What does a gramophone does?

a gramophone was used for communication

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"Gramophone" is the name given in Britain to early phonographs. A gramophone is a record player. (The term is still used in the title of some organizations, publications, and prizes.) So, the answer to your question is that a gramophone uses a pointed piece of metal (a "needle"")produces sound (usually Words or music) by converting the grooves on a disc (record) into vibrations that produce sound waves. In other Words, gramophone is used to play records.