Not to give my age away either, but in high school, for the rare classes that needed them, all we needed was a generic scientific calculator that included logar

Not to give my age away either, but in high school, for the rare classes that needed them, all we needed was a generic scientific calculator that included logarithmic and trigonometry functions. In engineering school, the HP-28, -42 and the new -48 series calculators where dominant. The build quality and "feel" were great. I don't even know if there was an equivalent TI model at the time.