Passé Pixels

The Basics: A pixel is a single dot on the screen. It is the basis of all other graphics primitives. This initial article starts by explaining how graphics works in a global scope, and finally culiminates into a program with working graphics routines.
A Faster Pixel: The second article in the series focuses on methods of speeding up the setpixel routine. It covers some important general optimizations that can be used for a number of different applications, but it also covers implementation specific methods of speeding the routine up.