Exabyte

An exabyte (EB) is a unit of measurement for data equal to 1000 petabytes (PB) or a million trillion (1,000,000,000,000,000,000) bytes. An exabyte is large enough that it would take about 10,000 to 100,000 home computers to store this amount of data.
One thousand exabytes make one zettabyte.