Editing Data storage (section)

==Global capacity, digitization, and trends==
A 2003 [[UC Berkeley]] report estimated that about five [[exabyte]]s of new information were produced in 2002 and that 92% of this data was stored on hard disk drives. This was about twice the data produced in 2000. <ref>{{Cite web |title=Amount of new information doubled in last three years, UC Berkeley study finds|first=Kathleen|last=Maclay|date=28 October 2003|url=https://www.berkeley.edu/news/media/releases/2003/10/28_information.shtml |access-date=2022-09-07 |website=[[University of California, Berkeley]]}}</ref> The amount of data transmitted over [[telecommunications system]]s in 2002 was nearly 18 exabytes—three and a half times more than was recorded on non-volatile storage. Telephone calls constituted 98% of the telecommunicated information in 2002. The researchers' highest estimate for the growth rate of newly stored information (uncompressed) was more than 30% per year.

In a more limited study, the [[International Data Corporation]] estimated that the total amount of digital data in 2007 was 281 exabytes and that the total amount of digital data produced exceeded the global storage capacity for the first time.<ref>{{cite web|first=Adam|last=Theirer|title=IDC's "Diverse & Exploding Digital Universe" report|date=14 March 2008|url=https://techliberation.com/2008/03/14/idcs-diverse-exploding-digital-universe-report/|access-date=2008-03-14}}</ref>

A 2011 ''[[Science Magazine]]'' article estimated that the year 2002 was the beginning of the digital age for information storage: an age in which more information is stored on digital storage devices than on analog storage devices.<ref name="HilbertLopez2011">{{cite journal|last1=Hilbert|first1=Martin|last2=López|first2=Priscila|year=2011|title=The World's Technological Capacity to Store, Communicate, and Compute Information|journal=[[Science (journal)|Science]]|volume=332|issue=6025|pages=60–65|bibcode=2011Sci...332...60H|doi=10.1126/science.1200970|pmid=21310967|s2cid=206531385|url=http://www.martinhilbert.net/WorldInfoCapacity.html/|doi-access=free|url-access=subscription}}</ref> In 1986, approximately 1% of the world's capacity to store information was in digital format; this grew to 3% by 1993, to 25% by 2000, and to 97% by 2007. These figures correspond to less than three compressed [[exabytes]] in 1986, and 295 [[Data compression|compressed]] exabytes in 2007.<ref name="HilbertLopez2011"/> The quantity of digital storage doubled roughly every three years.<ref name="Hilbertvideo2011">{{cite web|first=Martin|last=Hilbert|url=http://ideas.economist.com/video/giant-sifting-sound-0|title=Video animation on The World's Technological Capacity to Store, Communicate, and Compute Information from 1986 to 2010|date=15 June 2011| archiveurl=https://web.archive.org/web/20120118072720/http://ideas.economist.com/video/giant-sifting-sound-0|archivedate=2012-01-18}}</ref>

{{as of|2023|alt=It is estimated that around 120 zettabytes of data will be generated in 2023}}, an increase of 60x from 2010, and that it will increase to 181 zettabytes generated in 2025.<ref>{{cite web
 |url=https://explodingtopics.com/blog/data-generated-per-day
 |title=Amount of Data Created Daily (2023) |last=Duarte |first=Fabio |date=April 3, 2023 |access-date=August 28, 2023}}</ref>