But we know already from week zero that computers ultimately represent all information with numbers, and if they want to represent letters inside memory, well what do they do or what do they use?

但是自从上周我们已经知道,计算机最终是用数字来表示所有的,信息，如果它们要描绘,在内存中的字母，它们该怎么做，用什么方式呢？

哈佛公开课 - 计算机科学课程节选

Every file or program that you see here in this packet is alphabetically listed.

你们看到的所有的文件或程序,都会在这里按字母表顺序一一列出。

哈佛公开课 - 计算机科学课程节选

For example, the teaching fellows will divide all the concept sheets in week one, and one teaching fellow will grade part of the alphabet and another will grade another part of the alphabet.

助教们在第一周将所有的论文,按字母顺序分类,一位助教评定一部分,另一位助教评定另一部分

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

You can brute force it and unfortunately, the so-called Caesar cipher is not very secure because if you assume, for our purposes in English alphabet with 26 characters, say all lowercase for all uppercase, my God, you only have to try like 24, 25, 26 possible rotations until you can figure out what his secret message is.

你可以强行解密但是不幸地是，所谓的凯撒密码不是很安全的,因为如果假设，对于我们的26个字符的字母表,指明所有的小写为大写，我的天，你只要试24，25次，26次就可以解答出,密文的内容。

哈佛公开课 - 计算机科学课程节选

It's in a file called swap.C. Everything should be alphabetical so it should be toward the end of this week's packet and notice that it's almost identical except for a couple of syntax changes.

在一个叫做swap。c的文件中，对于这周末的数据包来说,所有的东西都是字母,请注意,除了几个语法改变,它几乎是一样的。

哈佛公开课 - 计算机科学课程节选