What is UNIX ?
                                                                
                                                                
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Class : Class 7 
                                                                                                
                                                                                                Unix (/ˈjuː.nɪks/; labeled as UNIX) is a family of multitasking, multiuser PC operating systems that derive from the original AT&T Unix, developed in the 1970s at the Bell Labs research station by Ken Thompson, Dennis Ritchie, and others.
                                                                                            
                                                                                             
             
             
        