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进制GB和GiB的区别
2022-06-12 08:28:00 【月来better】
Gibibyte(giga binary byte的缩写)是信息或计算机硬盘存储的一个单位,简称GiB。由来“GiB”、“KiB”、“MiB”等是于1999年由国际电工协会(IEC)拟定了"KiB"、“MiB”、“GiB"的二进制单位,专用来标示“1024进位”的数据大小。而后,这一标注规范又于2008年并入国际标准化组织(ISO)文件。具体的来说,1GiB=1024MiB,1MiB=1024KiB。他们与GB、MB、KB是不一样的,GB等则是1000进位的数据单位。
根据Wikipedia的注译,GB(gigabyte)是十进制的容量单位,1GB等于1,000,000,000 Bytes。而二进制的容量单位则是用GiB(Gibibyte)就是Giga Binary Byte,相等于1,073,741,824 Bytes。
所以一个160GB的硬盘其实只有149.0116119 GiB,厂商并没有欺骗顾客,更由于无法精确控制盘面的容量,大多数时候都会提供多余的空间以确保品质。
以下示范如何换算成GiB:
1GiB=(102410241024)B=1073741824B
1GB=(100010001000)B=1000000000B
1GiB/1GB=1073741824/1000000000=1.073741824
例如:
8TiB=8192GiB=8192*1.073741824=8796.093022208GB
8796.093022208GB/1.073741824=8192GiB
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