[mattl]

They list OPENSTEP and NeXTSTEP as separate OSes too...

[pjmlp]

And they were, NeXTSTEP did not run on Sun workstations.

That would be like saying NextSTEP and OS X were the same as well.

[mattl]

NeXTSTEP 3.3 released on SPARC and other non-NeXT 68k platforms.

[pjmlp]

While I might stand corrected on that detail, OpenStep, OPENSTEP and NeXTSTEP had enough differences among themselves, with OpenStep also running on Windows, and many of the Sun's experiments with OpenStep own frameworks being on the genesis of Java and JavaEE.

[mattl]

Yeah, OPENSTEP for Mach (operating system) vs OpenStep (framework) vs OPENSTEP Enterprise (for Windows)