A famous person once said: The most important skill to learn in today’s world is to know how to write a computer program. Today, computers have entered in almost all industries. Be it the autopilot in an aircraft or digital speedometer in your bike, computers in various forms surround us. Computers are extremely useful for an organization to scale up well. Gone are the days of pen and paper. Today, in order to store and access your information, you absolutely need computers.