Dropbox

Web-based file hosting service operated by Dropbox, Inc. that uses cloud computing to enable users to store and share files and folders with others across the Internet using file synchronization. It was founded in 2007 by Drew Houston and ArashFerdowsi.


Functionality
The Dropbox client enables users to drop any file into a designated folder that is then synced with Dropbox's Internet service and to any other of the user's computers and devices with the Dropbox client. Users may also upload files manually through a web browser. Through these usages, it can be an alternative to couriering physical removable media, and other traditional forms of file transfer, such as FTP and e-mail attachments.




 Dropbox's version control also helps users know the history of a file they may be currently working on, enabling more than one person to edit and re-post files without complications of losing its previous form. The version history is limited to 30 days.