A simple notation used to identify a piece of music through the falling and rising motion of its pitch.

An early character encoding used in telegraphy, representing each letter in the alphabet by five bits (binary digits).

(computing, historical) A standard code defining the patterns of holes on punch cards that represent various text characters.

(law) A systematic collection of laws addressing dealings between private parties, such as business contracts and negligence lawsuits.

A term, number, or alphanumeric combination provided electronically to a vendor in order to redeem a marketing promotion.

A substitution cipher

(computing, derogatory) Software code that has had many editors with conflicting styles, making it nearly impossible to maintain.

(computing) The output of a compiler or assembler; it is not necessarily executable directly without linking to other modules

(video games) A line of text or series of commands which can be used to change a game's behavior, alter a character's looks and abilities, skip levels, or access other hidden features.

(telecommunications) Any of a family of linear error-correcting codes that generalize the Hamming(7,4)-code invented by Richard Hamming in 1950.