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Operating Systems - Key Terms

Crossword hints:
a family of Unix-like computer operating systems; one of the most prominent examples of free software and open source development, a brand name which covers several lines of personal computers designed, developed, and marketed by Apple Inc, the hardware and software specifications necessary to install software, software that communicates with the hardware and allows other programs to run, leads the industry as the most common operating system for Web servers, the collective brand name of several software operating systems by Microsoft,

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