Practically, I mostly do C# programming, with occasional dabbles in C, C++, Java and Python.
However, I take a keen interest into the more theoretical parts of computer science such as automatons, formal languages and algorithmic analysis.
Q&A for professional and enthusiast programmers
Q&A for programming puzzle enthusiasts and code golfers
Q&A for people studying math at any level and professionals in related fields
Q&A for students, researchers and practitioners of computer science
Q&A for practitioners, researchers, and students in cognitive science, psychology, neuroscience, and psychiatry
Q&A for professional programmers interested in conceptual questions about software development
Q&A for meta-discussion of the Stack Exchange family of Q&A websites
Q&A for active researchers, academics and students of physics
Q&A for musicians, students, and enthusiasts