The control panels used by the Forerunners (and later adapted by the Covenant) were holographic displays located throughout many locales in Installation 04. The panels were used to display and input information and to control machinery such as lifts.
Even though the Covenant and John-117 could easily manipulate the panels, United Nations Space Command forces sometimes would use spoofers in order to override the security measures which locked certain doors.
- These are prominently encountered for the first time in Halo: Combat Evolved during the game's fifth level Assault on the Control Room.
- The player must activate these to open blast doors and operate lifts.
- A lift control panel similar to those in Assault on the Control Room is encountered in the sixth level 343 Guilty Spark.