ashtray (you gotta love the 50’s). O – The guidance computer for a 1962 Minuteman I intercontinental ballistic (nuclear) missile. P – The MIT 1965 Apollo spacecraft guidance computer. Q – University of Tokyo’s Biper-4 bipedal robotic legs, 1983 . R – The 1976 Cray-1 supercomputer. S – The 1985 Cray-2