Which calculator company first introduced a Computer Algebra System (CAS) in their graphing calculators that could manipulate algebraic expressions symbolically rather than just numerically?

In the world of mathematics education and professional computation, calculator brands have evolved significantly with changing technologies and teaching methodologies. The packaging, marketing, and design strategies of these products reflect both technological advancement and understanding of the needs of mathematics professionals and students. This trivia tests your knowledge of a significant product design milestone in calculator history that revolutionized how students approach mathematical problems.

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Texas Instruments with the TI-92 in 1995
Casio with the fx-7000G in 1985
Hewlett-Packard with the HP-28 in 1987
Sharp with the EL-9600 in 1996