It&#x27;s not that insane, it&#x27;s a secure, locked down device to do what you need it to do and not message answers between students, etc.<p>Android and IOS would need a lock down mode to only allow a particular ti-8x app to run and the control would have to be handed to a teacher for non-school devices.<p>Not to say the TI-85 couldn&#x27;t technically be modified to save information in a way that couldn&#x27;t be found thanks to ASM.  Luckily I didn&#x27;t need this ability.