PTS-DOS
From OS-Tan Collections Wiki
PTSDOS-tan (PTSDOSたん) is one of the least common DOS personifications. She personifies PTS-DOS. PTS-DOS is a disk operating system, a DOS clone, developed in Russia by PhysTechSoft. Closely aligned with the Russian Military, PTS-DOS was a clone of MS-DOS for the Russian Military. She is personified as a light blue-haired woman with Russian-style braided hair in traditional Russian garb armed with a giant nut driver. She is usually accompanied by her clone, PC-DOS.
See also: