|Common name||Mac OS8-tan|
|Also known as||Veronica, Tempo|
|System personified||Mac OS 8.0 - 8.6|
|Debut||July 26, 1997|
|Latest release||v8.6 (May 10 1999)|
Mac OS8-tan was originally a character occasionally seen at Futaba Channel. Better known as Tempo-tan, she was depicted as a young, timid-looking, but otherwise cheerful little girl with a bomb-shaped diaper and a hat in the shape of the the rainbow Apple logo of the classic Macintosh (including a white patch to simulate the bite mark_. She was rarely seen, and pictures of this version are only available at an old archive specializing in the Mac OS girls, located at http://evo7gt-a.hp.infoseek.co.jp/osmac/. The Mac OS8-tan depicted in the avatar is based on the character design created by Aurora Borealis. This version depicts Tempo-tan as older, more outgoing, and slightly war-torn (after the market competition wars with Microsoft in the mid-to-late 1990's), but with the same cheerful disposition as her younger self. The beret she wears, as well as her proficiency in bomb-wielding, is also a throwback to the younger version. She often accompanies Mac-tan/Mac OSX-tan on the daily sorties against perverts, particuarly the Mac OSX-kuns.
In the OS-tan Annex Project backstories, Mac OS8-tan was born as Mac OS 7.7-tan and was raised as a fighter during the thick of the OS Wars as a child and was willing to risk her life. During her mission to stop the Mac Clone-tans (who were actually did more harm than help to the Mac-tans) and exile them from the Apple Family's remaining territory, her name was changed to Mac OS8-tan, as a parallel to the Mac clones of the 90's being forced to discontinue since the clones were only licensed to run Mac OS 7.x. Other actions of hers also contributed to the comeback the Mac-tans made starting in 1998 which paved the way for future successes.