I have been searching for, and failing to find a quote by Steve Jobs - I remember reading it in the late 80s. It was to the effect "UNIX is going to be the operating system for the 90's". I'd love to track down the original source for this...
A copy and someones review of those seven here: http://wemmick.net/writings/next-predictions/
Optical storage maybe not. But others like Unix, multimedia email and "programmer productivity" faired fairly well.