Desktop from Blade Runner...
Remember when Deckard comes back to his apartment and slides a photo
into a slot on his "computer"? He never touches a keyboard or mouse and
views/enhances the picture all with voice commands. There was never
a need to click on a application menu, or icon, nor type a command.
The act of inserting the photo was enough input for the correct application
to be run.
That's a perfect desktop!