I stumbled upon these presentation while looking for the sources to an old game that I published in a Compute! magazine article.

 

The presentations are by Joe Decuir, one of the Atari / Amiga designers, and cover:

 * how the VCS, 800, and Comodore Amiga were designed

 * The architecture of the VCS in detail

 * How to develop VCS games

 

 

I had heard some of this information second-hand while working at Atari, but I never saw it written down in one place, or in as much detail. Very nice!

 

Probably the most interesting of the three presentations is the first one, that gives the design rationale behind three generations of console / home computer graphics chips:

 

 

One of his presentations also includes a link to the hardware manual for the Atari VCS's "Television Interface Adapter" chip: