What does closed caption mean

Question

What does closed caption mean

Answer 1

its when there are letters in the bottom for the people who cant hear  

Answer 2

Closed captioning is a term describing several systems developed to display text on a television or video screen to provide additional or interpretive information to viewers who wish to access it. Closed captions typically display a transcription of the audio portion of a program as it occurs (either verbatim or in edited form), sometimes including non-speech elements.

Answer 3

Closed caption means that the transcript of the words being spoken will come up on your screen. Created for the hearing impaired.