database machine <hardware> A {computer} or special hardware that stores and retrieves data from a {database}. It is specially designed for database access and is coupled to the main ({front-end}) computer(s) by a high-speed channel. This contrasts with a {database server}, which is a computer in a {local area network} that holds a database. The database machine is tightly coupled to the main {CPU}, whereas the database server is loosely coupled via the network. [Example?] (2004-03-11)