PEARL

PEARL, or Process and experiment automation realtime language, is a computer programming language designed for multitasking and real-time programming.

Being a high-level language, it is fairly cross-platform.

Since 1977, the language has undergone several standardization iterations by the Deutsches Institut für Normung.

The current version is PEARL-90, which was standardized in 1998 as DIN 66253-2.