In December 1975, Kodak's engineer Steve Sasson, a photographic product maker, discovered digital camera.
Like toaster machine in size, this machine could make 100x100 resolution or 0.01 megapixel sized black and white image. After taking photos, it was stored in the cassette.
It takes 23 seconds to save a picture in the cassette size cassette. It was built with a special computer and tape reader camera to see the pictures. It took 23 seconds to see it from the tape.