Each part has a specific function. Before we discuss the control unit and the arithmetic/logic unit in detail, we need to consider data storage and its relationship to the central processing unit. Computers use two types of storage: Primary storage and secondary storage.
With a worldwide box-office gross of over $2.7 billion, Avatar is often proclaimed to be the highest-grossing film, but such claims usually refer to theatrical revenues only and do not take into account home video and television income, which can form a significant portion of a film's earnings.
They said this would never happen. But it did. James Cameron's Avatar has finally passed Titanic to become the highest grossing movie of all-time. Titanic held the record for over 12 years with a worldwide total of $1.843 billion (via Box Office Mojo).