Overview of Big Data

Presently Big Data is one of the major and booming technology of this century which impact all most all streams and fields of this era. The significant research and development is improved as time went with all stream or fields. In this paper, an outline of the applications of big data are introduced with broad classification along with its tools. The research centers of India for Big Data are listed which can help to explore more knowledge along with the challenges and opportunities of the technology are listed.