The real travesty here is that calculators cost $100 USD. They have a Z80, some buttons wired up, and a very low res LCD screen. Students should be BUILDING these in their engineering classes. They must cost only a few dollars to make, it's disgusting that they cost so much because of forced lock in and requirements.

Maybe one of the first applications of RISC-V should be a fully open source graphing calculator. Then anyone could build one to the same spec and they would be cheap + help open source hardware.