Microsoft and Linux

Microsoft’s long and occasionally awkward history with UNIX-based OSs began with its release of Xenix (a port of UNIX System V to the PC) in 1980, which was later acquired by the Santa Cruz Operation. In 1993, Microsoft released a POSIX component as part of Windows NT in response to U.S. federal government requirements; it was subsequently replaced by the Windows Services for UNIX in Windows XP and Windows Server 2003, but later removed in Windows Vista and Windows Server 2012.

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