Depending on the level of Microsoft Office purchased, the suite can consist of Word, Excel, PowerPoint, OneNote, Outlook, Access, Publisher and access to OneDrive online storage. Only Office 365 Home and Office 365 Personal have all of these programs. Office 365 Home can be installed on more devices than Personal.
Office 365 is a subscription service. More traditional versions of Microsoft Office are Office Home and Business and Office Home and Student. Each of these suites has Word, Excel, PowerPoint and OneNote. Office Home and Business also comes with Outlook. These versions of Office are available as one-time purchases for use with a single computer.