PHPMyAdmin 中的 MiB 是什么意思?

发布于 2024-10-15 12:31:10 字数 146 浏览 1 评论 0原文

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。

  1. MiB 是什么意思?
  2. 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.

  1. What is MiB mean?
  2. 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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樱花坊 2024-10-22 12:31:10

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

兆字节是数字信息单位字节的倍数。二进制前缀 mebi 表示 220,因此 1 mebibyte 为 1048576 字节。兆字节的单位符号是 MiB。[1]该单位由国际电工委员会(IEC)于2000年建立,并已被所有主要标准组织接受使用。它旨在将某些计算机科学环境中使用的兆字节替换为 220 字节,这与前缀兆 (106) 的 SI 定义类似,但与之冲突。

简而言之,就是 1M = 1000K 与 1M = 1024K。

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).

In short, it's 1M = 1000K vs. 1M = 1024K.

小红帽 2024-10-22 12:31:10
  1. 1 MiB (mebibyte) 是 1048576 (1024^2) 字节。
  2. 因为有些人对 SI 前缀(1000 的幂)的含义很势利,并且不喜欢人们将它们用于 1024 的幂
  1. One MiB (mebibyte) is 1048576 (1024^2) bytes.
  2. Because some people are snobby about the meanings of SI prefixes (powers of 1000) and don't like it when people use them for powers of 1024
花开半夏魅人心 2024-10-22 12:31:10

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.

幸福丶如此 2024-10-22 12:31:10

它的意思是mebibyte

1 兆字节为 1,048,576 字节

It means mebibyte.

1 mebibyte is 1,048,576 bytes

渡你暖光 2024-10-22 12:31:10

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 mebibytekibibyte 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 meaning one 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 and kibibyte 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.

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