The term "ChatterBot" was originally coined by Michael Mauldin (creator of the first Verbot, Julia) in
1994 to describe these conversational programs.
Wikipedia defines chatbot as “ A chatbot (also known as a smartbots, talkbot, chatterbot, Bot, IM bot,
interactive agent, Conversational interface or Artificial Conversational Entity) is a computer program or
an artificial intelligence which conducts a conversation via auditory or textual methods. Such
programs are often designed to convincingly simulate how a human would behave as a conversational
partner, thereby passing the Turing test. Chatbots are typically used in dialog systems for various
practical purposes including customer service or information acquisition. Some chatterbots use
sophisticated natural language processing systems, but many simpler systems scan for keywords within
the input, then pull a reply with the most matching keywords, or the most similar wording pattern, from
Chatbot platforms: Today, most chatbots are either accessed via virtual assistants such as Google
Assistant and Amazon Alexa, via messaging apps such as Facebook Messenger or WeChat, or via
individual organizations' apps and websites.
Usage categories Chatbots can be classified into usage categories such as conversational commerce (e-
commerce via chat), analytics, communication, customer support, design, developer tools, education,
entertainment, finance, food, games, health, HR, marketing, news, personal, productivity, shopping,
social, sports, travel and utilities.
Source : Wikepedia. https://en.wikipedia.org/wiki/Chatbot