The Casio PB-100, introduced in 1982, is a compact and portable pocket computer designed for users who want to get acquainted with BASIC programming. With 1 kilobyte of built-in memory, the PB-100 offers space for storing programs and data. The device features an LCD screen capable of displaying 12 characters and a keyboard with 53 keys for input. The PB-100 is powered by two CR2032 button cell batteries and supports optional expansions such as the OR-1 RAM module for additional memory. This pocket computer is ideal for both beginners and vintage electronics enthusiasts interested in the basics of programming and computer use. The calculator will be packed carefully.