Today we’re going to create memory! Using the basic logic gates we discussed in episode 3 we can build a circuit that stores a single bit of information, and then through some clever scaling (and of course many new levels of abstraction) we’ll show you how we can construct the modern random-access memory, or RAM, found in our computers today. RAM is the working memory of a computer. It holds the information that is being executed by the computer and as such is a crucial component for a computer to operate. Next week we’ll use this RAM, and the ALU we made last episode, to help us construct our CPU - the heart of a computer.

今天我们要创造记忆！使用我们在第三集中讨论的基本逻辑门，我们可以构建一个存储单个bit的电路，然后通过一些巧妙的缩放（当然还有许多新的抽象级别），我们将向您展示如何构建在我们今天的计算机中随处可见的随机存取存储器(RAM)。RAM是计算机的工作存储器。它保存着计算机正在执行的信息，因此是计算机运行的关键部件。下周我们将使用这个RAM和上一集制作的ALU来帮助我们构建CPU——计算机的心脏。