Now that we can build and run our new kernel, it's time to make it actually do someting! We'll get started by printing stuff to the screen. PC-compatible computers implement a graphics API called "VGA", or "video graphics array." You'll come to learn quite soon why that's the name!
First, we'll write out the simplest "hello world" possible. Then, we'll dig a bit deeper into exactly what we did. Finally, we'll refactor our code into an actual, nice-to-use library.