The SDC Group originally emerged from the association of Danish savings banks' computer centres. The association was established in 1963 in order to meet the electronic banking needs of Danish savings banks. Then as now, the basic concept was: working together to achieve lower costs for the individual through economies of scale. The first centre under SDC, the Copenhagen centre became operational in 1964. In 1966 another centre was opened in Århus and another in Odense the year after that. At the time it was important for the savings banks and operational centres to be close to one another. As the 1960´s progressed, SDC's market share increased sharply. By the start of the 1970´s - just ten years after being established - virtually all Danish savings banks which needed EDP services had joined SDC.