Chatbots are a form of software that converses using text-based communication in a (more or less) human-like manner. The earliest chatbots such as ELIZA used very simple pattern matching, and more compelx variants of this are widely used for customer support on websites. Chatbots, such as ChatGPT powered by {{large language modles} have transformed the fluidity of chatbots. Speech-based chatbots are also possible, but are more often known by different terms, such as conversational agents.
Used in Chap. 1: page 3; Chap. 13: pages 203, 216, 217; Chap. 17: page 285; Chap. 18: page 295; Chap. 19: pages 314, 318, 319; Chap. 20: page 337; Chap. 23: page 384