(computing) A code that uses the binary digits (1 and 0), usually in groups of eight, to represent characters, machine instructions or other data.

Alternative spelling of barcode

(mathematics) The branch of mathematics dealing with the art of transmitting messages reliably over a noisy channel by adding redundancy to the message.

(computing) A numeric value or string of such values that triggers a specific command or action to occur, rather than displaying a text character.

plural of time code

(computer science) A system of instructions and data directly understandable by a computer's central processing unit.

A sequence of letters and/or numbers added to a postal address to aid the sorting and delivery of post/mail.

plural of ZIP Code

A numeric code generated at regular intervals by a timing system.

A code used on DVDs to identify which region's DVD player it will play in. / A code used in DVD players to allow only DVDs being sold in that region to be played.