Which company launched the first commercially successful graphing calculator (TI-81) and still dominates the educational market with minimal price reductions despite decades of technological advancement?

The graphing calculator market represents one of the most fascinating product success stories in educational technology. A specialized tool that became mandatory in mathematics classrooms across the world, these devices maintain surprisingly high price points despite decades on the market and relatively modest hardware improvements. This poll explores the business and marketing strategy behind one of mathematics education's most recognized products.

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Texas Instruments
Casio
Hewlett-Packard
Sharp Electronics