Google Drive (formerly Google Docs) is a file storage and synchronization service created by Google. It allows users to store files in the cloud, synchronize files across devices, and share files.
When you use a synchronizing storage product, like Google Drive, any file you put in the drive, and anything you change that's stored in the drive, is automatically updated not just in the cloud but on all the other devices that you have connected to the Drive.
So you can start working on a file on one computer, close it, and then open it on a second computer, and what you'll see is the version you closed on the first one.
Within file size and space limits, anything you can store on your hard drive can also be stored in a cloud drive. You can also move entire folders in your Google Drive.
There are several ways to use Google Drive. For the most flexibility, get the app for both your computer and mobile device.
OPTION 1: Using a browser, go to drive.google.com.
OPTION 2: Download the app for Android or iPhone/iPad.
OPTION 3: Download the desktop app to automatically sync files from your computer.
For more info, see CNET.com's The Google Drive FAQ and CloudWards.net's A Step-by-Step No-Nonsense Guide on How Google Drive Works.
Of interest, for fans of Google Drive, the headlines recently seemed alarming: "Google Drive shutting down in March!" "Google Drive is dead!"
Although Google does plan to make a change early next year, the Drive service itself isn't going anywhere. Rather, it's the Google Drive app that's being terminated, and that's only because it's being replaced. Find out what you need to know about the future of Drive at CNET.