The VGA connector is ubiquitous. You would be hard pressed to find a monitor without one, especially a few years ago. But have you ever wondered what exactly is going on inside of a graphics card that tells the monitor what to display?
That’s exactly the question YouTube electronics guru Ben Eater asked. In two videos, he builds a graphics card completely out of breadboards and simple IC chips. The entire time he explains what he is doing and what each component does.
In part one, he builds the timer circuit. In the second, a mechanism to store and output each pixel of an image.
Despite having little-to-no understanding of low-level electronics, I found this series really enjoyable and easy to understand. Check it out!