Neat, the Sinclair ZX80/81 had also largely software based video generation, that on the ZX80 had the unfortunate side effect of the screen flickering while typ

Neat, the Sinclair ZX80/81 had also largely software based video generation, that on the ZX80 had the unfortunate side effect of the screen flickering while typing since both reading input and generating the video signal was too much for the poor machine. What a long way we have come...