V2EX megabyte

Megabyte

定义 Definition

megabyte(MB)兆字节,常用的数据存储/传输单位。通常 1 MB = 1,000,000 字节(十进制,常见于硬盘、网络),在计算机内存等语境中也常指 1 MiB = 1,048,576 字节(二进制,约等于 1024 KB)。另有其他含义,但此处以最常见的计量单位为主。

发音 Pronunciation

/mbat/

例句 Examples

The photo is about two megabytes.
这张照片大约有两兆字节。

Even after compression, the dataset still takes hundreds of megabytes, so uploading it over a slow connection can take a long time.
即使压缩后,这个数据集仍然占用数百兆字节,所以在慢速网络下上传可能要花很久。

词源 Etymology

megabyte 由 **mega-**(表示“一百万”的前缀,源自希腊语 megas,意为“巨大”)和 byte(字节)组成,字面意思是“百万字节”。随着计算机发展,因二进制计量习惯,出现了十进制与二进制两种常见用法。

相关词 Related Words

文学作品中的用例 Literary Works

  • The Cuckoo’s Egg(Clifford Stoll):以网络安全与早期互联网追踪为主题,书中涉及文件大小、数据与存储等技术描述,常出现以字节/兆字节计的数据量表达。
  • Cryptonomicon(Neal Stephenson):包含大量计算与密码学相关内容,涉及数据、存储与传输的讨论,常用到包括 MB 在内的计量单位。
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