# How much is 2 terabytes?

It's about half as much as Watson
The amount of Watson is about 4 terabytes.
(data store only)
Watson, the IBM supercomputer famous for competing against humans on the televised trivia game show Jeopardy!, utilizes 4 terabytes of variously-structured data to formulate answers. While "thinking", Watson processes about 0.490 terabytes of data per second.
It's about three-tenths as much as a Gap, Inc. Customer Database
The amount of a Gap, Inc. Customer Database is about 7 terabytes.
(a.k.a. The GAP Companies, a.k.a. Gap) (2012 figures)
The GAP Inc., the corporate parent of GAP store, Old Navy, and Banana Republic, has accumulated over 7 terabytes of data on almost a billion customers. The GAP, Inc remains the largest apparel retailer in the United States and was the largest in the world from the mid-1990s until about 2008.
It's about thirteen times as much as an iPod
The amount of an iPod is about 0.1560 terabytes.
(a.k.a. Apple iPod) (2010 figures; for iPod classic, sixth generation)
A sixth-generation, iPod classic MP3 player offers a storage capacity of 0.1560 terabytes. Data is stored in the unit's hard drive, a 5,400 RPM SATA drive, which measures about 30 sq. cm (5 sq. in)
It's about one-twentieth as much as The Amazon.com's databases
The amount of The Amazon.com's databases is about 42.31540 terabytes.
(largest databases only; 2005 figures)
Amazon.com maintains information on the millions of items sold on it's e-Commerce website and the websites of its affiliate companies, as well as information on customer orders and browsing history, and excerpts from nearly a quarter-billion books in databases totaling an estimated 43.331 terabytes (tB) of data. Amazon.com receives over 615 million visits to its US website each year.
(2006 figures) (raw imagery and indexes storage)
As of 2006, Google was storing 70.5 terabytes (tB) of raw image and index data for its satellite photo and virtual globe application, Google Earth. The application offers high resolution satellite imagery of 60% of the populated areas of the world, according to 2010 estimates.
It's about forty times as much as Wikipedia
The amount of Wikipedia is about 0.051 terabytes.
(2009 figures) (all languages)
As of 2009, Wikipedia held 0.052 terabytes of publicly written and edited encyclopedia articles on 14.5 million subjects as well as associated commentary and discussion. Wikipedia is among the ten most popular websites on the Internet and the only non-profit entity in that group.
It's about 40 times as much as a Blu-ray Disc
The amount of a Blu-ray Disc is about 0.049 terabytes.
(a.k.a. BD) (dual-layer; Blu-ray disc)
A typical Blu-ray disc will hold 0.049 terabytes of data. The increase in capacity versus a standard DVD is possible because of the smaller wavelength of blue light — 405 nanometers instead of 650 nanometers for the red laser light used in a DVD.
It's about one-fiftieth as much as The LHC Data Generated per Second
The amount of The LHC Data Generated per Second is about 100 terabytes.
(a.k.a. Large Hadron Collider) (2008 figures)
Capturing millions of measurements per second on millions of subatomic particles, the Large Hadron Collider (LHC) at the European Organization for Nuclear Research (CERN) facility in Geneva generates 100 terabytes (tB) of data every second. Data collection arrays are placed throughout the LHC's 8.6 km (5.3 mi) circular track.
It's about one-sixty-fifth as much as The Hubble Telescope
The amount of The Hubble Telescope is about 120 terabytes.
(a.k.a. Hubble Space Telescope, a.k.a. HST) (2008 figures)
Between its launch in 1990 and 2008, the Hubble Space Telescope gathered 120 terabytes (tB) of images and other data about astronomical phenomena. Last upgraded during a service mission in 1999, the onboard computer of the Hubble Telescope has just 0.00000190 terabytes of operating memory (RAM) — less than most smartphones.
It's about one-seventieth as much as Despicable Me
The amount of Despicable Me is about 142 terabytes.
(2010) (Production data)
The 2010 digitally-animated film Despicable Me was developed by Illumination Entertainment and Mac Guff Ligne and used 142 terabytes (tB) of data. The film had a running time of 95 minutes.
It's about one-seventy-fifth as much as The IRS Compliance Database
The amount of The IRS Compliance Database is about 150 terabytes.
(a.k.a. Internal Revenue Service) (2006 figures)
The United States Internal Revenue Service's compliance database holds more than 150 terabytes (tB) of data on tax returns and other records. Each year of tax records occupies between 15 and 20 terabytes (tB).
It's about one-one-hundredth as much as Pandora
The amount of Pandora is about 250 terabytes.
Pandora, the online radio and song recommendation service, stores 250 terabytes (gB) of music. Its music recommendation service categorizes each song in its library using 400 attributes and 2,000 attribute combinations.
It's about one-two-hundred-fiftieth as much as a Walmart's Mainframe
The amount of a Walmart's Mainframe is about 460 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.