The document discusses Oracle Database, which is a collection of organized data that allows for efficient data handling. It can contain both simple and complex data, such as an employee database. Oracle Database uses a relational data model with tables, relations, tuples and attributes. It also contains object-oriented components like inheritance, polymorphism, abstraction and encapsulation. Oracle Database was founded in 1977 and developed by Larry Ellison, Bob Miner, and Ed Oates. It has various editions including Enterprise Edition, Standard Edition, and Express Edition for single processor computers.