Sinclair QL

Sinclair's business machine, and one of the great might-have-beens. A 68008 with proper multitasking, a genuinely advanced BASIC, and Psion's office software — announced before it worked, shipped with a dongle hanging out of the back, and hobbled by the Microdrive tape loops nobody could make reliable. Linus Torvalds learned on one. It killed Sinclair's credibility in business and is now a serious collector's machine.