The Modern RPG IV Language

There has been much confusion in the OS/400 world regarding the proper name of the RPG programming language. This is primarily due to many IBM support personnel as well as the trade press mistakenly reporting the name of RPG III as RPG/400. There is not now, nor has there ever been, a programming language named "RPG/400."

The current AS/400 and iSeries RPG compile package offered by the IBM Corporation is named ILE RPG/400. This package contains several compilers for many different RPG languages, including:

• System/36-compatible RPG II.

• System/38-compatible RPG III.

• AS/400 and iSeries RPG III. There is no "RPG/400" language per se (only AS/400 RPG III).

• AS/400 and iSeries RPG IV. This compiler targets the native integrated programming language environment (ILE). There is no "ILE RPG" language, only an ILE-targeted RPG IV compiler.