说明：  The ROMOS 一个装在BIOS ROM 里的 FREEDOS
(The ROMOS is a stand-alone x86 code allows you to load and run your own binary code or 3rd-party code. ROMOS rely on BIOS functions only so it can be executed directly without any operating system. The main purpose of ROMOS is to be placed in a ROM, from where it can load/run other software)