MS-DOS MS-DOS
（重定向自Microsoft DOS）
![The original MS-DOS advertisement in 1981.](/Images/godic/202501/27/Msdosad3410.jpg")
![As of 2011, MS-DOS is still used in some enterprises to run legacy applications, such as this US Navy food service management system.](/Images/godic/202501/27/US_Navy_110129-N-7676W-152_Culinary_Specialist_3rd_Class_John_Smith_uses_the_existing_DOS-based_food_service_management_system_aboard_the_aircraft3410.jpg")
![MS-DOS界面](/Images/godic/202501/27/MS-DOS_Deutsch3410.png")
![Disquetes de instalación de MS-DOS 5.0](/Images/godic/202501/27/Disquetes_instalacion_MSDOS_503410.jpg")
MS-DOS (/ˌɛmɛsˈdɒs/ EM-es-DOSS; acronym for Microsoft Disk Operating System) is an operating system for x86-based personal computers mostly developed by Microsoft. It was the most commonly used member of the DOS family of operating systems, and was the main operating system for IBM PC compatible personal computers during the 1980s to the mid-1990s, when it was gradually superseded by operating systems offering a graphical user interface (GUI), in various generations of the graphical Microsoft Windows operating system by Microsoft Corporation.