Monitor (Earth-2915)

"Greetings! I am the monitor of Installation 04. I am 343 Guilty Spark."

- 343 Guilty Spark

A monitor is an advanced artificial intelligence construct created by the forerunners to occupy special positions in their society. Monitors are characterized as being embodied in floating robotic casings.

The Covenant refered to monitors as oracles; they revered the "oracles" for their wisdom and believed that they were key to the fulfillment of the Great Journey.

Source

 * https://www.halopedia.org/Monitor