We live in a world where consumer products, goods, vehicles, industrial and utility components, sensors, and other everyday objects are being combined with Internet connectivity and powerful data analytic capabilities that promise to transform the way the world works, plays and lives. Through the Internet of Things (IoT), we are generating a humongous volume and variety of data. There is a need for a computing paradigm that allows us to perform computations on the data before it is sent to the cloud, where the opportunity to act on data might be lost. In this paper, we present one such technique called Edge computing, or Fog computing and describe some of its applications.