Database

From the link: http://en.wikipedia.org/wiki/Database

A database is a structured collection of data. The data is typically organized to model relevant aspects of reality (for example, the availability of rooms in hotels), in a way that supports processes requiring this information (for example, finding a hotel with vacancies).
The term database is correctly applied to the data and their supporting data structures, and not to the database management system (DBMS). The database data collection with DBMS is called a database system.
The term database system implies that the data is managed to some level of quality (measured in terms of accuracy, availability, usability, and resilience) and this in turn often implies the use of a general-purpose database management system (DBMS).^[1] A general-purpose DBMS is typically a complex software system that meets many usage requirements to properly maintain its databases which are often large and complex.