Microsoft Office is a suite of desktop productivity applications that is designed specifically to be used for office or business use. It is a proprietary is mainly consists of Word , Excel, PowerPoint, Access, One Note, Outlook and Publisher applications. these are: Access, Excel, Info Path, One Note, OutlookPowerPoint, Project, Lync, Publisher, Visio and Word. All have been reworked with a Metro-style user interface. In addition, Microsoft has developed native Windows 8 Metro-style apps for One Note and Lync.

Microsoft office:a word processor included in Microsoft Office and some editions of the now-discontinued Microsoft Works. The first version of Word, released in the autumn of 1983, was for the MS-DOS operating system and introduced the computer mouse to more users. Following the precedents of Lisa Write and  ,Mac Word for Macintosh attempted to add closer  features into its package. when we write something then we use foe Micro soft office micro soft office use in business ,universities ,college,etc 

Micro soft Excel; a spreadsheet editor that originally competed with the dominant Lotus 1-2-3

Microsoft Power point a presentation program used to create slideshows composed of text, graphics, and other objects, which can be displayed on-screen and shown by the presenter or printed out on transparencies or slides. Microsoft One Note: a note taking program that gathers handwritten or typed notes, drawings, screen clippings and audio commentaries. Notes can be shared with other One Note users over the Internet or a network.However, One Note was included in all Microsoft Office offerings. One Note is also available as a web app on Office on the web, a free mium (and later freeware) Windows desktop app, a mobile app for Windows Phone, iOS, Android, and Symbian, and a Metro-style app for Windows 8 or later.

Microsoft Outlook (not to be confused with Outlook Express, or Outlook on the web): a personal information manager that replaces Windows Messaging, Microsoft Mail, and Schedule+ starting in Office 97; it includes an e-mail client, calendar, task manager and address book..Microsoft One Drive: A file hosting service that allows users to sync files and later access them from a web browser or mobile device. Skype for Business: an integrated communications client for conferences and meetings in real-time, it is the only Microsoft Office desktop app that is neither useful without a proper network infrastructure nor has the “Microsoft” prefix in its name. Microsoft Teams: a platform that combines workplace chat, meetings, notes, and attachments. Microsoft announced that Teams would eventually replace Skype for Business.