A collection of organized information or related data on one or more subjects, especially one in electronic form that can be accessed and manipulated by specialized computer software. A flat file database has only one table, and a fielded database is composed of data in fields, rather than a fulltext database, which is a collection of text files and documents. A Relational DataBase has tables which are interrelated and interactive, with automatic updating and new table generation; with administration by a Relational DataBase Management System (RDBMS). A DataBase Management System (DBMS) uses a complex set of programs to store and retrieve data organized in fields, records, and files, while also monitoring system security; examples of DBMS include Oracle, Sybase, Datacom, mySQL, Lotus Approach, Microsoft Access, and Filemaker. DataBase 1 (DB1) and DataBase 2 (DB2) are also DBMSs for PC, OS/2, HP, and Sun computers. A computer in a local area network that maintains a database and performs searches for client computers is called a database server (DBS). Database interface among different formats is enabled by interoperable and open connectivity, so intersystem data can be shared. See SQL, program, markup, quantum, videotex, language, software.