I haven't regarded this as a big issue for exams. Students need the computer for a number of HW assignments, and for their final projects, but I've never given an in-class exam that used a computer, and I doubt that I ever will. I used to be quite consistent in not allowing calculators on exams, which ensured that I designed exams that didn't involve much arithmetic, and that's still my preference. (I can provide output; students have other chances to show that they know how to persuade a computer to give them the output. On the exam, I want to use the time to assess understanding of what the output means.) Not that long ago, I felt that allowing calculators would have given students who had them an unfair advantage, but these days that no longer seems much of an issue.

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