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In contrast to these protected mode operating systems, DOS, by default, is a real-mode operating system, switching to protected mode and virtual 86 mode only on behalf of memory managers and DOS extenders in order to provide access to extended memory or map in memory into the first megabyte, which is accessible to normal DOS programs.
In Windows 3.1, additional options are available, such as /3, which starts Windows in 386 enhanced mode, and /S, which starts Windows in standard mode [2] A startup sound was first added in Windows 3.0 after installing the Multimedia Extensions (MME), [ 3 ] but not enabled by default until Windows 3.1.
Windows will use the old MS-DOS 16-bit drivers if they are installed, except on Windows Me. In Windows Me, DOS is still running, but Windows will ignore any attempt to load its device drivers when parsing the AUTOEXEC.BAT, and will move the environment variables that it still recognizes from the CONFIG.SYS into the Windows Registry.
System Management Mode (SMM, sometimes called ring −2 in reference to protection rings) [1] [2] is an operating mode of x86 central processor units (CPUs) in which all normal execution, including the operating system, is suspended.
A compatibility mode in an operating system is a software mechanism in which a computer's operating system emulates an older processor, operating system, and/or hardware platform in order to allow older software to remain compatible with the computer's newer hardware or software.
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The development of Windows 95 (codenamed Chicago) began around March 1992, [1] [2] [3] just after the release of Windows 3.1 and designed to be the successor to both Windows 3.1 and Microsoft's text-based MS-DOS. [4] At this time, Windows for Workgroups 3.11 and Windows NT 3.1 were still in development at Microsoft.
The buzziest buzz term in the tech world is suddenly “founder mode,” coined only days ago and fast propagating into business worldwide. Founder mode is a way of running a company—the way a ...