Organiser Programming Language

The Organiser Programming Language (OPL) is a common embedded programming language for portable devices such as PDAs. Source code written in OPL can be compiled for several Psion devices, including the PSION Series 3, Series 5, Series 7, and the PSION WorkAbout.

OPL is a structured programming language. Example:

PROC test:
  print "Test"
  pause 80
ENDP

OPL includes easy access to graphical functions, menus and other GUI elements.