What are the different ways that the Party obtains and maintains power In Oceania?

The Party maintains its power primarily through language, technology, fear, and isolation. In my opinion language are the most potent, because the intellectual purpose of Newspeak is to make Ingsoc-approved thoughts the only expressible thoughts. As constructed, Newspeak's vocabulary communicates the exact expression of sense and meaning that a member of the Party could wish to express, such as uncold instead of warm and ungood instead of bad, that to limit free thought and free speech.