The Dutch engineer credited with inventing the audio cassette has died. Lou Ottens was 94. As head of product development for Philips in 1960, he led a team that developed the initial portable tape recorder; he then introduced the first cassette tape at a Berlin electronics fair three years later. The slogan back then: "Smaller than a pack of cigarettes!" Primis Player Placeholder This portable tape quickly overtook cumbersome reel-to-reel recording methods that had long been the standard. Home decks gave way to boomboxes and in-dash car models – bringing music to the masses. That was, in fact, the goal:...