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Invention of the Image Scanner; Creation of the First Digital Image (1957)

In 1957 Russell A. Kirsch and a team at the U.S. National Bureau of Standards, using the SEAC computer, built the first image scanner—a drum scanner. Using that device they took the first digital photograph: 

"The first image ever scanned on this machine was a 5 cm square photograph of Kirsch's then-three-month-old son, Walden. The black and white image had a resolution of 176 pixels on a side" (Wikipedia article on Image Scanner, accessed 04-01-2009).