In The Beast With A Billion Backs Calculon is seen as the leader of the League of Robots, a robot supremacy society. Bender cheats in a duel with Calculon, resulting in the loss of one of Calculon's arms and the destruction of the league's headquarters. Calculon subsequently becomes outraged at Bender and resigns from the league, relinquishing the presidency to Bender. In Into The Wild Green Yonder, it is said that his operating system is Windows Vista. In re-airings of the movie on Comedy Central, he says his operating system is Windows 7.