This is because on most operating systems, a char maps well to one byte.

这是因为在大多数操作系统上，一个字符能很好地映射成一个字节。

youdao

However, the length of "a" is one byte and that of "Latin capital letter a with ring above" is two bytes.

但是，“A”的长度是一个字节而“上面带圈的大写拉丁字母A”的长度则是两个字节。

youdao

The basic idea behind WBXML is that by taking advantage of foreknowledge of the DTDs, you can minimize the tags to one byte.

WBXML的基本原理在于利用DTD的先验知识，您可以将标签缩小到一个字节。

youdao

So a char is one byte, which is bits -- how many?

所以char类型占了1个字节，--那是多少位？

哈佛公开课 - 计算机科学课程节选

The key to cracking that nut is apparently the new thermal assisted optical element Fujitsu's developed, allowing for an ultra-tiny sub-hundred nanometer optical spot size, which in turn should enable recording on the one terabit (not byte, let's not get crazy here) per square inch level.

ENGADGET: Fujitsu building a bigger, smaller hard drive