Which mathematical product development revolutionized education in the 1970s by making advanced calculations accessible to students and was advertised as a 'personal calculator'?

Throughout history, the development of mathematical tools and products has transformed how we teach, learn, and apply mathematics. From ancient counting devices to modern computational software, these innovations have shaped mathematical education and practice. This trivia tests your knowledge about a significant product development milestone in the mathematical tools industry that changed how we approach calculations and problem-solving.

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Texas Instruments TI-30 scientific calculator
IBM Mathematical Formula Translation System (FORTRAN)
Microsoft Excel spreadsheet software
Mathematica computational software