What is a totalitarian system?

Totalitarianism is a political system where the state recognizes no limits to its authority, and works to regulate every aspect of public and private life.
Totalitarianism emerged in the twentieth century because the means for total social control did not exist before that time. These systems moved beyond authoritarian control. They attempted to mould citizens into a certain desirable type, whether they be proletarian labourer or pure Aryan (as in the case of Stalin's Russia, and Hitlers Germany).
The use of State ideology, secret police, state controlled media, freedom of movement and a single party state are tools of a Totalitarian state.