A petabyte (derived from the SI prefix peta- ) is a unit of information or computer storage equal to one quadrillion bytes, or 1000 terabytes. It is commonly abbreviated PB. When used with byte multiples, the prefix may indicate a power of either 1000 or 1024, so the exact number may be either:
* 1,000,000,000,000,000 bytes — 10005, or 1015, or * 1,125,899,906,842,624 bytes — 10245, or 250.
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Date: 2008-09-20 03:25 am (UTC)A petabyte (derived from the SI prefix peta- ) is a unit of information or computer storage equal to one quadrillion bytes, or 1000 terabytes. It is commonly abbreviated PB. When used with byte multiples, the prefix may indicate a power of either 1000 or 1024, so the exact number may be either:
* 1,000,000,000,000,000 bytes — 10005, or 1015, or
* 1,125,899,906,842,624 bytes — 10245, or 250.