YAKIMA, Wash. -- West Valley-based E/Step Software Inc. will host its annual APL computer programming language for high school students starting next month.

What does programming language actually mean? Find out inside PCMag's comprehensive tech and computer-related encyclopedia.

APL, or A Programming Language, is another programming language. One of the most striking aspects of APL is that it uses a non-standard character set for some of its operators and coding.