Within the history of the radio, technological change has helped to shape it greatly. These changes improved the radio by increasing the distance in which they can broadcast, creating more uses for the radio, making them small enough to keep in each and every home, and with the formation of industries like RCA it helped regulate the radio and turn it into a successful media format. The end result of all of this change is the radio we all listen to today.
The way that technological change works is as years go by our technology advances. People invent new ways to solve everyday problems, or they take inventions and improve upon them. When a creation is improved it gains multiple new uses. The radio changed in this exact way. For example Guglielmo Marconi created the radio telegraph system, a new kind of telegraph capable of transatlantic transmission. This new telegraph helped him to establish the British Marconi and American Marconi two way radio businesses. One of the biggest impacts this invention had was it's use during the Titanic incident. It is said that the Titanic used this radio to report their disaster in 1912. The man who was said to have relayed this fateful message was the same man who would later develop the commercial radio industry, David Sarnoff.
Sarnoff was the director of the RCA (Radio Corporation of America), and his corporation would later create radios that people can keep in their homes. Before these radios were mainly used as two-way communicators during WWI, but by the end of the war radios were returned to the public and their use would change yet again. By 1922 their were over 500 radio stations and radios became for sell for everyday use. Soon almost every household would have a radio and families would gather around it and listen to their favorite programs. Amongst these stations there featured live music, heroic tales and adventures, and news of the goings-on in the world around them. Even though the television replaced it as the a main media source around the 1950s, radio still prospered as a source of music, and secondary source of entertainment and news.
From distress transmitter, to two-way radio, to an entrainment source in the household; the radio has evolved greatly throughout American history. In fact if not for the radio, would anyone have thought to create televisions and computers? I believe that radio was an important stepping stone in technological evolution, and without it we might not have the luxuries we have today.