The Data Access Manager (DAM) was a database access API for the classic Mac OS, introduced in 1991 as an extension to System 7. Similar in concept to ODBC, DAM saw little use and was eventually dropped in the late 1990s. Only a handful of products ever used it, although it was used for some extremely impressive demoware in the early 1990s. More modern versions of the classic Mac OS, and macOS, use ODBC for this role instead.