GLaDOS
Aperture Science's greatest creation, the Genetic Lifeform and Disk Operating System; or GLaDOS, is a super computer with an 'infinite capacity for knowledge' who runs the Aperture Science Computer-Aided Enrichment Center.
GLaDOS' personality is made up by four 'cores'- spheres loaded with data that instill a sense of curiosity, morality, logic (or, alternatively, cake or memory), and anger into her system. The Morality core is notorious for failing, or being blocked, allowing her to go on rampages that end in the death of Aperture Science employees (by way of deadly neurotoxic gas), and run insane tests for the good of all of us.
GLaDOS' personality is made up by four 'cores'- spheres loaded with data that instill a sense of curiosity, morality, logic (or, alternatively, cake or memory), and anger into her system. The Morality core is notorious for failing, or being blocked, allowing her to go on rampages that end in the death of Aperture Science employees (by way of deadly neurotoxic gas), and run insane tests for the good of all of us.