Bank Refah established its first Data Processing department in early 1970s. The Data Processing department was equipped with a small IBM 370 Mainframe computer, which was mainly used for batch processing of deposit and mortgage accounts. The bank's IT department was later dissolved in 1976 and its staff were moved to the IT division of the Iranian Social Security Organization (ISSO). At the time Electronic Data Systems (EDS) was developing a social security application for ISSO and was also managing ISSO's data center. After the Iranian Revolution in 1978, the agreement with ISSO (and EDS) was terminated. Bank Refah stopped using ISSO data center and reverted to manual processing. All business units and bank branches were instructed to set up paper-based customer and account ledgers.