So many good machines: the Amstrad CPC range, a whole slew of Sega consoles, the early MSX stuff and of course the Tatung Einstein. 3 inch disk machines of the world unite!
Not to mention the world of CP/M business machines which was surprisingly large in the UK well into the late 80s, again thanks to Amstrad: https://en.wikipedia.org/wiki/Amstrad_PCW
...also Pacman btw (the original arcade machine), and other 80's arcade machines like Pengo or Bomb Jack (notably Bomb Jack was two Z80 computers duct-taped together, the sound was handled by a separate Z80 board which controlled three AY-3-8910 sound chips).