Contrary to what the article offhandedly suggests ("there are some drawbacks to using an online calculator on tests -- it's trickier to spot cheating, for examp

Contrary to what the article offhandedly suggests ("there are some drawbacks to using an online calculator on tests -- it's trickier to spot cheating, for example"), I'd wager an online-only service can be locked down in ways that the TIs couldn't be, and with considerably less manual effort. A common practice before standardized exams was resetting the RAM and the Archive, and deleting Apps; some school districts even use special Apps written for the calculator to enforce that it doesn't contain unauthorized code. Meanwhile, server-side code running somewhere else produces a clean environment for every user.