Intelligent chatbots (often called intelligent virtual personal assistants) are computer programmed software that imitate human conversation — spoken or written — powered by technologies such as artificial intelligence (AI), natural language processing (NLP) and deep learning .
Origin
The origin of the concept goes back to 1911, when Radio Rex, the first voice- activated toy was released, and many years after that in 1962 IBM released IBM Shoebox which was able to perform mathematical functions as recognise speech. However, the launch of smartphone IBM Simon laid the foundation of smart virtual assistants that we know today. But the first modern digital virtual