PL/I preprocessor

PL/I Preprocessor is a special program that takes the instructions you type into your computer and turns them into instructions that your computer can understand and execute. It does this by taking the instructions you type (called source code), breaking them down into smaller pieces, and then rearranging those pieces in a way that your computer can understand. For example, if you tell your computer to do something like "make a new folder," the PL/I Preprocessor would take that instruction and translate it into a computer language like Java or C. The PL/I Preprocessor makes it easier for you to tell your computer what to do - it helps you tell it things in the right language.