Most people forget, including myself, that Microsoft is not just responsible for Windows, they are also the company who make Skype, Office, Outlook, XBOX and SkyDrive. All popular services/products which have millions of users.
Here are some of the key figures from the website:
- Microsoft have sold over 100 million Windows 8 licences
- 76 million XBOX consoles have been sold
- Outlook.com has over 400 million users
- 250 million apps have been downloaded from the Windows Store (this is surprising because it means that every person has only downloaded 2 and a half apps on average)
Check out Microsoft by the Numbers yourself: http://www.microsoft.com/en-us/news/bythenumbers/index.html