V2EX gibibyte

Gibibyte

释义 Definition

gibibyte(GiB):一种二进制数据容量单位,等于 2 字节 = 1,073,741,824 bytes。常用于计算机内存、操作系统显示的容量等(与十进制的 gigabyte, GB = 10 字节不同)。另:也可泛指“约十亿字节级别”的容量,但严格写法应为 GiB。

发音 Pronunciation (IPA)

/dbbat/

例句 Examples

My laptop has 16 gibibytes of RAM.
我的笔记本电脑有 16 GiB 的内存。

The file system report shows 238 GiB free, even though the drive is marketed as 256 GB, because the two units are calculated differently.
文件系统报告显示还剩 238 GiB 可用空间,尽管硬盘标称为 256 GB,这是因为两种单位的计算方式不同。

词源 Etymology

gibibyte 是由 **gibi-**(表示 2 的二进制前缀)+ byte(字节)构成的合成词。该系列二进制前缀(如 **kibi-, mebi-, gibi-**)由国际电工委员会(IEC)提出,用于避免 KB/MB/GB 在“十进制/二进制”两种用法中造成的混淆。

相关词 Related Words

文献与作品 Literary / Notable Works

  • IEC 60027-2(标准文件):给出并推广 kibi/mebi/gibi 等二进制前缀的使用规范。
  • ISO/IEC 80000-13(标准文件):进一步规范信息技术中的量与单位,包括 GiB 的写法与含义。
  • Linux man-pages / GNU Coreutils 文档(技术文档集):在磁盘、内存与单位说明中常出现 GiBGB 的区分。
  • FreeBSD Handbook(系统手册):在存储与文件系统相关章节中常用 GiB 表达二进制容量。
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