What is RPG II programming?

RPG II programming refers to using the Report Program Generator II (RPG II) language, which is a high-level programming language developed by IBM in the 1960s for business applications, especially on IBM midrange systems like the System/3. RPG II is known for its simplicity in handling business data processing tasks such as generating reports and managing files. Although considered legacy technology today, it played a significant role in automating business processes and is still maintained in some organizations with older IT infrastructure.