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Decode

The process of reading data in one format and outputting it in another, usually for the purpose of converting from a compressed format to one capable of being displayed on a monitor.

The process of reading data in one format and outputting it in another, usually for the purpose of converting from a compressed format to one capable of being displayed on a monitor. Opposite of encoding.

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 or representation, sometimes shortened or secret, for communication through a communication channel or storage in a storage medium. An early example is the invention of language, which enabled a person, through speech, to communicate what they saw, heard, felt, or thought to others. But speech limits the range of communication to the distance a voice can carry, and limits the audience to those present when the speech is uttered. The invention of writing, which converted spoken language into visual symbols, extended the range of communication across space and time.

The process of encoding converts information from a source into symbols for communication or storage. Decoding is the reverse process, converting code symbols back into a form that the recipient understands, such as English or Spanish.

One reason for coding is to enable communication in places where ordinary plain language, spoken or written, is difficult or impossible. For example, semaphore, where the configuration of flags held by a signaler or the arms of a semaphore tower encodes parts of the message, typically individual letters and numbers. Another person standing a great distance away can interpret the flags and reproduce the words sent.

 

Key Terms

communication
data
definition
form
person
process
range communication
speech
storage
usage

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Decode
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Last modified on October 22 2019
Content adapted from Wikipedia
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