UNIX is a famous operating system which was introduced in 1969 at Bell Labs (formally owned by AT&T but now NOKIA) and has been widely adopted in academia, industry, and government. It is the basis of many modern operating systems, including Linux and macOS. Which of the three OS categories does UNIX belong to? IBM, HP, and Sun Microsystems (now owned by Oracle) have developed their own brands of UNIX operating systems. What are these UNIX operating systems called?

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UNIX belongs to the category of proprietary operating systems It was initially developed at Bell L... View the full answer