黑客攻击过去通常指怪异的大学生在卧室里敲着键盘使用电脑来骚扰他们的长辈。

Hacking used to be about geeky college kids tapping away in their bedrooms to annoy their elders.

youdao

不同的键盘使用不同的击键和导航选项。

Different keyboards make use of different keystrokes and navigation options.

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在个人电脑领域，如今可见装有两个显示器的手提电脑，通常其底部屏幕在必要的时候可以作为虚拟键盘使用。

On the PC front, we've seen concept laptops with two displays for some time now, usually with the idea that the bottom screen can be used as a virtual keyboard when needed.

youdao

Now get int *y so now I'll use the board for things I can't really draw very well with the keyboard so what does the memory of my program look like at the moment?

现在，=，int，*y，现在我使用黑板,我用键盘画的不是很好,那么此刻，我程序中的内存看起来像什么？

哈佛公开课 - 计算机科学课程节选