What (who) is OpenStep - definition
DEFUNCT OBJECT-ORIENTED APPLICATION PROGRAMMING INTERFACE SPECIFICATION FOR A LEGACY OBJECT-ORIENTED OPERATING SYSTEM
OPENSTEP; OPENSTEP Enterprise; Openstep; OPENSTEP/Mach
OpenStep
<operating system> An object-oriented {application
programming interface} (API) derived from NEXTSTEP and
proposed as an open standard by NeXT in 1994.
OpenStep is the specification of the object kits of NEXTSTEP.
OPENSTEP/Mach was an implementation of this specification.
The original, OPENSTEP version 4.0, and really was NEXTSTEP 4.
Rhapsody was the codename for Apple's Mac OS X Server,
which is really NEXTSTEP 5 (it calls itself "kernel 5.3" at
boot time).
OpenStep was designed to be implemented independently of the
computer's operating system, hardware, and user interface.
The API for Rhapsody will be a superset of OpenStep's.
When the OpenStep API is implemented for a specific platform
and made into a product, it is written in uppercase,
e.g. OPENSTEP Developer 4.2 for Mach, or OPENSTEP Enterprise
for Windows NT and Windows 95. Versions of OPENSTEP exist
for Windows 95/NT, Solaris, HP/UX, and Mach.
(1999-11-25)
AppKit
GRAPHICAL USER INTERFACE TOOLKIT FOR MACOS APPLICATIONS
NSView; NSWindow; NSApplication; NSResponder; Appkit; Application Kit
<tool> A set of objects used by the application builder for
the NEXTSTEP environment.
(1995-03-13)
Wikipedia
OpenStep
OpenStep is a defunct object-oriented application programming interface (API) specification for a legacy object-oriented operating system, with the basic goal of offering a NeXTSTEP-like environment on non-NeXTSTEP operating systems. OpenStep was principally developed by NeXT with Sun Microsystems, to allow advanced application development on Sun's operating systems, specifically Solaris. NeXT produced a version of OpenStep for its own Mach-based Unix, stylized as OPENSTEP, as well as a version for Windows NT. The software libraries that shipped with OPENSTEP are a superset of the original OpenStep specification, including many features from the original NeXTSTEP.
