In the age of AI and chatbots, Casio is still selling millions of calculators
A calculator never hallucinates its answers, though scientific ones can make you suffer anyway
Once again, the tech industry descended on Berlin with an overwhelming number of gadgets. As hundreds of exhibitors were spread across thousands of square feet of space, finding the show's highlight products wasn't easy. But we spent days trawling through IFA to discover the best it had to offer.