The IBM System/38 was part of the Future Systems Project at IBM, and was developed by Dr.Frank Soltis under the codename “Pacific”. It was released to the public in August, 1979 and featured one of the first relational database management systems using SQL, System R, also developed by the company.
Using a unique 48-bit addressing system, it used the CPF (Control Program Facility) operating system. It was also one of the first mainframe systems to include user based security. It supported RPG II, COBOL, BASIC, and PL/I. It was also capable of storing data anywhere on the disk. It was later replaced by the AS/400.