Artificial intelligence refers to the development of computer programs that can perform tasks that would typically require human intelligence to complete. These programs are designed to learn from and adapt to the information they are fed, making them able to improve their accuracy and efficiency over time. AI technologies include machine learning, neural networks, natural language processing, and robotics, among others. They are used in a variety of applications, including image and speech recognition, autonomous vehicles, personal assistants, financial trading, and healthcare.