Widely used in business applications. Offshoots of dBASE ("Xbase" languages) are Clipper, Quicksilver, FoxBase and FoxPro.
A database program popular in the 80's. Due to its widespread usage, many other companies produced compatible products. Also known as "xBase", these programs read and write "DBF" files. Borland now owns the actual dBase program. Microsoft offers Foxpro. Other example programs include Clipper and Alpha Four.
A widely used relational database system.