2k-tan

2k-tan is a character from OS-tan, a Japanese internet meme that originated within the Futaba Channel. She is the personification of Windows 2000 and one of the first characters created. A few variants exist, but the most common is 2k-tan, the personification for Windows 2000 Professional.

Name
"2k" in Japanese is "Ni-Ke", the meowing sound in Japanese is "nya", so she is also known as "Nya-ke".

Appearance
2k-tan is typically drawn as an intelligent, professional, reserved looking woman with short blue hair, glasses, and hair clips that resemble cat ears flanking a small white bonnet or ruffle, similar to maid's hair clip that shows the windows logo. Her outfit resembles a swimsuit suggesting the Windows logo colors, and she wears a blue long coat. The blue in the picture in her avatar is close to the default Windows 2000 desktop color background. An alternate design, playing on the punny name of "Nya-ke", shows her having real cat ears and a tail (instead of mechanical cat ear-shaped hair clips), matching her swimsuit, gloves and boots.

Personality
2k-tan often acts like the older sister or dependable woman among the Windows-tans and is one of the domain controllers for this reason. In addition, because of the greater stability of Win2K compared with WinME (which was released around the same time), 2K-tan is often described as a guardian of ME-tan.

OS-tan
In early depictions, there is a strip where 2k-tan derides XP-tan and calls her an "Activation Whore" since XP required activation over the phone or internet to set up; this was a change in Windows that was widely criticized at the time. She generally fills the role in the manga as the typical eye candy character, but alternate interpretations may be starting to change this.