Little conveniences cost a lot. Just having a framebuffer with page flipping for seamlessly redrawing the screen costs 64MB of memory at 4K resolution. People

Little conveniences cost a lot. Just having a framebuffer with page flipping for seamlessly redrawing the screen costs 64MB of memory at 4K resolution. People did real work and gaming on computers with a small fraction of that. Early on in the history of computing the framebuffer was discussed as a theoretical construct, like "what could we do with this concept if we had the memory to implement it".