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In 1969, the price was $150. Then, in 1983, it changed to $400 and through the years it increased to $800.
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This is the logo.
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The people who created it were Ken Thompson, Dennis Ritchie, Brian Kernighan, Douglas McIlroy, Michael Lesk and Joe Ossanna.
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The name of the Operating System is UNIX.
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The Unix Operating System was created by AT&T.