Casio, for the first time, uses the term "Personal computer" for its small products; older models are classified as “Programmable Calculator”. The PB 80 weighs approximately 100 g, has an LCD monitor that can display twelve characters on a line and a keyboard that, despite its small size, complies with the QWERTY standard. All the electronics are enclosed in just two integrated circuits, one contains the processor, the display driver, the keyboard control and the ROM with the integrated Basic, and the other the RAM (1 KB). Including memory pack accessory. Manuals in Italian. Made in Japan.