Germany had a lot of top scientists and engineers. But I'm not sure I can see how mag tape would be a war winning weapon in the way that radar, early computers

Germany had a lot of top scientists and engineers. But I'm not sure I can see how mag tape would be a war winning weapon in the way that radar, early computers or proximity fuses were. Of course, Germany booted out loads of Jewish scientists. Many of whom ended up doing important work for the Allies - not least on the atom bomb.