OneDrive/Sharepoint
Introduction and training – OneDrive
OneDrive is your personal space where you can save files. You own them, but if you want, you can share selected documents with others, and in real time, together and from anywhere, work in the document and update it.
OneDrive video training (page from Microsoft)
Introduction and training – SharePoint
SharePoint is a common area where files from a team are saved. The files are shared within the team and all team members can work with the files in real time.
Video: Create, upload, and share files in a document library (page from Microsoft)