantages are also discussed. In the next part, information related to blockchain is discussed, consisting of the basic terminology, helping to understand its meaning. The history along with the development of blockchain is discussed and also the application of blockchain like cryptocurrency is discussed; various kinds of blockchain are mentioned as are the challenges which should be overcome to attain greater heights in blockchain technology. In the last part the interrelation of blockchain and green computing is mentioned – how blockchain can contribute in a greater percentage to promote green computing.