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The company name and its product names also changed over time. Engineering Research Associates (ERA) of Saint Paul was acquired by Remington Rand Corporation. Remington Rand also acquired the Eckert–Mauchly Computer Corporation of Philadelphia which was then building the UNIVAC computer. The two were combined into the UNIVAC division of Remington Rand under the direction of William Norris. William Norris had been one of the founders of ERA and later left Remington Rand to start Control Data Corporation. The UNIVAC division of Remington Rand Corporation became the UNIVAC division of Sperry Rand Corporation after Remington Rand merged with Sperry Corporation. In the 1970s Sperry Rand began a corporate identity program that changed its name to Sperry Corporation and all the division names to begin with Sperry, so the computer systems division became Sperry UNIVAC. Later the division names were dropped and everything simply became Sperry.