There was a version of PacMan running on the very early personal computer PERQ of Three Rivers. The PERQ is described in Wikipedia: but the game is not mentioned. When I was with Siemens 1981-82 we had such a PERQ workstation and every one so often somebody of our team dived into the PacMan world... Great fun. The main difference to the commercial arcade game was that PacMan on the PERQ was in black&white, naturally, because that machine had a 768x1024 (yes, portrait format) black and white screen, aka bitmap screen. ☀