MS-DOS 4.0 (multitasking)
MS-DOS 4.0 was a multitasking release of MS-DOS developed by Microsoft based on MS-DOS 2.0. Lack of interest from OEMs, particularly IBM (who previously gave Microsoft multitasking code on IBM PC DOS included with TopView), led to it being released only in a scaled-back form. It is sometimes referred to as European MS-DOS 4.0, as it was primarily used there. It should not be confused with PC DOS 4.00 or MS-DOS 4.01 and later, which did not contain the multi-tasking features.
European MS-DOSEuropean MS-DOS 4.0European MS-DOS 4.1MS-DOS (multi-tasking)MS-DOS (multitasking)MS-DOS 4MS-DOS 4.0MS-DOS 4.0 (multi-tasking)MS-DOS 4.1MS-DOS 4.1 (multi-tasking)MS-DOS 4.1 (multitasking)Multi-tasking MS-DOSMulti-tasking MS-DOS 4.0Multi-tasking MS-DOS 4.1Multitasking MS-DOSMultitasking MS-DOS 4.0Multitasking MS-DOS 4.1SM.EXE
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.exeComparison of DOS operating systemsComparison of executable file formatsDOSDOS 4DR-DOSDevice fileError messageEuropean MS-DOSEuropean MS-DOS 4.0European MS-DOS 4.1FilenameIBM TopViewICL DRSMDOSMS-DOSMS-DOS (multi-tasking)MS-DOS (multitasking)MS-DOS 4MS-DOS 4.0MS-DOS 4.0 (multi-tasking)MS-DOS 4.1MS-DOS 4.1 (multi-tasking)MS-DOS 4.1 (multitasking)Multi-tasking MS-DOSMulti-tasking MS-DOS 4.0Multi-tasking MS-DOS 4.1Multitasking MS-DOSMultitasking MS-DOS 4.0Multitasking MS-DOS 4.1Multiuser DOSNew ExecutableSM.EXETimeline of DOS operating systems
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MS-DOS 4.0 (multitasking)
MS-DOS 4.0 was a multitasking release of MS-DOS developed by Microsoft based on MS-DOS 2.0. Lack of interest from OEMs, particularly IBM (who previously gave Microsoft multitasking code on IBM PC DOS included with TopView), led to it being released only in a scaled-back form. It is sometimes referred to as European MS-DOS 4.0, as it was primarily used there. It should not be confused with PC DOS 4.00 or MS-DOS 4.01 and later, which did not contain the multi-tasking features.
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MS-DOS 4.0 was a multitasking ...... in the multi-tasking features.
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Multitasking MS-DOS 4.00 Command.com Session on VirtualBox VM.
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May 2019
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MS-DOS 4.0 was a multitasking ...... in the multi-tasking features.
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MS-DOS 4.0 (multitasking)
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