https://www.youtube.com/watch?v=XTRkZ-SKs5g https://www.youtube.com/watch?v=XTRkZ-SKs5g That's basically the CPU running at 1.024 Mhz. The video hardware is du

https://www.youtube.com/watch?v=XTRkZ-SKs5g https://www.youtube.com/watch?v=XTRkZ-SKs5g That's basically the CPU running at 1.024 Mhz. The video hardware is dumb, runs independent of the CPU, and just scans a region of memory to send pixels to the display. All software pushing pixels otherwise. You are not wrong with the NES, C64 and other machines using a graphics chip with sprites and other hardware features to assist in various ways. But, quite a lot happened on the CPU. BTW, this game is done on a 1Mhz 6809, all software pushing pixels. https://www.youtube.com/watch?v=wAKxa5C9jHY https://www.youtube.com/watch?v=wAKxa5C9jHY (I would skip out to the middle somewhere in that video to get a sense of what is being done) On that game specifically, it's a single frame buffer. Screen divided into two halves, each drawn while the display is delivering the other to the player.