DRDOS.SYS
A DOS that aimed to be reborn,
Compatible with IBM and MS,
Dr. DOS, it aimed to impress.
Digital Research, he left behind,
Derived from Concurrent PC DOS,
A successor to CP/M-86, it chose.
Novell DOS and Caldera OpenDOS, they changed,
But Dr. DOS, it stayed the same,
A disk operating system with a famous name.
A DOS that paved the way,
With its introduction, it aimed to be,
Compatible with IBM and MS-DOS, you see.
A disk operating system that lives on,
A piece of history, a tech delight,
Dr. DOS, shining bright.
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