This compact, battery-powered device, introduced by Casio in the 1980s, provided users with basic arithmetic functions, including addition, subtraction, multiplication, and division. Often featuring a liquid crystal display (LCD) and a simple keyboard layout, it served as a portable and affordable tool for everyday calculations. Similar models from the era frequently included features like percentage calculations, square roots, and memory functions.
The device represented a significant step in the democratization of computing technology. Its portability and low cost made it accessible to a wider audience than larger, more expensive desktop calculators. This accessibility contributed to its widespread adoption in schools, homes, and businesses, influencing how mathematics was taught and used in daily life. It also paved the way for more advanced portable calculators with scientific and programmable functions.