Explain The Difference Between The Chatbot And RPA?

Let's see the difference between chatbot and RPA:

Chatbot: A chatbot is a  pre-programmed software which acts similar to a human being. These chatbots can help the visitors to take some predetermined actions. The best thing about chatbots is that they can learn from past experience and act like according to the situation. 

RPA (Robotic process automation): RPA is a wider concept and chatbot is a very narrow or sub-topic of RPA. RPA is used to automate the complicated processes but chatbot can not.