This document discusses chatbots, which are computer programs designed to simulate conversation with users over the Internet. There are two main types: personal assistants that can handle a variety of information using artificial intelligence, and bots designed for specific tasks or scenarios. The document then provides examples of companies using chatbots, such as Uber allowing users to request rides directly through Facebook Messenger without needing the Uber app. Overall chatbots offer benefits like improving customer service and saving employee time.