Sigmund Freud divided "Id, Ego and Superego" as 3 components of mind according to
Structural theory of mind: Includes Ig, Ego and Superego
Topographical theory of mind: Includes Unconscious, Preconscious and Conscious as 3 parts of mind.
Topographical theory of mind
Structural theory of mind
Psychoanalytical theory of mind
Primary process of thinking