emergency response system
The idea that this unnamed individual is always watching from the shadows establishes the social order of the society whose members have learned better than to utter anything that might be construed
as negatively related to Big Brother and The Party, which is the ruling upper class. Orwell’s first reference to “Big Brother” is found the third paragraph of the first chapter of 1984. He writes, " “The flat was seven flights up, and Winston, who was thirty nine and had a varicose ulcer above his right ankle, went slowly, resting several times on the way. On each landing, opposite the lift shaft, the poster with the enormous face gazed from the wall. It was one of those pictures
which are so contrived that the eyes follow you about when you move. BIG BROTHER IS WATCHING YOU, the caption read” 3.