Organizer

Noun

1. A person who arranges the details of a public event.
2. A hand-held micro-computer that will perform specific tasks; can be used as an electronic diary, alarm clock, recorder of memos and notes, a portable database etc.

   "I'll add that meeting to my organizer."

3. A non-electronic notebook or calendar or something similar, used to organize one's affairs.
4. A group of cells that, together with the evocator, control differentiation in the embryo; the inductor
5. a recipient, such as a box or a case, used for storing gadgets, trinkets and other knick-knacks; an organizer box

   "desk organizer"