Online cloud storage this is the design of an online cloud app. Cloud online storage works in a simple way. Instead of saving your files onto your PC, or backing up to an external hard drive, you save them online on the cloud. This lets you access them from any computer by logging into your online cloud storage account. If you update a file from one computer, you’ll see the changes on another PC. No matter how much you love your laptop, nothing is as important as the data you have saved on its hard drive. If you lose or damage your laptop, your online storage potentially loses thousands of digital photos, important files, or your entire music collection.