The terminals can be programmed using the same language: AXEL (similar to BASIC). The same source program can be compiled and downloaded to BARman, BARman Laser or t·BARman . An AXEL source program (filename.ax) must be compiled to produce an executable file for all BARman models (filename.axp). All BARman models are using the same compiler program. The AXEL compiler is available in Windows 9x, NT, 2000 and XP version (ref. SDP350).