Mainframe is a Artificial Intelligence program and a prototype version of the Ultron Program. In the event of Tony Stark's death, Mainframe would resume his activities, or in the need of backup Mainframe would be called to duty.
Powers and Abilities[]
Mainframe's robotic body is superhumanly strong, and has jet boosters that allow him to fly. He is equipped with a high-tech sensor array, as well as various energy weapons (lasers, magnetic beams, electric blasts, etc). He also has projectile weaponry, such as grenades and missiles.
Mainframe's consciousness rests inside a football-sized A.I. core in each robot body. When he is damaged beyond repair or destroyed, this core transmits his personality program to a Stark Enterprises satellite and download his consciousness into one of the replacement bodies stored there. If for some reason the transmission cannot be achieved, the core is designed to fly itself to the satellite to preserve Mainframe's mind.