An early example is an invention of language, which enabled a person, through speech, to communicate what they thought, saw, heard, or felt to others. In communications and information processing, code is a system of rules to convert information-such as a letter, word, sound, image, or gesture-into another form, sometimes shortened or secret, for communication through a communication channel or storage in a storage medium. JSTOR ( March 2010) ( Learn how and when to remove this template message).
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