Borland Turbo C 2.x
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, fast compile speed, comprehensive manuals and low price. After 2.0 it this product was replaced with Borland Turbo C++. It competed against, Microsoft Quick C and was generally considered faster and more successful.