The person who developed the world's first compact disk, Norio Ohga, died at the age of 81. He was the person who was responsible for transforming Sony from a transistor-radio and tape-recorder manufacturer into what it is now, a consumer-electronics and content giant which is not only in music but also movies and video games.
Ohga continued to rule Sony as the president for 13 years in row, starting from 1982. This was the same year when the company went into commercialization of CD. Not only that, he also led into the acquisition of Sony into the Columbia Pictures in 1989. Considering the size of the deal, at that time it was the biggest one done by any Japanese company.
Ogha is the one who signed in for creating the company's PlayStation unit in the early 1990s. At present, it is also the biggest business unit of the company. After his departure, said the current CEO of Sony, Howard Stringer that it is no exaggeration when one says that Sony's evolution beyond audio and video is the result of Ohga-san's foresight and vision.