Audio cassette tape inventor Lou Ottens passes away at 94

Lou Ottens, the Dutch engineer who is credited with the invention of the audio cassette tape, has passed away. He was 94.
Ottens founded the cassettes in the year 1960s, while he was employed with tech giant Philips. Later it led to the invention of the first reel-to-reel walkman in 1963.
He is also known for helping develop the concept of magnetic tape players and the computer discs (CDs)