Microsoft Office is an office suite of applications, servers, and services developed by Microsoft. It was first announced by Bill Gates on August 1, 1988, at COMDEX in Las Vegas. The first version of Office contained Microsoft Word, Microsoft Excel and Microsoft PowerPoint.
On 10 July 2012, Softpedia reported that Office is used by over a billion people worldwide.
The desktop version of Office is available for Windows and OS X. A touch-optimised version of Microsoft Office is available pre-installed on Windows RT tablets. A mobile version of Office, Office Mobile, is available for free on Windows Phone, iOS and Android. A web-based version of Office, Office Online, is also available. Microsoft has stated that it plans to create a version of Office for “other popular platforms” as well.
The installation process is described below: