Years before wolfram alpha, we had TI-89s with computer algebra systems for cheating your way through highschool math.

Oh yeah, it's why most of my classes restricted us to TI-83s. The TI-89 was restricted in schools to basically calc and above, and the TI-92 was just banned. Lol

In my school TI-89s were unrestricted, but I think that was mostly because teachers were only trained with 83s and assumed the 89 had equivalent capabilities. The SAT permitting the 89 probably had something to do with it too, since the 92 was banned (because qwerty as I understand it.)