It's about as much as The Ancestry.com's Census Records.
(2006 figures) (1790 to 1930 records only)
Updated in 2006 through a one-of-a-kind project, the genealogical research site Ancestry.com added 540 million names from records in the 1790 to 1930 US Census, capturing a total of 600 terabytes (tB) of data. According to company estimates, the project took 6.6 million hours (750 person-years) to complete.
It's about as much as The Google database.
In other words, the amount of The Google database is 1 times 815.470 terabytes.(2006 figures) (web crawler data; compressed)
As of 2006, the Google search engine database contained 850 terabytes (tB) of compressed data about the web pages it had indexed while crawling the web. Each day, Google processes over one billion search requests.
It's about nine-tenths as much as a Avatar.
In other words, the amount of a Avatar is 1 times 815.470 terabytes.(a.k.a. James Cameron's Avatar, a.k.a. Avatar: An IMAX 3D experience) (production rendering data)
Using a combination of breakthrough techniques that ultimately made it the most expensive movie ever produced, the film Avatar required 1,000 terabytes of storage space for its computer rendering. According to some sources, each frame of the 166-minute movie took an average of 47 person-hours to complete.
It's about nine-tenths as much as Facebook's Photo Storage.
In other words, the amount of Facebook's Photo Storage is 1 times 815.470 terabytes.(2008 figures) (total storage)
Facebook, the popular social networking site, hosts about 1,000 terabytes of photos uploaded by its users as of 2008. Facebook users upload more than 2 terabytes (tB) of new photos to this collection every day.
It's about one-and-a-half times as much as YouTube's video database.
In other words, the amount of YouTube's video database is 0.670 times 815.470 terabytes.(2008 figures) (video data only)
YouTube's collection of user-generated and commercially-produced videos measures about 530 terabytes (tB) in total data volume. Every minute, an average of 35 hours of new video content is uploaded to YouTube.
It's about two-thirds as much as World of Warcraft.
In other words, the amount of World of Warcraft is 1.50 times 815.470 terabytes.(a.k.a. WoW) (2009 figures) (total storage for Blizzard Entertainment)
World of Warcraft, the popular massively multiplayer online role-playing game (MMORPG), uses 1,300 terabytes of data for its operations. The game's development required about 5 years and included the enhancement of a proprietary 3D graphics engine developed for the prequel of the game.
It's about one-and-four-fifths times as much as a Walmart's Mainframe.
In other words, the amount of a Walmart's Mainframe is 0.560 times 815.470 terabytes.(a.k.a. Wal-Mart, a.k.a. Wal-Mart Stores, Inc) (2004 figures)
As of 2004, Walmart had accumulated nearly 460 terabytes of data about its customers, inventory, products, and sales. According to some estimates, the total area of all Walmart stores in the United States measures 64,000,000 sq. m.