SharePoint 2017 is probably the newest and latest series of SharePoint that was developed by Microsoft. It was developed alongside of OneDrive as one of the best and most reliable online storage in which you can store pretty much anything you want.
SharePoint in 2017 Prediction and Review
In that case, such thing referred there is the document or any files you want to store outside of your PC or simply any other means of storage. Compared to the previous series of SharePoint, the SharePoint 2017 does come with several new means and new features you did not find in the previous series of SharePoint and all.