Ancilla

Ancillas are a type of Forerunner artificial intelligence. They come in several varieties, each designed for different purposes and possessing differing capabilities. They can be stored within a Forerunner's armor, able to be accessed by a user at will. Ancillas can also be housed within personal shells like those of the Monitors, ships, buildings and various forms of machinery. They typically possess personalities approximating that of a Forerunner, and in this respect are quite similar to UNSC "Smart" AIs.

The Monitors, Contender-class AIs and the personal Ancillas housed within Forerunner body armor are all examples of Ancillas.

Trivia

 * Bornstellar's relationship with his ancilla is strikingly similar to that of John-117 and Cortana. Like Cortana, Bornstellar describes his ancilla as a "blue female figure in the back of his mind".
 * "Ancilla" is Latin for a female servant or maid.

List of appearances

 * Halo: The Flood (2010)
 * Halo: Cryptum