Objective-C is a programming language which is based on the C language but adds some object oriented extensions. It was initially created in the early 1980s and achieved a measure of popularity when it was used as the main software development language for the NeXT computer system which was launched in 1988. Today it is the primary software development language for Apple Mac computers, used mainly with Apple's Xcode toolset. Any new applications written for the Mac will likely be written in Objective-C.