Over the years, there has been a substantial change in the banking industry. All systems have embraced the use of mathematical models to maximize profits and maintain customer satisfaction. Computers systems have aided in easing out any tedious calculations and have helped in forecasting market trends. Thus financial advisors highly rely on computer systems, mathematical methods and statistical data to make key decisions in the banking industry. This paper gives an overview picture of how banks apply computational and data analysis methods. Banks do play a vital role in the economy hence the need to identify modern and more effective ways of managing them. We conducted a research using existing bank records, newspapers and online data.