In Roman numerals, C stands for the number 100. This is based on the Latin word centrum, which means 100.. As of 2014, Roman numerals are still occasionally used, such as seen in the British monarch Queen Elizabeth II.
A Microsoft account is what you use for almost everything you do with Microsoft devices and services. Itâs an email address and password that you use to sign in to Skype, Outlook.com, OneDrive, Windows Phone, and Xbox LIVE â and it means your files, photos, contacts and settings can follow you to any device.
1 Set up or sign in to an account. 2  If youâve never had a Microsoft account, choose Sign Up on the next page. 3  If you use Hotmail, Outlook.com, Messenger, or other Microsoft services, you already have a Microsoft account. 4  Sign in on the next page with that email address and password.