Are these the same as the ministries in Oceania? How are they different?

The government portrayed in 1984 is nothing like our own. It is a totalitarian government, in which, every aspect of a citizen's life is controlled. Independent thought is a crime, writing a diary is a crime, information propagated by government agencies is falsified and accepted without question for fear of reprisal. History is rewritten on a regular basis to support government policies, and the media is only allowed to report what the Party wants them to report.