This is OPENSTEP 4.2 for Intel x86. This was the last OS that NeXT,
Inc. would release, making use of the OpenStep API that was developed
with Sun Microsystems. The OpenStep API was initially made to allow
NeXTSTEP object layers to run on Sun's Solaris operating system. The
end result was a number of implementations of OPENSTEP that supported
Intel x86, Sun SPARC, and NeXT 68K hardware (support for HP PA-RISC
hardware that was present in NeXTSTEP was dropped). In addition to
these implementations, NeXT and Sun released an implementation of
OpenStep for Solaris. However, Sun would soon turn its attention to
Java. For the most part, OPENSTEP 4.0 - 4.2 are essentially NeXTSTEP
with the OpenStep API placed on top.

The OpenStep API and OPENSTEP would go on to be incorporated into
Rhapsody, and later, Mac OS X, where the OpenStep API would be morphed
into Cocoa, a mainstay in Mac OS X development. However, Mac OS X is
not compliant with the OpenStep API specification. To find an
environment that is compliant with this specification, one must turn
to GNUstep, which is based off of OPENSTEP, which in turn is NeXT's
implementation of the OpenStep API. Got it?

* Note * OPENSTEP essentially refers to the OS developed by NeXT, Inc.
OpenStep refers to the framework and standard developed by NeXT and
Sun.

1st Download: User(Install) CD.

2nd Download: Developer CD

3rd & 4th Downloads: Install boot floppy's

5th Download: Pre-installed disk image for use with VMs

Check [www.nextcomputers.org][1]. It has a lot of information and a
great forum for support.

Compatibility

x86. Will run in VMWare or Virtualbox with some work

  [1]: http://www.nextcomputers.org (www.nextcomputers.org)