It was a watershed of hi concept computer art at a time when most practical computer graphics looked like...
It really foreshadowed an artistic interest in computers that hadn't happened yet. These days people take this sort of thing for granted, but at the time, it was a rather hi-concept and experimental movie for Disney to be involved in. I remember being overwhelmed by the imagery of it when I saw it at age 14.
It also boldy suggested that there might be a battle for control of a free communication network between the forces of big business and private citizens.