Difference between binary GB and gib

Gibibyte（giga binary byte Abbreviation ） A unit of information or computer hard disk storage , abbreviation GiB. origin “GiB”、“KiB”、“MiB” Wait for 1999 By the International Electrotechnical Association （IEC） Made up "KiB"、“MiB”、“GiB" Binary units of , Special to mark “1024 carry ” The data size of . Then , This marking specification was applied to 2008 It was incorporated into the international organization for standardization （ISO） file . Specifically ,1GiB=1024MiB,1MiB=1024KiB. They and GB、MB、KB It's different ,GB And so on 1000 The unit of data carried .

according to Wikipedia Annotation translation of ,GB（gigabyte） Is a decimal unit of capacity ,1GB be equal to 1,000,000,000 Bytes. The binary capacity unit is GiB（Gibibyte） Namely Giga Binary Byte, Equivalent to 1,073,741,824 Bytes.

So a 160GB Your hard drive is actually only 149.0116119 GiB, The manufacturer did not deceive the customer , More because the capacity of the disk surface cannot be accurately controlled , Most of the time, extra space will be provided to ensure quality .

The following example shows how to convert to GiB：

1GiB=（102410241024）B=1073741824B

1GB=（100010001000）B=1000000000B

1GiB/1GB=1073741824/1000000000=1.073741824

for example ：

8TiB=8192GiB=8192*1.073741824=8796.093022208GB

8796.093022208GB/1.073741824=8192GiB