PC-DOS(redirected from PCDOS)
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PC-DOSThe DOS operating system originally developed by Microsoft for the IBM PC. Up until DOS 6, PC-DOS was almost identical to Microsoft's MS-DOS for non-IBM PCs, and both versions were called "DOS." In IBM PCs, PC-DOS was the underlying operating system of Windows 3.x and was booted before Windows was loaded. See DOS 6.
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