HAL was the computer from 2001: A Space Oddesy and from its sequel,
2010. A fun fact about the movie was that when it was produced, IBM was the only company that sold computers. Microsoft and Apple didn'
t exist. So, to not make references, the letters in IBM were moved down one letter, creating HAL. HAL was also effective because he didn'
t have a face, and wasn'
t doing anything wrong.