OpenStep
OpenStep
(operating system)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" atboot time).
OpenStep was designed to be implemented independently of thecomputer'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 platformand made into a product, it is written in uppercase,e.g. OPENSTEP Developer 4.2 for Mach, or OPENSTEP Enterprisefor Windows NT and Windows 95. Versions of OPENSTEP existfor Windows 95/NT, Solaris, HP/UX, and Mach.