A chatbot is a computer program designed to simulate conversation with human users, especially over the Internet. Chatbots can be designed to perform a wide variety of tasks, such as answering customer service inquiries, helping users make purchases, or providing personalized recommendations. Chatbots use artificial intelligence and natural language processing to understand and respond to user requests and inquiries. They can be accessed through messaging apps, websites, or mobile apps, and can be programmed to operate 24/7. Chatbots are often used in customer service, marketing, and other areas where they can help businesses interact with customers in a more efficient and convenient way.