Which calculator product release in the 1970s is credited with making advanced mathematical functions widely accessible to students and is considered a turning point in mathematics education product marketing?

Before smartphones and computers, mathematical calculations required dedicated devices. The evolution of calculators represents one of the most significant product development stories in mathematics. Different companies employed various marketing strategies to position their products as essential tools for education, business, and science. This trivia tests your knowledge about a pivotal moment in calculator product history that transformed mathematics accessibility.

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Texas Instruments TI-30 (1976), marketed as 'The Student Calculator' at an affordable $25 price point
Hewlett-Packard HP-35 (1972), marketed as the first scientific pocket calculator but priced at $395
Casio fx-7000G (1985), marketed as the first graphing calculator for educational use
Sharp EL-500 (1978), marketed with the slogan 'Mathematics in Your Pocket' for professional engineers