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Guy Harris (talk | contribs) →Mac OS X: Use the reference fromXNU, which uses {{cite AV media}} and indicates how far into the video Jim mentions OSFMK 7.3. |
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===NeXTSTEP===
{{main|NeXTSTEP}}
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NeXTSTEP used a hybrid kernel that combined the [[Mach kernel|Mach 2.5]] kernel developed at [[Carnegie Mellon University]] with subsystems from [[BSD#4.3BSD|4.3BSD]]. NeXTSTEP also introduced a new windowing system based on [[Display PostScript]] that intended to achieve better [[WYSIWYG]] systems by using the same language to draw content on monitors that drew content on printers. NeXT also included [[object-oriented programming]] tools based on the [[Objective-C]] language that they had acquired from [[Stepstone]] and a collection of Frameworks (or Kits) that were intended to speed software development. NeXTSTEP originally ran on [[Motorola]]'s [[68k]] processors, but was later ported to [[Intel]]'s [[x86]], [[Hewlett-Packard]]'s [[PA-RISC]] and [[Sun Microsystems]]' [[SPARC]] processors. Later on, the developer tools and frameworks were released, as [[OpenStep]], as a development platform that would run on other operating systems.
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