If i was to install the original Dos Terminal that uses the Monolithic Kernel as my elementary Linux OS which now recognizes all Linux, Windows & MacOS file types would i be able to install & run Apple and Microsoft software like there native programs on elementary using the original 1981 Dos terminal as a install way for Windows & MacOS programs ?

There is not a way to install a non native program as if it were native but there are ways to use other operating system software non-natively.

I mean, "native" means "originating from", so when you are not running the software from its original environment it is by definition not native. If you are wanting to be able to read from linux Windows and Mac filesystems I have had luck reading from and transferring to Windows filesystems (NTFS, all the fat's) but have not ever tried reading from a Mac hardrive on my linux systems (At least, that I can remember)

K thanks but Will Dos install MacOS & Windows programs on elementary once i finish getting ms-dos installed since all three use the Monolithic Kernel either as a Monolithic kernel like Ms-Dos & Linux does or a Monolithic/Microkernel (Hybrid Kernel) like MacOS does?