The reason I'm showing you this is it that this is a gain, a common trade off in computer science.

我向你们说明这个,是因为是这个计算机科学中。

麻省理工公开课 - 计算机科学及编程导论课程节选

You might remember vaguely logarithms from high school math and such but what this suggests for us , the computer scientists, is that this is certainly a smarter, a faster algorithm.

你可能还会依稀记得,高中数学里的对数,这就给了我们这些计算机科学家们，一些启示,即，这种算法更智能，更迅速。

哈佛公开课 - 计算机科学课程节选

The process to control it is intriguing and interesting but the heart of the computer is simply this notion that we build our descriptions, our recipes, on a sequence of primitive instructions.

这个控制它的过程很耐人寻味，很有意思,但是计算机的核心仅仅只是,我们在初始指令序列上，建造描述、方法的一个概念罢了。

麻省理工公开课 - 计算机科学及编程导论课程节选

Construction is a combination of workmanship and choice of materials. Take this computer, if I pull the silicon out, I replace it with gallium arsenide, leave everything else the same.

构造则是技巧和材料的选择,的结合，拿这个电脑为例，如果我将硅取出，替换成砷化镓，其他东西不变。

麻省理工公开课 - 固态化学导论课程节选

You might think that what a computer, what a chess-playing computer does is just this: it calculates every possible branch, every possible game from here on out.

你可能认为,一台电脑,或一台下棋电脑所做的工作就是这样,计算出所有可能的下法,以及与之对应的各种可能的棋局

耶鲁公开课 - 死亡课程节选

So but the diary is a way to get more sophisticated information on individuals for dietary counseling purposes and the like, but it's pretty labor intensive and then it requires either a computer to analyze the diet or some human being who is trained in this to sit down and make sense of the data.

日记这个办法,可获得更加精确的个体信息,用以进行饮食咨询等,但这更像是劳动密集型工作,然后还需要一台电脑,来分析食物数据,有些人学的就是,坐在电脑前弄明白这些数据

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

Nano Rather than use nano on this computer, Vim I'm gonna use a program called Vim, which is just another text editor.

今天我们不用，而是用，另外一个文本编辑器。

哈佛公开课 - 计算机科学课程节选

So this is pretty much a computer version of the whiteboard in the Science Center.

所以这个在科技中心几乎是一个,电脑版本的电子白板。

哈佛公开课 - 计算机科学课程节选

This is now an example of a stored-program computer.

这儿有一个存储程序计算机的例子。

麻省理工公开课 - 计算机科学及编程导论课程节选

Well, we saw the teaser in terms of that animation that suggests this merge sort algorithm when implemented by a computer is absolutely faster.

我们从前面的动画中可以看到,这个归并排序算法在计算机上实现之后,绝对比其他算法更快。

哈佛公开课 - 计算机科学课程节选

How many of you have heard the term used before? How may have you heard the term used before in terms of programming languages? Great. For the rest you, don't sweat it. This is a highfalutin term that computer scientists use to try and make them look like they're smarter than they really are.

这里就要引入递归的概念了,你们中有多少人以前听过这个词？,你们中有多少人在编程语言中,用过这个词？,很好，剩下的同学也不要担心,这是电脑科学家们用来让自己,显得更聪明的夸张词汇。

麻省理工公开课 - 计算机科学及编程导论课程节选

This is a very important mission and so there is a computer program named Hal that helps run the ship and takes a lot of the burdens off of the part of the human astronauts who are on the ship.

这是一项非常重要的任务,因此,一个被命名为哈尔的计算机程序,被安排协助飞船的运行,减轻飞船上,人类宇航员的负担

耶鲁公开课 - 死亡课程节选

Well partly this is just for fun-- this is what computer people sometimes do, intentionally or unintentionally but as also will see a really nice way to culminate the semester and frankly carve out a 10 hour block where you can bite off your final project's implementation surrounded by friends and the course's staff.

一部分只是因为好玩-,这是懂电脑的人有时会这么做，不管有没有意义,还有一部分原因是因为,以这种方式达到学期的高潮,并在朋友和这门课程教师的关注下,抽出10小时的时间完成最终的项目安装,是一件多么美妙的事啊。

哈佛公开课 - 计算机科学课程节选

int No. Even though the key word has changed from char to int, the * is the same and the fact that I've got a * there is saying this is a pointer to an int or a pointer to a char pointers are always the same size on a computer.

不，即使即使关键字从char变成了，指针的大小还是一样的,我用*表示这是一个int型指针,而不是char型指针，在同一台机子上,它们的大小是一样的。

哈佛公开课 - 计算机科学课程节选