What is Artificial Intelligence?

The words AI, Machine Learning, Neural Networks . . . have grabbed the attention of the whole world. According to Prof. Andrew Ng, Stanford, "AI is the new Electricity". Years ago, electricity had a dramatic impact on every aspect of our life. AI too is expected to change every aspect of our life in the years to come.

But what is AI? This section gives a basic overview of the subject. I have taken care to minimize the technical content to focus on the conceptual understanding more than anything else.