Turbo Basic is a BASIC compiler

Compiler

A compiler is a computer program that transforms source code written in a programming language into another computer language...

 and dialect originally created by Robert "Bob" Zale and bought from him by Borland

Borland

Borland Software Corporation is a software company first headquartered in Scotts Valley, California, Cupertino, California and finally Austin, Texas. It is now a Micro Focus subsidiary. It was founded in 1983 by Niels Jensen, Ole Henriksen, Mogens Glad and Philippe Kahn.-The 1980s:...

. When Borland decided to stop publishing it, Zale bought it back from them, renamed it to PowerBASIC

PowerBASIC

PowerBASIC is the brand of several commercial compilers by Venice, Florida-based PowerBASIC Inc. that compile a dialect of the BASIC programming language. The DOS versions have a syntax similar to that of QBasic and QuickBASIC, while the Windows versions utilize a standard BASIC syntax that can be...

 and set up PowerBASIC Inc. to continue support and development of it.

This software is from the 1987-1988 period and features the Borland "black screen" similar to Turbo Pascal

Turbo Pascal

Turbo Pascal is a software development system that includes a compiler and an integrated development environment for the Pascal programming language running on CP/M, CP/M-86, and DOS, developed by Borland under Philippe Kahn's leadership...

 4.0, Turbo C

Turbo C

Turbo C is an Integrated Development Environment and compiler for the C programming language from Borland. First introduced in 1987, it was noted for its integrated development environment, small size, extremely fast compile speed, comprehensive manuals and low price.In May 1990, Borland replaced...

 1.0/1.5, and Turbo Prolog 1.1.