Definition of "petabyte"

As we moved along that progression, we went from the folder analogy to the file cabinet analogy to the library analogy to — well, at petabytes we ran out of organizational analogies.

2008 June 23, Chris Anderson, “The End of Theory: The Data Deluge Makes the Scientific Method Obsolete”, in Wired‎

The Hadron Collider has gone from producing 320 terabytes of data a week to a petabyte a second. In short, it has been said that the total amount of data created worldwide in 2011 was about one zetabyte[sic] (or 1,000,000 petabytes) and that this figure will increase by 50%–60% in each subsequent year.

2017, Jeffrey R. Di Leo, Higher Education under Late Capitalism, Springer, page 82