UNIX (PN)~ A powerful multiuser multitasking operating system initiall…
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UNIX (PN)~ A powerful multiuser multitasking operating system initially developed at AT&T Bell Laboratories in 1969 for use on minicomputers. UNIX is considered more portable that is less computer-specific than other operating systems because it is written in C language. Newer versions of UNIX have been developed at the University of California at Berkeley and by AT&T.