Re: Chapter 3 Complete!

Posted by WBahn on Jan 08, 2023; 4:09am
URL: http://nand2tetris-questions-and-answers-forum.52.s1.nabble.com/Chapter-1-Complete-tp4037022p4037037.html

a1ph4byte wrote

I'm very cognizant of the concept of abstraction, without it, it would be impossible to teach IP network communications. But man, this project brings it to life. Just finished chapter 3. The simplicity of scaling up the RAM chips is truly a beautiful thing.

Doesn't it, though?

Depending on how you implement it, a DFF as about 20 transistors in it. 32 Kwords of RAM has over half a million DFFs in it, so that's over ten million transistors!

And someone physically making a RAM chip builds it up just this way. In steps where each step increases the size of the building block by just a small factor. The beauty of exponential growth at work.