Learning has been a recurrent and inseparable activity of human being since ever. People have been inventing and discovering various methods and techniques to improve its acquisition process and ways. One’s progress and development has always been evolutionary as regards to learning versatility. One has come to know various tactics, techniques and technologies according to the developing circumstances. Science and technology changes the whole internal mindset as well as external perspective. Computer changes the whole scenario. Machine learning is one of the most exciting recent technologies in Artificial Intelligence. Learning algorithms in many applications that’s we make use of daily. Every time a web search engine like Google or Bing is used to search the internet, one of the reasons that works so well is because a learning algorithm, one implemented by Google or Microsoft, has learned how to rank web pages. Every time Facebook is used and it recognizes friends' photos, that's also machine learning. Spam filters in email saves the user from having to wade through tons of spam email, that's also a learning algorithm. In this paper, a brief review and future prospect of the vast applications of machine learning has been made.