Approximately in 1981 synthesizers started to rule the music world!
In 1981 Evelyn King's - I'm In Love (Kashif was both composer/producer) scored #1 in charts. It was 100% computerized and synth-driven song. And it was the first electronic US Funk song to be at #1. At the same time in Europe such acts like Depeche Mode, Visage, Human League, Spandau Ballet, etc. proved that 100% synth-driven music has the right for existance!
Without 70's KRAFTWERK it wouldn't be possible. I can hardly imagine the course of electronic music evoulution unless Kraftwerk's influence