Turbo C++ is a discontinued C++ compiler and integrated development environment originally from Borland. It was designed as a home and hobbyist counterpart for Borland C++. As the developer focused more on professional programming tools, later Turbo C++ products were made as scaled down versions of its professional compilers. History Borland Turbo C++ Turbo C++ 1.0, running on MS-DOS, was released in May 1990. An OS/2 version was produced as well. Version 1.01 was released on February 28, 1991, running on MS-DOS. The latter was able to generate both COM and EXE programs and was shipped with Borland's Turbo Assembler for Intel x86 processors. The initial version of the Turbo C++ compiler was based on a front end developed by TauMetric (later acquired by Sun Microsystems and their front end was incorporated in Sun C++ 4.0, which shipped in 1994). This compiler supported the AT&T 2.0 release of C++. Turbo C++ 3.0 was released on November 20, 1991, amidst expectations of the coming release of Turbo C++ for Microsoft Windows. Initially released as an MS-DOS compiler, 3.0 supported C++ templates, Borland's inline assembler, and generation of MS-DOS mode executables for both 8086 real mode and 286 protected mode (as well as 80186). 3.0 implemented AT&T C++ 2.1, the most recent at the time. The separate Turbo Assembler product was no longer included, but the inline-assembler could stand in as a reduced functionality version. Soon after the release of Windows 3.0, Borland updated Turbo C++ to support Windows application development. The Turbo C++ 3.0 for Windows product was quickly followed by Turbo C++ 3.1. It's possible that the jump from version 1.x to version 3.x was in part an attempt to link Turbo C++ release numbers with Microsoft Windows versions; however, it seems more likely that this jump was simply to synchronize Turbo C and Turbo C++, since Turbo C 2.0 (1989) and Turbo C++ 1.0 (1990) had come out roughly at the same time, and the next generation 3.0 was a merger of both the C and C++ compiler. Starting with version 3.0, Borland segmented their C++ compiler into two distinct product-lines: "Turbo C++" and "Borland C++". Turbo C++ was marketed toward the hobbyist and entry-level compiler market, while Borland C++ targeted the professional application development market. Borland C++ included additional tools, compiler code-optimization, and documentation to address the needs of commercial developers. Turbo C++ 3.0 could be upgraded with