Microsoft's flagship suite of desktop and mobile business applications for Windows, Mac, iOS and Android.  Debuting in 1988 for Windows, all versions of the suite include Word (word processing), Excel (spreadsheet) and PowerPoint (presentations).  Additional applications are included in Home and Business plans available as annual subscriptions (see 
Microsoft 365).  See 
Microsoft Word, 
Microsoft Access, 
Excel, 
PowerPoint, 
Outlook, 
OneNote, 
Microsoft Office versions and 
application suite.