Engineering Research Associates (ERA) origins can be traced to the classified World War II-era Navy project to break the German secret codes by using electronic data processing. After the war, ERA became a private sector company that did pioneering work in computer development. In 1952, it was purchased by Remington Rand. The records include the correspondence of ERA's founding engineers including William Norris and Arnold Cohen. Also included is business and technical correspondence, legal records, patents, and oral histories.