PHPMyAdmin 中的 MiB 是什么意思?
当我们要导入sql查询文件时。我们会看到最大文件大小限制,单位是MiB。
- MiB 是什么意思?
- 为什么不说MB(兆字节)?
为了更多解释我的意思,我上传截图: ,
非常感谢 古斯德
When we want to import sql query file. we will see max file limit size, and the unit is MiB.
- What is MiB mean?
- why not says MB (MegaByte)?
for more explanation what i mean, i upload the screenshot:
http://img683.imageshack.us/img683/4131/phpmyadmins.png
Many Thanks,
GusDe
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http://en.wikipedia.org/wiki/MiB
简而言之,就是 1M = 1000K 与 1M = 1024K。
http://en.wikipedia.org/wiki/MiB
In short, it's 1M = 1000K vs. 1M = 1024K.
负责此类事务的人员[编辑:在本例中为 IEC] 对“千字节”(通常)表示 1024 字节而不是 1000 字节这一事实感到困扰。为了消除任何可能的混淆,他们发明了一组新的数字“东西”前缀(kibi、mebi 等),并选择了“Ki”、“Mi”等作为它们的缩写。
The people in charge of such things [edit: in this case, the IEC] got bothered about the fact that a 'kilobyte' (normally) signifies 1024 bytes instead of 1000 bytes. To eliminate any possible confusion they invented a new set of prefixes for digital "stuff" (kibi, mebi, etc.) and picked 'Ki', "Mi", etc., as the abbreviations for them.
它的意思是mebibyte。
It means mebibyte.
MiB
是兆字节(我仍然无法使用这个词而不笑),相当于 220 字节。发明它的原因是因为
mega
是官方SI前缀,意思是一百万
。它不等于 220。话虽如此,IT 行业(无论好坏)已经选择了这些术语来表示最接近的 2 的幂,并且任何人都发现使用了像
mebibyte
和kibibyte
这样幼稚的词。 > 很可能会被认为是一个胡言乱语的白痴,并被关起来很长一段时间。除了硬盘制造商发现这是一个巧妙的技巧,让他们的磁盘看起来比实际更大之外,我认识的绝大多数技术头目都在非 SI 环境中使用 SI 前缀。
MiB
is a mebibyte (I still can't use that word without chuckling), equivalent to 220 bytes.The reason it was invented was because
mega
is an official SI prefix meaningone million
. It is not equivalent to 220.Having said that, the IT industry (for better or worse) has co-opted those terms to mean the nearest power of two, and anyone caught using childish words like
mebibyte
andkibibyte
is likely to be considered a blithering idiot, and locked away for a long time.Other than hard-disk manufacturers who found it a neat trick to make it look like their disks are bigger than they actually are, the vast majority of tech-heads I know use the SI prefixes in the non-SI context.