1984 is told from the perspective of the protagonist, Winston Smith. This perspective is defined as the third person point of view. This point of view is also limited, as the reader only has access to Winston's thoughts and feelings. (In contrast, an omniscient point of view would give the reader access to the thoughts and feelings of many more characters in the book.)
To see this point of view in action, take a look at Part One, Chapter Two, when Winston visits his neighbors, the Parsons family. Winston notices Mrs. Parsons's unease around her children, and thinks, "with those children. . . that wretched woman must lead a life of terror.
In this example, our understanding of Mrs. Parsons's relationship with her children is told only from Winston's perspective. She may well lead a "life of terror," but this is Winston's observation, not Mrs. Parsons's. Because of this limited point of view, the reader will never know how Mrs. Parsons truly thinks and feels.