The Untold Story of the Invention of the Game Cartridge
fastcompany.com
fastcompany.com
I'm too young to have played these 70s systems, but the quote above reminded me of LCD games I played in the 90s, where the digital world was given depth by printed color backgrounds. Now that I think about it, the games on those little handhelds probably came quite close to what you used to get on the Odyssey and Atari 2600 15 years earlier.