One note is a program created by Microsoft to allow users to take notes and organize them into categories and sub-categories.
1) Search for One Note in your start menu. The Icon will look as follows.
2) When the software loads up, the top bar is where you start.
1 -This is your notes tab. Think of these as large sticky notes. You can create notes, tables and add images. You can add pages to these notes.
2 - This + button adds more tabs for more notes. You start with Quick Notes by default.
3 - Adding a new section allows you to create a new set of tabs for other uses.