CNN | Dutch inventor of the cassette tape, Lou Ottens, dies age 94

(CNN) – Lou Ottens, the Dutch inventor of the cassette tape, has died at the age of 94, his family has confirmed to CNN.

They said the inventor died at his home in Duizel, the Netherlands, on Saturday. His cause of death was not given.

An estimated 100 billion cassette tapes have been sold worldwide, according to Philips, the company he began working for in 1952. Ottens also supervised the team that developed the compact disc (CD).  —read more—