Steve Jobs -- the mega-genius who co-founded Apple Inc. -- has died. He was 56.
Jobs suffered a number of serious health issues over the last couple of years. In 2004, he announced he had a rare -- but treatable -- form of pancreatic cancer ... and had a tumor successfully removed from his pancreas later that year.
In 2009, Jobs received a liver transplant after announcing his "health-related issues were more complex than I thought."