Definition of "zettabyte"

Cerberus Scientist: I'm sorry, sir. None of Normandy's surveillance feeds have been responding since Shepard went rogue.Illusive Man: I want it back. Retry the remote lockdown protocols.Cerberus Scientist: After our last attempt, EDI flooded our server with seven zettabytes of explicit images. I think she was making a joke.

2012, BioWare, Mass Effect 3 (Science Fiction), Redwood City: Electronic Arts, PC, scene: Cronos Station

Conservative estimates put data produced in 2020 alone at 44 zettabytes.

2015 January 2, Fiona Graham, “Look-ahead 2015: Fly into the future and other predictions”, in BBC News‎

For such quantities, it is necessary to introduce a further unit: the zettabyte which corresponds to 1000 exabytes. The International Data Corporation (IDC) predicts the world's data will grow to 175 zettabytes in 2025.

2021, Giuseppe Arbia, Statistics, New Empiricism and Society in the Era of Big Data, Springer Nature, page 5