In research science, it's very normal to require zero aids at an interview, and has been for some time. No calculators, no laptops, no phones -- just you.

Yes, you'll also give a seminar with slides to present your prior work, but the whole point of the chalktalk is that it's you, and you alone, presenting your future plans. You're grilled by the faculty on your ideas, and you have to defend yourself without any props or crutches.