Electronic organizer

Typically, it has a small alphanumeric keypad and an LCD screen of one, two, or three lines.

They were very popular especially with businessmen during the 1990s, but because of the advent of personal digital assistants and palmtop PCs in the 1990s, as well as smartphones in the 2010s, all of which have a larger set of features, electronic organizers are mostly seen today for research purposes.

One of the leading research topics being the study of how electronics can help people with mental disabilities use this type of equipment to aid their daily life.

[1] Electronic organizers have more recently been used to support people with Alzheimer's disease to have a visual representation of a schedule.

[2] The electronic diary or organizer was first patented by Indian businessman Satyanarayan Pitroda in 1975.