The telephone
The first submarine commissioned in the Imperial German Navy was in 1906.
the recorder has to be blown first and the it will produce a sound.
You use the left hand, the thumb on the hole in the back of the recorder, and the first two fingers on the first two holes in the front. That is, on a "A" type recorder.
The first video recorder was made in 1956 by Ampex.
automatic recorder
E on the recorder is your first three fingers on your left, and first two fingers on your right X3
Video recorder came first, TV stations were using them in the 1960s.
2007
You were O.o
it was thomas Edison who invented the electrical vote recorder but I don't know what it is
the first hole is B
The first three notes on the soprano recorder are called C, D and E.