However, it remains unknown whether Caroline agreed to be uploaded into the Genetic lifeform component or if she was forced by technicians, though unused audio files make it clear that the choice wasn't hers.Īs a fail-safe, once construction was nearing completion, the Aperture Science Red Phone plan was implemented in case she appeared to become sentient and dangerous, requiring an employee to sit by a red phone on a desk in the entrance hall of the Central AI Chamber.
While Cave Johnson ultimately died before his consciousness could be uploaded, he left instructions that his assistant Caroline should be fitted as the Genetic lifeform component so that she would be able to run Aperture in perpetuity after his death. Inafter a decade spent bringing the Disk Operating System parts to a state of more or less basic functionality, work began on the Genetic Lifeform component. GLaDOS briefly becomes an ally to Chell during the second half of the singleplayer campaign of Portal 2 after Wheatley takes over the facility.
She is the main antagonist throughout Portal and the first half of Portal 2 's single-player campaign.