What is OneDrive for Business in SharePoint 2013?

OneDrive for Business is a personal cloud library for business and allows you to store, synchronise and share files between SharePoint Server 2013 and a client workstation. It is a part of SharePoint Server 2013 or SharePoint Online (Office 365).

With OneDrive for Business you can update and share your files from anywhere and work on Office documents with others at the same time.