As the first of many Eames Office-designed exhibitions for IBM, A Computer Perspective charted the development of the computer from 1890 to 1950. This exhibition included vintage and modern machines and a densely-layered six-panel “History Wall” incorporating computer artifacts, documents, and photographs. A Computer Perspective included a multiscreen slide show of 500 images called “AV Rack,” highlighting the newest computer applications at the time. It also featured an interactive computer game of “Twenty Questions,” in which visitors tried to guess which subject (animal, vegetable, or mineral) the computer had selected. A Computer Perspective opened at the IBM Corporate Exhibit Center in 1971 and ran through 1975.