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Everything about Code

System of rules to convert information into another form or representation

In communications and information processing, a 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. Wikipedia →

🧭 Start here: a 6-step reading path

  1. Read the overview: CodeA 5-minute orientation
  2. Skim a recent paper: Suppressing quantum errors by scaling a surface code logical qubitInfluential work since 2022
  3. Pick up a classic book: OriginThe most-reprinted book on the subject
  4. Read the landmark paper: Backpropagation Applied to Handwritten Zip Code RecognitionCited 9,944 times
  5. Go sideways: Variable-length encodingA closely related topic
  6. Go sideways: Prefix codeA closely related topic

📖 Definitions

Noun A short textual designation, often with little relation to the item it represents.

Noun A body of law, sanctioned by legislation, in which the rules of law to be specifically applied by the courts are set forth in systematic form; a compilation of laws by public authority; a digest.

Noun Any system of principles, rules or regulations relating to one subject.

Noun A set of rules for converting information into another form or representation. (by synecdoche) A codeword, code point, an encoded representation of a character, symbol, or other entity.

🗂️ The subject at a glance

  1. Theory
  2. Examples
  3. Other examples
  4. Codes in practical use

🏆 Landmark papers (most cited)

🆕 Influential since 2022

📚 Books worth reading

Ranked by number of editions on Open Library, a rough measure of how lasting a book is.

🔗 Related topics