Definition

Noun: 1. A device or machine that converts encoded information into a usable form: Specifically, a machine or circuit that converts coded signals (such as digital data or encrypted text) back into their original, understandable format. 2. A person who interprets or deciphers coded messages: An individual, often an intellectual or specialist, who converts messages from a code into plain, understandable text.

Usage Examples

• Noun (Device):
  • The satellite receiver contains a decoder to convert the digital signal into pictures and sound.
  • This chip acts as a decoder, translating the binary instructions for the processor.
• Noun (Person):
  • During the war, she worked as a decoder, breaking enemy communications.
  • He was the team's best decoder of ancient scripts.

Advanced Usage

• In computing and electronics: A decoder is a fundamental logic circuit that selects one of multiple output lines based on a binary input code. It is the inverse function of an .
  • The address decoder activates the correct memory chip based on the input from the CPU.

Variants and Related Words

• Decode (verb): To convert coded information into a comprehensible form.
  • The software will decode the encrypted file.
• Decoder Ring (noun phrase): A physical device, often a toy, used to perform simple substitution ciphers.
  • The cereal box included a secret decoder ring for the puzzle.

Synonyms

• Device: Decipherer, interpreter, converter.
• Person: Cryptanalyst, codebreaker, cryptographer.

Related Phrases

• Set-top box: A common type of decoder for television signals.
  • You need a digital decoder (set-top box) to receive the new channels.

Noun

1. a machine that converts a coded text into ordinary language
2. the kind of intellectual who converts messages from a code to plain text