I watch Judge Judy enough to know that she's been using the same calculator for years and years. In the dispute in the clip above, a woman is suing her ex for overdrawing a joint checking account. He took out $1000 in cash, and then spent another $1500 on food, gas, and stuff from Skywalker Productions (which I'm thinking has to be Star Wars-related). JJ lent them her calculator to figure out the total amount, but neither the plaintiff nor the defendant could figure out how to use it (the one guy actually refers to it as a "computer").