Windows 3.1
From OS-Tan Collections Wiki
A rare character, the few appearances of Windows 3.1 have used a white mech-box similar to that used by 98 and 98SE, piloted by a girl who appears to be DOS/V. Another version becoming more popular is a frail grey-haired young woman in a long frilly violet gown, with a 3.1 brooch on her collar. She is usually accompanied by either a black cat or a small black-haired catgirl in a nurse's outfit, both representing DOS.
