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Windows
Windows is a personal computer operating system developed and released by Microsoft as part of the Windows NT family of operating systems. It was first released on July 29, 2015
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Microsoft Office
Desktop versions of Office 2016 applications: Word, Excel, PowerPoint, OneNote and Outlook, plus Access and Publisher for PC only Tooltip about current Office versions
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Red Hat Linux
The primary difference between Linux and many other popular contemporary operating systems is that the Linux kernel and other components are free and open-source software. Linux is not the only such operating system, although it is by far the most widely used.