An electronic organizer (or electric organizer) is a small calculator-sized computer, often with an in-built diary application but few other functions such as an address book and calendar. It normally has a small alphanumeric keypad and an LCD screen of one, two or three lines.
Opened Sharp Electric Organizer model (sold as Sharp Wizard in the US) model ZQ-770.
An SF-R20 Digital Diary featuring 256KB RAM, from around 1993.
Casio Business Navigator BN-40A.
Because of the advent of personal digital assistants, and later smartphones in the 2000s and 2010s respectively, both of which have a larger set of features, electronic organizers are rarely seen today.