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|Common name||Windows 98-tan|
|Also known as||Hacchan, Memphis, 98 First Edition|
|Height||*none officially listed|
|Hair color||navy blue|
|System personified||Windows 98 (first edition)|
|Debut||v.4.10.1998 (25 Jun 1998)|
98-tan is represented as a shy schoolgirl with short dark blue hair, wearing a navy blue and white school uniform with a Windows logo clip on her tie, and a gold "98" hairclip on the left side of her head.
The earliest representation of Windows 98 was that of a blue stick-figured box modeled after the toy Vulcan 300 from the anime and manga series "Konjiki no Gash Bell". It was a placeholder until an actual character was created, but is still depicted alongside 98-tan as a guardian to her, a friend, or a mech she can pilot.