Apple’s 1987 Knowledge Navigator Video
You have to remember that the graphical Web version of the Internet that we have today did not exist when this video was produced – it came six years later. This vision of how the summary of human knowledge could be digitally available and easily transferable between geographies at the click of a button was a sci-fi pipe dream at that moment. As was the finger-driven multi-touch interface which is just now, 20 years later, really becoming a reality (iPhone). Same with easy point-to-point video conferencing (iChat / Skype). While today we still don’t have digital computer assistants we can talk to like in this video, we’ve got nearly everything else

Apple iPhone 4S Siri demo