 There was extensive use of IBM punched-card machines for calculations made at Los Alamos during the Manhattan Project for developing the first atomic bombs.During the War, IBM also built the Automatic Sequence Controlled Calculator, also known as the Harvard Mark I for the U.S. Navy – the first large-scale electromechanical calculator in the U.S..In 1933 IBM had acquired the rights to Radiotype, an IBM Electric typewriter attached to a radio transmitter.