Software that provides a calendar, to-do list and other daily management tools.
A dedicated electronic device that is used to schedule appointments and tasks. Prior to the advent of smartphones, personal information managers (PIMs), which had a fixed number of functions, were very popular. After smartphones, dedicated portable devices such as the PIM, music player and GPS navigation units began to lose favor, because the smartphone could perform all those functions and countless others. See PIM
A Computer Is an Organizer
The French word for computer is "ordinateur," which means organizer and is perhaps a better word for a device that is used so much for organization.
Organizer Vs. Smartphone
Devices such as this Texas Instruments organizer from the early 1990s (left) were very popular until smartphones came along. The Galaxy Note II (right) is thinner, lighter and can run any of hundreds of thousands of apps and games.