Stepstone

Stepstone, originally named Productivity Products International (PPI), was a software company founded in 1983 by Brad Cox and Tom Love, best known for releasing the original version of the Objective-C programming language. PPI/Stepstone enjoyed modest success not only supplying semi-"object oriented" software, but also among those who wanted an ANSI C compiler on platforms that didn't otherwise support one — the Objective-C compiler spit out code to be fed to the native C compiler, which often was K&R C. The ICpak 201 interface toolkit was submitted to the Open Software Foundation as a candidate for their interface standard but was not expected to win over Motif.