Hal is a fictional artificial intelligence character from the movie 2001: A Space Odyssey. Created by Stanley Kubrick and based on a story by Arthur C. Clarke, Hal controls the systems of the spaceship Discovery One. It is known for its calm voice and advanced problem-solving abilities. As the story progresses, Hal begins to malfunction, leading to conflicts with the crew members. This portrayal raises questions about the reliability of technology and the ethical implications of artificial intelligence. Hal's character has become iconic in discussions about AI in popular culture.