The American military had a long tradition of using voice-activated systems as early as the 1970s with the original Bitching Betty. She served as the voice of the Pre-Space F-15 fighter platform, though was not a true computer generated voice. The voice actress Kim Crow recorded her phrases, and the computers simply picked the right ones at the appropriate time. A series of different programs and voice actresses would bring life to other Bitching Betties over the years, and they became integral elements of American fighters until the Artificial Intelligence revolution forever changed things.