And combined with UMSDOS (https://en.wikipedia.org/wiki/UMSDOS https://en.wikipedia.org/wiki/UMSDOS), which stored the Linux files as if they were normal files

And combined with UMSDOS (https://en.wikipedia.org/wiki/UMSDOS https://en.wikipedia.org/wiki/UMSDOS), which stored the Linux files as if they were normal files in the MS-DOS FAT partition, you could run Linux as if it was a normal MS-DOS program (except that you had to reboot to get back to DOS).