What kind of operating system is ms-dos?

ms-dos is a disk operating system provided by Microsoft Corporation of the United States. The disk operating system is the most basic equipment in IBM PCs and compatible machines, and [MS-DOS] is the most commonly used disk in personal computers. One of the operating systems.

#The operating environment of this article: Windows 7 system, Dell G3 computer.

MS-DOS (Microsoft Disk Operating System) is a disk operating system provided by Microsoft Corporation of the United States. Before Microsoft Corporation of the United States launched Windows 1.0, Windows 3.0, and the operating system Windows 95 launched on August 24, 1995, the disk operating system was the most basic equipment in IBM PCs and compatible machines, while MS-DOS was the most basic equipment in personal computers. One of the most commonly used disk operating systems in .

The most basic MS-DOS system consists of a boot sector based on the master boot record (only hard disks have master boot records, floppy disks do not have master boot records). The boot sector is located in the magnetic sector of track 0, and the content is the same as the MBR of the hard disk. It consists of a slightly different BOOT boot program and three file modules. These three modules are the input and output module (IO.SYS), the file management module (MSDOS.SYS) and the command interpretation module. (However, in MS-DOS 7.0, MSDOS.SYS was changed to the startup configuration file, and IO.SYS added the functions of MSDOS.SYS) In addition, Microsoft also added several Standard external programs (i.e. external commands), together with internal commands, build a relatively complete human-computer interaction environment in the era of disk operations. For various commands for MS-DOS, see MS-DOS Command List.

MS-DOSUsers can control system configuration by editing two system files located in the root directory of the boot disk. They are CONFIG.SYS and AUTOEXEC.BAT. IO.SYS will check CONFIG.SYS to load the specified hardware driver, and then automatically execute the batch instructions contained in AUTOEXEC.BAT.

MS-DOS generally uses the command line interface to accept user instructions. However, in later versions of MS-DOS, DOS programs can also enter graphics mode by calling the corresponding DOS interrupt, that is, graphics under DOS. interface program.

Earlier versions of MS-DOS did not support FAT32, long file names, and large hard disks. Starting from MS-DOS 7.0, especially MS-DOS 7.10 version, these are fully supported.

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