Jia Shi
Yidi Zhang
Nan Song
Ly Le
INTRODUCTION
Along with the development speed of technology, the amount of data passing by or consumed by people around the world keeps growing rapidly. The storage devices seem to unable for storing growing data amount. In addition, maintenance and back-up of data are needed just in case of accident. To meet the needs mentioned above, the cloud computing is developed especially cloud storage which have become a necessary data storage for everyone recently. There are four competitive huge cloud storages in the IT industry – Google Drive, SkyDive, ICoud, Dropbox.
Google Drive is a file storage and synchronization service provided by Google, released on April 24, 2012, which enables user cloud storage, file sharing and collaborative editing. Google Drive is now the home of Google Docs, a suite of productivity applications, that offer collaborative editing on documents, spreadsheets, presentations, and more.
SkyDrive (officially Microsoft SkyDrive, previously Windows Live SkyDrive and Windows Live Folders) is a file hosting service that allows users to upload and sync files to a cloud storage and then access them from a Web browser or their local device. It is part of the Windows Live range of online services and allows users to keep the files private, share them with contacts, or make the files public. Publicly shared files do not require a Microsoft account to access.
Dropbox is a file hosting service operated by Dropbox, Inc., that offers cloud storage, file synchronization, and client software. Dropbox allows users to create a special folder on each of their computers, which Dropbox then synchronizes so that it appears to be the same folder (with the same contents) regardless of which computer is used to view it. Files placed in this folder also are accessible through a website and mobile phone applications
iCloud is a cloud storage and cloud computing service