By using various coding techniques, group of bits can be made to represent not only binary number but also other discrete symbols, such as decimal digits or letter of alphabet.
通过应用各种编码技术，字位的组合不但可以用来表示二进制数，还可以表示其他离散符号，比如十进制数字和字母表上的字母等。
This has allowed them to be much faster than magnetic memory, in which the binary digits (" bits ") are represented by magnetically polarised regions rather than electric charges.
这一特性使它比磁存储器的速度更快，因磁存储器中的二进制数字(比特)是由磁极化区而不是由电荷表示的。
The Shannon entropy of a message is the number of binary digits, or bits, needed to encode it.
一个讯息中的夏侬熵就是将此讯息编码所需的位元数目。
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