The term "radio" started to become preferred by the general public in the 1920s with the introduction of broadcasting.
Answer:
Marconi invented the wireless telegraph that used radio waves to send out Morse code. Because he used radio waves to send out his signals way back in 1895, the device was called the radio.
Explanation: Marconi was the first to use radio waves for long distance radio communication so his device and devices after it were called the radio.
