A database system or DBS is a system or software designed to manage a
database, and run operations on the data requested by numerous clients. Typical examples of DBS use include accounting, human resources and customer support systems. DBSs have more recently emerged as a fairly standard part of any company back office. A DBS is not to be confused with a
Database Management System which is the software used to create databases, and which DBSs reside on top of.
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a computerised system to maintain information and make that it available on demand in a form that is usefull to the user. It has four components: 1.hardware 2.software 3.data 4.users (see MIS).