Binary

Jessamine, also known as Binary, is an android who was created by Cobalt in the underground experimental city Badlands located in the Mojave Desert. Created with extremely advanced technology, Jessamine has been consistently upgraded since her creation, and she herself added an Internet uplink shortly after she escaped from Badlands in 2008. In 2015, after betraying the android Ultron and joining the Avengers, Jessamine also fitted herself with synthetic nerve fibres because she wished to be capable of physically feeling the world around her.

Creation
Jessamine was created by the brilliant but psychopathic scientist Cobalt on behalf of HYDRA. She was built to be a cold, unfeeling assassin, and Cobalt regarded her as a prized possession. For many years of her life, Jessamine was unflinchingly loyal to her creators. She, along with the rest of Cobalt's androids, served as security guards in HYDRA's experimental city of Badlands.

Escaping Badlands
Having never been exposed to anything outside of her underground city, Jessamine often asked Cobalt about the outside world, and he consistently told her that it would never accept her and would always treat her as an enemy. It wasn't until Jessamine met and bonded with Beatrice Storm, who arrived in Badlands in 2006, that she began to believe that the world was anything more than cutthroat and unforgiving.

In 2008, Jessamine and the rest of the androids aided the Badlands initiates in escaping the city. When Cobalt discovered her treachery, he threatened to have her destroyed and stripped down for parts, and she finally overpowered and killed him.

Upon their escape from the city, the androids dispersed into the population holding false identities and with Jessamine as their leader. They gave her eyes and ears into the world, and she continued to monitor their activities.

Joining Ultron
In 2015, Jessamine was approached by Ultron, an intended global peacekeeping initiative created by Tony Stark.