当到内存的程序加载时，它是分成称为页件。

When a program loads into the memory, it is broken up into pieces called pages.

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在Unix中您将看到可执行任务的概念，一个进程通常是装入内存的程序。

In Unix you'll see the concept of an executable task, a process that is usually a program loaded into memory.

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下面让我们开始介绍这个样例程序，首先是不使用共享内存的程序。

Let's start with the sample program, the one that doesn't use Shared memory.

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Why not write the program in a way where you figure out dynamically when the program is run how much memory you need rather than hard coding in two with or within that constant.

为什么不写一个可以动态的方式写那个程序,程序可以动态分配内存,而不是用常量硬编码两个值。

哈佛公开课 - 计算机科学课程节选

All right so it has to live in RAM as opposed to the hard drive because otherwise things would be terribly slow as you know so it's much better if your programs live while they're running in RAM and they end up in what's called the tech segment.

好的，它存在内存中，而不是硬盘中,因为，否则程序会非常的缓慢,程序在内存中运行会好得多,它们在技术段,的地方结束。

哈佛公开课 - 计算机科学课程节选

You can touch almost any part of memory in the computer systems that you want with your program, but do you want to?

通过你的程序，你可以触及到计算机系统,内存的任意部分，但是那是你想要的吗？

哈佛公开课 - 计算机科学课程节选