GoKawiilBorland's Turbo Basic history traced from BASIC/Z to PowerBASIC
Turbo Basic began as Bob Zale's BASIC/Z, the first interactive compiler for CP/M, before Borland International acquired it and released it for MS-DOS in 1987. Borland sold it for only a couple of years before discontinuing it, after which Zale bought back the rights and continued development under the name PowerBASIC. Unlike interpreters such as GWBASIC, Turbo Basic compiled code, removed the 64KB file-size limit, and offered an integrated edit-compile-run development environment.