DOS is one of the most popular operating systems on personal operating systems. One of the most important MS-DOS since the 1981 launch of the first 1.0 version of the development, has been a number of versions, more and more powerful functions, but also more practical. The development of its major versions is listed below.
MS-DOS 1.0 was released in 1981 as an IBM PC operating system that supports 16K memory and 160K 5-inch floppy disks.
MS-DOS 1.1 corrects many of the problems in version 1.0 and supports a 320K 5-inch floppy disk.
MS-DOS 2.0 was released with the IBM XT, adding many commands and supporting 5M hard drives.
MS-DOS 2.1 adds a little bit of functionality on a 2.0 basis.
MS-DOS 3.0 adds support for the new IBM at hardware and some LAN features.
MS-DOS 3.1 adds more LAN functionality support.
MS-DOS 3.2 supports a 720K 5-inch floppy disk.
MS-DOS 3.3 supports new IBM PS/2 devices and 1.44M 3-inch floppy disks, and supports character sets in other languages.
MS-DOS 4.0 adds a Dosshell operating environment with some additional enhancements and updates.
MS-DOS 5.0 was released in 1991 and has added good memory management and macro capabilities to enhance Dosshell.
MS-DOS 6.x has increased the number of graphical interface programs (such as scandisk,defrag,msbackup, etc.), increased support for 586 of computers, disk compression, and enhanced Windows support.
MS-DOS 7.0 adds features such as long file names, LBA large hard drives, enhanced support for new windows, and enhanced commands.
MS-DOS 7.1 fully supports FAT32 partitions, large hard drives, large memory, etc., and updates some features, such as four-bit years of support, is currently the most practical DOS version.
In addition to MS-DOS, other DOS has been evolving, 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!