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小 发表于 2008-5-7 16:37 只看该作者
不妨看看wikipedia上的说法。引用: 引用: End of MS-DOS
MS-DOS has effectively ceased to exist as a platform for desktop computing. Since the releases of Windows 9x, it was integrated as a full product mostly used for bootstrapping, and no longer officially released as a standalone DOS, although at first DOS 7 (which was the DOS part included in Windows 95) had been developed as a standalone OS[citation needed]. It was still available, but became increasingly irrelevant as development shifted to the Windows API.
Windows XP contains a copy of the core MS-DOS 8 files from Windows Millennium, accessible only by formatting a floppy as an "MS-DOS startup disk". Attempting to run COMMAND.COM from such a disk under the NTVDM results in the message "Incorrect MS-DOS version". (Note that the DOS boot disk created by Windows XP is even more stripped-down than that created in Windows 98, as it does not include CD-ROM support.)
With Windows Vista the files on the startup disk are dated 18th April 2005 but are otherwise unchanged, including the string "MS-DOS Version 8 (C) Copyright 1981-1999 Microsoft Corp" inside COMMAND.COM.
Today, DOS is still used in embedded x86 systems due to its simple architecture, and minimal memory and processor requirements. The command line interpreter of Windows NT, cmd.exe, maintains most of the same commands and some compatibility with DOS batch files.
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