The objective of green computing is to reap monetary growth and enhance the way the computing devices are used. In large data centers computational offloading is main problem due to increased demand for timely and response for real time application which lead to high energy consumption by data centers, so the aim of green computing is to find energy efficient solution which monopolize optimal utilization of the available resources. Green IT methods comprises of environmentally viable management, energy efficient computers and enhanced recycling procedures. By using different algorithm and energy efficient scheduling power consumption of virtual machine can be minimize, this paper provide an overview of different algorithms and techniques which are used to move towards the green computing
