What dual purpose does Big Brother symbolize in the novel, and was he real or just a symbol?

First of
all, Big Brother is not a real person. Although he frequently appears on television and his
picture stares out from huge posters that shout, BIG BROTHER IS WATCHING YOU, nobody sees Big
Brother in person.He is a symbol of the authority of The Party.

According to
cited scholars,probably had several things in mind when he created Big Brother. He was most
likely thinking predominantly of...