In the latter half of the 30th Century, Brainiac 5 undertook a project to build the ultimate computer. He named the artificial intelligence that emerged Computo, and then watche helplessly as Computo ruthlessly set out to create a tyrrany of computers on Earth. With the assistance of othe members of the Legion of Super Heroes, Brainiac 5 defeated Computo, but not before the machine had destroyed one of Luornu Durgo's three bodies, changing her from Triplicate Girl to Duo Damsel.

Restored to inanimate life years later when Brainiac 5 accidentally incorpporated a similar circuitry in a device he had built to save the life of Danielle Foccart, Computo invaded LSH headquarters and nearly killed the enire team.

Only the decision of Jacques Foccart, the girl's elder brother, to assume the powers and role of Invisible Kid enabled Brainiac 5 to defeat Computo again.

A now tamed version of Computo is contained in an energized circuit globe that serves as majordomo for the LSH headquarters under Brainiac 5's watchful supervision and the suspicious glances of other Legionnaires.