variant of pics, 1930 (see pic).
by 1884 as a colloquial shortening of picture (n.). Short for motion picture by 1936. Even more colloquial piccy is recorded from 1889.
"small, square single-colored display elements that comprise an image," 1969, coined to describe the photographic elements of a television image, from pix + first syllable of element.
updated on November 22, 2012