History of MS-DOS versions

DOS is the most popular operating system that is used by most people in a personal operating system. Among them, the most important MS-DOS from the 1981 release of the first version of 1.0 development so far, there have been a number of versions, more and more powerful functions, more and more practical. The development of its major version is listed below.

MS-DOS 1.0 was released in 1981 as an ibm pc operating system that supports 16 K memory and K 5-inch floppy disk.

MS-DOS 1.1 corrected many problems in Version 1.0, supporting a K 5-inch floppy disk.

MS-DOS 2.0 and 1983 are released along with ibm xt, adding many commands and supporting 5 m hard drives.

MS-DOS 2.1 adds a little functionality on the basis of 2.0.

MS-DOS 3.0 added support for new IBM at hardware and some LAN features.

MS-DOS 3.1 adds support for more LAN features.

The MS-DOS 3.2 supports a K 5-inch floppy disk.

MS-DOS 3.3 supports new ibm ps/2 devices and 1.44m 3-inch floppy disk and character sets in other languages.

MS-DOS 4.0 adds the dosshell operating environment and has some other enhancements and updates.

MS-DOS 5.0 was released in 1991, with good memory management and macro functions and enhanced dosshell.

MS-DOS 6.x large increase in graphic interfacesProgram(Such as Scandisk, defrag, and msbackup), added support for 586 computers, disk compression, and other functions, and enhanced support for Windows.

MS-DOS 7.0 added long file name, LBA large hard disk and other functions, enhanced support for the new version of Windows, and enhanced some commands.

MS-DOS 7.1 fully supports FAT32 partition, large hard disk, large memory, and updated some functions, such as the support of four-digit years, is currently the most practical DOS version.

In addition to MS-DOS, other DOS has been developing, especially freedos, Rom-dos, real/32 dos and so on. Let's continue to support the development of DOS to make it more powerful and practical!