It's about nine-tenths as much as The Internet
In other words, 0.00000400 yottabytes is 0.9 times the amount of The Internet, and the amount of The Internet is 1 times that amount.(2005 figures) (estimated)
Although the Internet is continuously changing, a 2005 estimate by Google CEO Eric Schmidt was that the total amount of data on the Internet would measure about 0.00000400 yottabytes. An estimated 1 trillion web pages are published on the Internet, excluding photos, videos, and music content.
It's about 70 times as much as The Books in the Library of Congress
In other words, 0.00000400 yottabytes is 70 times the amount of The Books in the Library of Congress, and the amount of The Books in the Library of Congress is 0.0 times that amount.(2009 figures) (digitized entire collection)
The total collection of books, photographs, and other media housed by the United States Library of Congress would occupy about 0.0000000600 yottabytes if fully digitized. The collection contains a total of 142,544,498 items as of 2009.
It's about 90 times as much as Mozy
In other words, 0.00000400 yottabytes is 90 times the amount of Mozy, and the amount of Mozy is 0.0 times that amount.(2009 figures) (total file storage)
Mozy, the online data backup service, stores about 0.0000000500 yottabytes of data backed up its users. Founded in 2005, Mozy's customer base has grown to 1 million personal and 60,000 business subscribers in just 5 years.
It's about 900 times as much as The Letters Delivered by the US Postal Service in 2010
In other words, 0.00000400 yottabytes is 900 times the amount of The Letters Delivered by the US Postal Service in 2010, and the amount of The Letters Delivered by the US Postal Service in 2010 is 0.00 times that amount.(2010 figures)
All letters delivered by the United States Postal Service in 2010 will equate to 0.00000000500 yottabytes of data if stored digitally. In delivering the mail, the Postal Service fleet travels a total of 1.25 billion miles annually.
It's about 1,500 times as much as Netflix's Watch Instantly catalog
In other words, 0.00000400 yottabytes is 1,370 times the amount of Netflix's Watch Instantly catalog, and the amount of Netflix's Watch Instantly catalog is 0.0007 times that amount.(May, 2013 figures)
The uncompressed source copies of all the movies available for instant viewing on Netflix total 0.000000002920 yottabytes. According to estimates, videos streamed from Netflix account for about 29% of all Internet traffic
It's about 1,500 times as much as a Human Brain
In other words, 0.00000400 yottabytes is 1,700 times the amount of a Human Brain, and the amount of a Human Brain is 0.0006 times that amount.According to Northwestern University psychology professor Paul Reber, the capacity of the human brain is a theoretical 0.00000000230 yottabytes. Each lobe of the brain consists of folded neural tissue with a total area, if unfolded, of about 0.24 sq. m.
It's about 1,500 times as much as The US Census Bureau
In other words, 0.00000400 yottabytes is 1,700 times the amount of The US Census Bureau, and the amount of The US Census Bureau is 0.0006 times that amount.(a.k.a. United States Census Bureau, a.k.a. Bureau of the Census) (2010 figures) (total active data)
The United States Census Bureau administers 0.00000000230 yottabytes of demographic and population data gathered through the decennial census and other surveys. The Census Bureau makes the results of each census public 72 years after they are gathered.