Which calculator brand used the tagline "A Smarter Way of Thinking" in its breakthrough 1990s marketing campaign that positioned calculators as essential thinking tools rather than mere computational devices?

The intersection of mathematics and marketing has produced some fascinating campaigns and taglines over the years. From calculator brands to educational software, mathematical products have employed clever advertising strategies to capture market share and build brand identity. This trivia question tests your knowledge about a famous tagline that revolutionized how a particular mathematical tool was marketed to students and professionals alike.

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Texas Instruments
Casio
HP (Hewlett-Packard)
Sharp