3. Mini Calculator from Casio
Where It Was Sold: Department Stores and Electronics Retailers
Organisation: Casio
Initial Cost: $120*
With the Casio Mini Calculator, the device that contributed to a 1960s revolution in mathematics and other fields, you can push the buttons of history. By democratizing the power of computation, this little genius changed how people approached money management, homework, and daily problem-solving.
Casio Tiny Calculator @ Office Depot/YouTube
Because of its affordable price and small size, it has become a commonplace item in homes and offices, demystifying math and making it understandable to all. The Casio Mini could unlock potential, demonstrating how big intelligence frequently comes in small packages.