In your opinion, What is the most used programming language in the world of robotics right now, the one that should be learned and mastered in order to work fine with all other robotics engineers in the world ?!
It should be noted that this list is not exhaustive
Academic language
Pascal, COBOL, LISP, Visual Studio, SQL GUI Tools is made from Delphi, platform of Python, Perl, C and C++.
Industrial Language
ABB has its RAPID programming language. Kuka has KRL (Kuka Robot Language). Comau uses PDL2, Yaskawa uses INFORM and Kawasaki uses AS. Then, Fanuc robots use Karel, Stäubli robots use VAL3 and Universal Robots use URScript, ROS Industrial.