OneNote comes packaged up with Microsoft Office suite, so you'll need to install that to utilize its full potential. Searching for the information becomes much easier too.
What does OneNote do with all that information, though? It brings everything together into a single piece and organizes it so you can easily share it with others. You can also store photos, audio, and video snippets, and do a lot more, so it's pretty convenient. Don't get it wrong though OneNote is not specifically meant for writing stuff only. It collects, organizes, and shares digital information. OneNote is a PIM (personal information management) and note-taking app.
