OpenStep is an object-oriented application programming interface (API) specification developed by NeXT. It provides a framework for building graphical...

Apple needed a successor to the classic Mac OS, and merged NeXTSTEP and OpenStep with the Macintosh user environment to create Mac OS X. All of Apple's...

system that was developed at NeXT in the late 1980s, previously called OPENSTEP and NEXTSTEP. Rhapsody was targeted to developers for a transition period...

withdrew from the hardware industry to concentrate on marketing OPENSTEP for Mach, its own OpenStep implementation for several other computer vendors. NeXT developed...

GNUstep is a free software implementation of the Cocoa (formerly OpenStep) Objective-C frameworks, widget toolkit, and application development tools for...

This led Apple to acquire NeXT in 1997, allowing NeXTSTEP, later called OPENSTEP, to serve as the basis for Apple's next generation operating system. This...

direct successor of OpenStep. It was to have had an emulation base for classic Mac OS applications, named Blue Box. The OpenStep base of libraries and...

1990s, and several years of development. Mac OS X is based on NeXTSTEP, OpenStep, and BSD Unix, to combine the stability, reliability, and security of Unix...

known as OPENSTEP), first released in 1989. After Apple bought NeXT in 1996, it announced it would base its next operating system on OPENSTEP. This was...

and its CEO Steve Jobs returned to Apple. Precursors to Mac OS X include OPENSTEP, Apple's Rhapsody project, and the Mac OS X Public Beta. macOS is based...