95 OSR 2.1-tan
An extremely obscure OS-tan that originated from the 4-Koma series that introduced 95 OSR 2.5-tan. Although she was only mentioned in brief, an actual character was created in OSC, appearing as a brown-haired girl with a large bow in her hair like the other 95-tans. However, OSR 2.1-tan's bow is made of wires and cables and her shoulder-length hair is in a cyberpunk-like hairstyle. Similarly, she wears a steampunk-style outfit consisting of a black, grey and white dress with a pink bow and leggings, black steel-toed boots, brown leather gloves and belt, and a black kimono-style vest with a bronze OSR 2.1 brooch. Her steampunk appearance is meant to convey a high-tech look to what traditionally are old-fashioned Windows 95-tans.
OSR 2.1-tan is a sci-fi fanatic, more interested in the future than the present -- in fact, she introduced USB support to Windows, believing it to be the thing of the future. However 95 OSR 2.1's USB support didn't work well -- or rather, although OSR 2.1-tan prides herself as an old-fashioned tinkerer and inventor, her creations rarely work properly. She moved away from the rest of the Windows family and now lives far away on her own, so far away that one must write a letter just to ask a question. For this reason, she only contacts 95 OSR 2.5-tan with any regularity.