How it works
iCloud Drive works by connecting your Mac, iOS device or even your PC across a wired, Wi-Fi or cellular internet connection to Apple’s data centres, all the while using your Apple ID for authentication. Devices running the latest versions of OS X or Windows 7 or above can access iCloud Drive, a virtual drive onto which you can drag and drop any kind of files or folders to store them. Some of Apple’s own apps such as TextEdit, Numbers, Pages and Keynote can also store documents and you can work from them directly from iCloud. OS X and iOS devices can also use iCloud for backup, restoring settings, contacts, photo sharing and iCloud keychain, which, rather handily, allows you to store passwords across all your devices to make it easy to log into websites.