[LeonM]

During college, we used Ti-89 calculators, like the ti-83, but with more ram/rom, higher resolution display etc. It has simple apps such as a notepad and spreadsheet.

Our professor didn't worry about cheating, he just designed the tests while keeping in mind probably every student had written notes on their calculator. In fact, he allowed us to have all our notes and books with us while performing the test, just like you would do in the real world when tackling a difficult problem.