The first commercially available wireless keyboard appeared in 1983, as part of the IBM PCjr. I'm not sure if they were the actual inventors of the wireless keyboard -- and their first attempt was not a success -- but they were certainly one of the earliest know producers of a wireless keyboard.
1999 Gusti suckar
The first wireless key board was invented in 1997 by Elliot Carver.
Logitech
Though I'm not sure who actually invented the wireless keyboard, one of the first wireless keyboards was part of IBM PCjr in 1983.
1868
2003
it is a keyboard that has no physical cord
A wireless keyboard has very simple plug and play installation.
A wireless keyboard is not needed with a Smart TV.
wireless are great if you have the big huge keyboard small forget get the big one with handrest.
As far as their functioning capabilities the regular keyboard and the wireless keyboard are basically the same. The difference between them is that you can move the wireless keyboard anywhere you want and you don't have to worry about wires.
A wireless keyboard operates on a different frequency than your 2.4 Ghz. router and will not cause interference.
I got a Genius wireless keyboard for my iPad last year and it has worked really well. Very occasionally it doesn't connect properly and I have to restart it, but this is rare and happens with all brands anyway.
You can buy a wireless keyboard at any of your local consumer electronics stores, and general electronics store including BestBuy and Costco. You can also purchase a wireless keyboard online.