Computing is already transforming healthcare; but the possibilities remain endless. Hospitals, entire communities are already networked, and Cloud will increasingly play a role, but there are major (legal) compliance issues with personal data. There is a continuing stream of technology innovations, from robotics to tablets, to mobile phones, and wearable devices. However, software is the key differentiator for technology that quickly becomes commodity. The key consideration is that doctors are drowning in data: what they need is information. To this end, some of main contributors have been: image and signal analysis; and AI and machine learning. Realizing the many opportunities in healthcare requires computing scientists to work in teams with physicists, chemists, and biologists. Relationships between clinicians, researchers, and industry are key.