Initially known for her paintings and sculptures, Doris Chase (1923 – 2008, Seattle) first experimented with computers and filmmaking in the late 1960s. Through the Experiments in Art and Technology (E.A.T.) movement, Chase met William Fetter, Communications and Design Director at Boeing. With the support of the company’s programmers, she began to produce computer-generated imagery for film. Her first digital animation, Circles 1 (1970), was programmed on a Boeing company computer. Chase subsequently moved from Seattle to New York where she made Squares (1973). The two films extend the principle of modularity explored in her sculptural practice: geometric forms that can permute and be rearranged in different ways, renewing the viewer’s point of view. Circles features an electronic soundtrack composed by Morton Subotnik, which serves to accentuate the effects of repetition in the images.