A Philips cassette tape is shown in 1965. Lou Ottens, who led the invention of the first cassette tape, has died at 94.

A development of the well-known cassette system of Philips, where a thin tape can be inserted easily. It works with batteries, independently of any power supply and came out on the occasion of the German radio and television exhibition. There are also new stereo cassettes. The recorder shall cost around 200 Mark. (archive photograph 1965). | usage worldwide (Photo by Alfred Assmann/picture alliance via Getty Images)