The Hammond Organ is the most famous electromechanic instrument we know. It is an electric organ designed to give a low cost alternative to church pipe organs.
Many international users have keyboards with the U.S. layout, and are accustomed to typing accented characters with the key sequences of the Windows "U.S. - International" keyboard layout. They often don't wish to get used to the Mac's option-key sequence
R. Zafarani, и H. Liu. Proceedings of the 19th ACM SIGKDD International Conference on Knowledge Discovery and Data Mining, стр. 41--49. New York, NY, USA, ACM, (2013)