php - PHPMyAdmin 中的 MiB 是什么意思？

Question

当我们要导入sql查询文件时。我们将看到最大文件大小限制，单位是 MiB。

1. MiB 是什么意思？
2. 为什么不说 MB(兆字节)？

为了进一步解释我的意思，我上传截图: http://img683.imageshack.us/img683/4131/phpmyadmins.png

非常感谢，古德

Answer 1

http://en.wikipedia.org/wiki/MiB

The mebibyte is a multiple of the unit byte for digital information. The binary prefix mebi means 220, therefore 1 mebibyte is 1048576bytes. The unit symbol for the mebibyte is MiB.[1] The unit was established by the International Electrotechnical Commission (IEC) in 2000 and has been accepted for use by all major standards organizations. It was designed to replace the megabyte used in some computer science contexts to mean 220 bytes, which is similar to but conflicts with the SI definition of the prefix mega (106).

简而言之，1M = 1000K 与 1M = 1024K。