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OS X is Apple's that runs on computers. It was first released in 2001 and over the next few years replaced Mac OS 9 (also known as Mac OS Classic) as the standard OS for Macs. It was called 'Mac OS X' until version OS X 10.8, when Apple dropped 'Mac' from the name.OS X was originally built from NeXTSTEP, an operating system designed by NeXT, which Apple acquired when Steve Jobs returned to Apple in 1997. Like NeXTSTEP, OS X is based on and uses the same Mach. This kernel provides OS X with better capabilities and improved management compared to Mac OS Classic. While the change forced Mac developers to rewrite their software programs, it provided necessary performance improvements and for future generations of Macs.The OS X interface is called the and includes several standard features.
OS X does not have a like, but instead includes a, which is fixed at the top of the screen. The menu bar options change depending on what is currently running and is only hidden when full screen mode is enabled. The Finder also includes a, which is displayed by default on the bottom of the screen.
The Dock provides easy one-click access to frequently used applications. The Finder also displays a user-selectable desktop background that serves as a backdrop for and open.When you start up a Mac, OS X loads automatically. It serves as the fundamental, but also works behind the scenes, managing and applications. For example, when you double-click an application icon, OS X launches the corresponding program and provides memory to the application while it is running.
It reallocates memory as necessary and frees up used memory when an application is quit. OS X also includes an extensive, or library of, that developers can use when writing Mac programs.While the OS X interface remains similar to the original version released in 2001, it has gone through several updates, which have each added numerous new features to the operating system. Below is a list of the different versions of OS X, along with their code names. Mac OS X 10.0 (Cheetah).
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Mac OS X 10.1 (Puma). Mac OS X 10.2 (Jaguar).
Mac OS X 10.3 (Panther). Mac OS X 10.4. Mac OS X 10.5. Mac OS X 10.6. Mac OS X 10.7.
OS X 10.8. OS X 10.9. OS X 10.10.
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TechTerms - The Tech Terms Computer DictionaryThis page contains a technical definition of OS X. It explains in computing terminology what OS X means and is one of many software terms in the TechTerms dictionary.All definitions on the TechTerms website are written to be technically accurate but also easy to understand. If you find this OS X definition to be helpful, you can reference it using the citation links above. If you think a term should be updated or added to the TechTerms dictionary, please!
NeXTStep was developed primarily by Avie Tevanian. The coder previously worked on the, a supercharged version of UNIX, at Carnegie Mellon University.Jobs convinced Tevanian to join NeXT instead of taking what, in the short term, would have been a far more lucrative job at Microsoft.
Tevanian later joined Apple in 1997, before leaving in 2006 after serving as chief software technology officer. Another key employee on NeXTStep was Bud Tribble, who had been a member of the original Macintosh design team. As the above video shows, NeXTStep looks surprisingly close to OS X today.
You can see a few stylistic differences, but it packed all the ingredients to eventually form the basis for OS X. The most recognizable feature? A dock for frequently used programs or applets. The NeXTStep in Steve Jobs’ careerBefore it got to that point, NeXT tried and failed to make a serious go of its hardware business. Despite producing beautifully designed and technically superior machines (this was the system Tim Berners-Lee used to develop the World Wide Web while at CERN), NeXT and started to focus on software.