Wikipedia
Microsoft QuickC was a commercial integrated development environment (IDE) product engineered by Microsoft for the C programming language, superseded by Visual C++ Standard Edition. Its main competitor was Borland Turbo C.
QuickC was one of three Microsoft programming languages with IDEs of this type marketed in the same period, the other two being QuickBasic and QuickPascal. QuickBasic later gave rise to Visual Basic as well as being included without a linker as QBasic in later versions of MS-DOS, replacing GW Basic. QuickC is a lineal ancestor of Visual C++. The three Quick language implementations were designed for power users (as opposed to professional developers, whom Microsoft supplied with programming languages in the form of expensive and more comprehensive implementations for the three languages in question as well as C++, Fortran, and Cobol) and educational use; in all three cases their major competitor was Borland with its Turbo compiler series. Microsoft Macro Assembler also competes with Borland's Turbo Assembler