Cloud computing is a computing term or metaphor that evolved in the late 1990s, based on utility and consumption of computer resources. Cloud computing involves application systems which are executed within the cloud and operated through internet enabled devices. How Cloud Computing Works". ThinkFree Office Online. Online Storage & Online Backup. 4share.html - 4shared.com - online file sharing and storage - download. SugarSync. Online File Storage & Backup from humyo.com. Mougg - Your Music in the Cloud.