It still has an advantage in terms of price and speed. However it did has that much popularity due to competition from other products of C like Microsoft C, Watcom C, Lattice C and many others. It was developed by a different company in the initial days but shared many features with Turbo Pascal like look and tools included.
It comes with a source code editor, fast compiler, linker and offline help for reference. The latter was able to generate both EXE and COM programs and then shipped with Borland’s Turbo Assembler for Intel x86 processors. Then in 1991 OS/2 version was produced which runs on MS-DOS. Version 1.0 which runs MS-DOS came out back in 1990. This was bundled with Turbo Assembler and Turbo Debugger Version 2.0 had a blue screen which was a typical all-future Borland released for MS-DOS. Version 1.5 had sample programs, improvised manuals and bug fixes.
Being an integrated development environment it can run on modern operating systems. Borland Turbo C++ is a very popular version of DOS-based Turbo C++ but upgraded and optimized.