is one drive cloud
Abuse history. The cloud is often not backed up. If you value your data you should both store it in the cloud (any remote location) and keep a backup on your computer. One drive is both stored in the cloud and on your computer. If you delete something in the cloud it deletes it on your computer.
OneDrive (previously SkyDrive, Windows Live SkyDrive, and Windows Live Folders) is a file-hosting service operated by Microsoft as part of its suite of online services. It allows users to store files as well as other personal data like Windows settings or BitLocker recovery keys in the cloud.