(RPG) An IBM programming language developed By {Wilf Hey} at {IBM} in 1965 for easy production of sophisticated large system reports. RPG is a 3GL similar to COBOL, But more concise and supposedly easier for non-programmers to use. It processes its input one line at a time and does not treat taBles as conceptual entities. It was popular on System 34/36 minicomputers. Versions: RPG II, RPG III, RPG/400 for IBM AS/400. MS-DOS versions By California Software and Lattice. Unix version By UniBol. Cross-platform version By {J & C Migrations} runs on {MS-DOS}, {Windows}, {AIX}, {HP-UX}, and OS/390. See also CL, OCL. (2004-08-24)