In what year did Thomas Edison invent the phonograph? 1877 1944 1982 2004 None What material was used for the earliest phonograph recordings? Wood Vinyl Tinfoil Plastic None Which of the following was a major use of the phonograph in its early days? Playing music Recording personal messages Office dictation All of the above None What was the main improvement in Alexander Graham Bell’s graphophone over Edison’s phonograph? Use of a flat disc Use of a wax cylinder Improved sound quality Electric motor None Which company became a leading manufacturer of phonographs in the early 20th century? Samsung RCA Victor Monoprice Apple None Time's up
