zettabyte

American

[zet-uh-bahyt] / ˈzɛt əˌbaɪt /

noun

Computers.

2 70 bytes; 1024 exabyte.
(loosely) 10 21 or one sextillion bytes; 1000 exabytes. ZB

zettabyte British

/ ˈzɛtəˌbaɪt /

noun

computing 10 ²¹ or 2 ⁷⁰ bytes

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of zettabyte

First recorded in 1990–95; zetta- + byte

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Terms such as a "zettabyte" — an amount of storage capacity that has 21 zeros in it — were uttered.

From Chicago Tribune • Apr. 14, 2013

One zettabyte is the equivalent of the information on 250 billion DVDs, according to Visual Networking Index.

From BusinessWeek • Sep. 7, 2011

Fast forward three years and we are creating 1.2 zettabytes, with one zettabyte equal to 1,024 exabytes.

From Forbes • Jul. 18, 2011

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023