Nearly a year later on May 5, 1951, the Nimrod computer—created by engineering firm and nascent computer developer Ferranti—was presented at the Festival of Britain, and then showcased for three weeks in October at the Berlin Industrial Show before being dismantled. Using a panel of lights for its display, it was designed exclusively to play the game of Nim; moves were made by players pressing buttons which corresponded with the lights. Nimrod could play either the traditional or "reverse" form of the game. The machine was twelve feet wide, nine feet deep, and five feet tall. It was based on an earlier Nim-playing machine, "Nimatron", designed by Edward Condon and built by Westinghouse Electric in 1940 for display at the New York World's Fair. "Nimatron" had been constructed from electromechanical relays and weighed over a ton. The Nimrod was primarily intended to showcase Ferranti's computer design and programming skills rather than entertain, and was not followed up by any future games. Despite this, most of the onlookers at the Festival of Britain were more interested in playing the game than in the programming and engineering logic behind it.