Something most authors don’t mention, but I’ve read in the book by Andy Kessler: (1):
Apparently Tesla not only invented the first electronical wirelessly controlled battery powered device, he also invented the first electronic ligical circuit then, the author claimed, all in year 1899.
1) “How We Got Here: A Slightly Irreverent History of Technology and Markets”
For more information on that 'device', look hard at the tech used in his 1898 demo of his remote-controlled boat at an expo in Madison Square Garden. The boat and remote combined several amazing innovations. Technically it's on the same level as Englebart's demo.
Apparently Tesla not only invented the first electronical wirelessly controlled battery powered device, he also invented the first electronic ligical circuit then, the author claimed, all in year 1899.
1) “How We Got Here: A Slightly Irreverent History of Technology and Markets”