SCO UNIX 3.21 39.5M UNIX is much more professional than DOS, and its functions in all aspects are also much more advanced.
http://software-archive.tifan.la/~firststep/sys/unix312.rar
MSDOS 7.1 Complete Floppy + CD Installation Version 7.6M This is combined by Wengier and others separated from WIN98, and adding some tools extracted from MSDOS7/6 and ROMDOS7, and has been improved and made into an installation program, making a complete version. Among them, the CD version has some accessories, such as some Chinese character systems and some tool software. The compressed package of the CD version is a CD image file, which can be directly burned into a bootable CD, or the files in it can be extracted with WINRAR. The improved FDISK supports hard drives up to 512G, and DOS7.1 also supports FAT32 partitions up to 2TB (1TB = 1024GB). It fully supports long file names, FAT32 and other functions, so this is the most practical and best DOS version currently. In addition to supporting WIN98, it can also install and boot WIN3X/WIN95 on it, allowing them to support FAT32. Strongly recommended
http://newdos.yginfo.net/dosart32.htm
DRDOS6.0 An excellent non-MicroSoft DOS system. Because its performance is far superior to the then popular MSDOS3.3X, it once threatened the dominant position of MS-DOS. When MS-DOS reached 6.0, it was still a tie, and it failed until MS-WINDOWS3.X came out. A somewhat tragic history. DISK1 DISK2
http://software-archive.tifan.la/~firststep/dos/drdos-1.img
http://software-archive.tifan.la/~firststep/dos/drdos-2.img
QW National Standard Chinese Character System Qu区位 code viewing software. This was compiled by the forum administrator before. The reason is that the qu区位 code viewing programs of general Chinese character systems hide the characters in zones 11-15 and after zone 87, and these characters are sometimes useful, such as the commonly used additional characters in zones 88 and 89 of UCDOS. This software can help you input special characters with qu区位 code.
http://software-archive.tifan.la/~firststep/dos/qw.exe
GHOS 48K Guanghui Chinese Character Input Platform, a very excellent mini Chinese character system, the author is Wang Xianbing. It can be executed by just adding the Chinese character library HZK16 of UCDOS or 213 system. Unfortunately, I don't know which input methods of those systems it can hook up with. Thanks a lot to Fang Shao for providing
http://software-archive.tifan.la/~firststep/dos/ghos.exe
First release z01, go downstairs to post z02. 
(Remember to remove the suffix.zip like z01.zip!) Download z01
