A brontobyte is a unit of data that represent a very large number of bytes. It is often compared to approximately 1000 yottabytes; the specific number being 1,000,000,000,000,000,000,000,000,000 (1027) bytes.

Hellabyte, Measurements, Ronna

In 2022, SI (Systems of Units) announced the ronna measurement as the official prefix.

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