The VideoBrain Family Computer is an obscure, cartridge-based home computer that apparently failed to set the world on fire. It was released in 1977 and was a rather powerful machine for the time, what with its colour graphics, built-in software, F8 CPU and sound-generator. You can find out more about VideoBrain here and here. You can also bid on a rarely seen VideoBrain system on eBay. It's tested, working, and comes complete with powerpack and six games. Seller ships worldwide.