https://apnews.com/db92e0b593f5156da970c0a1e9f90944

PORTLAND, Ore. (AP) — Russell Kirsch, a computer scientist credited with inventing the pixel and scanning the world’s first digital photograph, died Aug. 11 at his home in Portland, Oregon, The Oregonian reported. He was 91.

Pixels, the digital dots used to display photos, video and more on phone and computer screens, weren't an obvious innovation in 1957, when Kirsch created a small, 2-by-2-inch black-and-white digital image of his son, Walden, as an infant. That was among the first images ever scanned into a computer, using a device created by his research team at the U.S. National Bureau of Standards (now the National Institutes of Science and Technology).