So, DOS or Disk Operating System happens to be the best operating system ever; surpassing all the other computer-program-management systems like UNIX and Linux (or GNU/Linux according to Linux enthusiasts (or GNU+Linux according to Linux purists)).
Direct hardware access, or memory management;
Single-user or Multi-User;
CLI or TUI or GUI;
All depending on what YOU want or need for a certain project.
But a tiny problem.
It requires a BIOS to be present, the very same BIOS that Intel is planning to axe off. I hence propose, in order to preserve such a work of art for our progeny, and to ensure the PC does not lose her true operating system, we must make a UEFI version of it.