Which calculator brand first introduced the groundbreaking graphing calculator technology to the mass market in 1985, creating a new product category that would dominate mathematics education for decades?

Before smartphones and computers became ubiquitous, specialized calculating devices dominated mathematics education and professional work. One particular brand revolutionized the market with innovative products that made advanced mathematics accessible to students and professionals alike. This poll tests your knowledge about the retail branding and market impact of calculator manufacturers that transformed how we approach mathematical problems.

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Texas Instruments with the TI-81
Casio with the fx-7000G
HP with the HP-28C
Sharp with the EL-5200