Psion 3c

The Psion Series 3c is a highly versatile palmtop computer designed and built in the UK. It is powered by a 7.68 MHz NEC V30H microprocessor (an enhanced 80C86), and runs Psion's EPOC16 operating system. It has a 480x160 liquid crystal display capable of two levels of grayscale and is equipped with a switchable electroluminescent backlight. The Series 3c has two megabytes of ROM containing the operating system and numerous applications programs, and one or two (two in the case of my units) megabytes of battery-backed static RAM for system memory as well as file storage.