Documentary about the history and various uses of computers. CU animated computer art by John Whitney; montage of still photos showing uses of computers; multiple shots inside NASA control room; CU child counting on fingers, cave woman costume; the child moves sticks and rocks to count higher; CU of abacus, girl uses it; boy, in role of Pascal, writing; CU on box representing adding machine; boy enters, in role of Babbage, points to designed adding machine; boy, in role of Hollerith, demonstrating punch card invention; CU computer processing punch cards