To focus on the inputs and outputs without worrying about the internal complexity.
A flight recorder; the brightly colored cockpit voice recorders and flight data recorders in an aircraft designed to aid in determining the cause of an accident.
A device used in phreaking that prevents the calling party from being billed for the call placed.
A type of theater characterized by a lack of decoration or complex mechanisms.
A theoretical construct or device with known input and output characteristics but unknown method of operation.
Any similar device on motor vehicles, such as rail event recorders and ship trip recorders.
To give structure to; to arrange.
The overall form or organization of something.
The underlying shape of a solid.
Underwater terrain or objects (such as a dead tree or a submerged car) that tend to attract fish
A body, such as a political party, with a cohesive purpose or outlook.
A cohesive whole built up of distinct parts.
A set along with a collection of finitary functions and relations.
Several pieces of data treated as a unit.
A set of rules defining behaviour.