Since the dawn of internal combustion engines, automobile engineers, and race fanatics have been trying to increase the power and torque with less consumption of fuel. To achieve more power you have to either increase engine size or capacity, but it will increase the overall cost of the vehicle.
As these engines generate power through burning fuel internally, intake of air becomes a significant factor. The more air or in particular oxygen is supplied to the engine, the more will be the power output without increasing engine size. So for this purpose supercharger and turbochargers are invented. Their purpose is same but these use totally different approach to achieve the goal.
These mechanical devices tend to increase the efficiency and performance of your vehicles. They serve the purpose of compressing air and send it to the cylinder, which produces more power and prevent wastage of fuel. Both supercharger and turbochargers work on the same principle of forced induction, but they use different mechanisms. Below is given a comparison between supercharger and turbocharger which will help you understand their working better.