Taking AI to Library

In the last post I tried to determine what is creating the AI Buzz now? The answer to that was development of Machine Learning using Deep Learning techniques vis-à-vis traditional brute force approach to programming. It was also aided by development of Natural Language Parsing/Processing, referred commonly as NLP. In this post I will try to explain the concept of Machine Learning using Deep Learning. To understand this concept simply, assume that computer program is a child that is to be educated. How was / would knowledge imparted when there were no books?