Exabyte

An exabyte (EB) is a unit of information or data storage equal to 10^18 bytes in the decimal system. Its binary equivalent is the exbibyte (EiB), which equals 2^60 bytes, about 1.15×10^18.

In decimal terms, 1 EB equals 1,000,000,000,000,000,000 bytes. It also corresponds to 1,000,000 gigabytes (one billion GB) and 1,000,000 terabytes (one million TB).

Usage: The exabyte is used to describe very large data storage capacities, such as data-center storage, cloud storage infrastructure, and global data flows in Internet-scale systems.

Relationship to other units: The next higher decimal unit is the zettabyte (ZB) = 10^21 bytes; the binary equivalent of EB is EiB; the standard for binary prefixes is maintained by the IEC.

Notes: In practice, EB is typically used to denote 10^18 bytes, while EiB is used for 2^60 bytes to avoid ambiguity between decimal and binary measurements. 1 EB is a substantial scale of data, amounting to about one billion gigabytes.