On April 12, 2013, Fox News published a story indicating that the new NSA Data Center south of Salt Lake City, UT, will be able to contain up to 5 zettabytes of data, "according to some reports".Randall Munroe criticised these news reports, pointing to this number being equivalent to about 600 times the annual production capacity of the hard drive industry.
As of April 2012[update], no storage system had achieved one zettabyte of information. The combined space of all computer hard drives in the world was estimated at approximately 160 exabytes in 2006. As of 2009, the entire World Wide Web was estimated to contain close to 500 exabytes. This is one half zettabyte. This has increased rapidly however, as Seagate Technology reported selling 330 exabytes worth of hard drives during the 2011 Fiscal Year.
The world's technological capacity to receive information through one-way broadcast networks was 0.432 zettabytes of (optimally compressed) information in 1986, 0.715 in 1993, 1.2 in 2000, and 1.9 (optimally compressed) zettabytes in 2007 (this is the informational equivalent to every person on earth receiving 174 newspapers per day).
Mark Liberman calculated the storage requirements for all human speech ever spoken at 42 zettabytes if digitized as 16 kHz 16-bit audio. This was done in response to a popular expression that states "all words ever spoken by human beings" could be stored in approximately 5 exabytes of data (see exabyte for details). Liberman did freely confess that "maybe the authors [of the exabyte estimate] were thinking about text".
Research from the University of Southern California reports that in 2007, humankind successfully sent 1.9 zettabytes of information through broadcast technology such as televisions and GPS.