A message about technology, from the future. The 1967 future.

An image from the original Star Trek television series; Lieutenant Uhura stands on an alien planet looking at a clunky black object that she wears on a strap around her neck. There is text at the top which says: In the 1960s version of the future we had the same tricorders for three whole seasons, and 'tricorder' was a generic term, not a brand name. Who manufactured these things, the government? Today they'd be made by Microsoft or Apple, and they'd stop working if you tried to modify them to detect a new kind of tachyon radiation, or if you didn't update the firmware every six months.