Which calculator company revolutionized mathematics marketing in the 1990s with their 'unstoppable' campaign featuring extreme sports imagery?

In the world of mathematics education and resources, certain companies have revolutionized how mathematical concepts are taught and learned through innovative marketing strategies. These companies have developed unique approaches to making mathematics more accessible, engaging, and less intimidating for students of all levels. This trivia question focuses on a groundbreaking marketing approach that transformed the perception of a particular mathematical learning tool.

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Texas Instruments with their TI-83 graphing calculators
Casio with their FX series scientific calculators
HP with their RPN calculators targeting engineering students
Sharp with their EL series targeting business professionals