So actually thinking about how humans interact with machines and how you can optimize your so called user interface or GUI interface is also one of the themes in this particular field.

因此考虑人与机器如何交互动,以及如何优化所谓的用户界面,或者GUI界面就是这个特殊领域的一个主题。

哈佛公开课 - 计算机科学课程节选

I'm gonna call my file hello.c. There's a little bit GUI-- of distraction here but this is because this is not a GUI, CLI a graphical user interface, this is a CLI, command-line interface, which just means there are no windows and icons.

我先给我的文件命名为“hello，c“,你们也许会觉得有点烦，因为不是，图形用户界面，这是，命令行界面，这意味着没有窗口，没有图标。

哈佛公开课 - 计算机科学课程节选