- Algorithm Analysis and Problem Complexity 19
- Cryptology 19
- Systems and Data Security 14
- Management of Computing and Information Systems 11
- Discrete Mathematics in Computer Science 10
- Computer Communication Networks 9
- Computers and Society 7
- Coding and Information Theory 6
- Operating Systems 3
- Computation by Abstract Devices 2
- Math Applications in Computer Science 2
- Algebra 1
- Algorithms 1
- Applications of Mathematics 1
- Information Systems Applications (incl. Internet) 1
- Symbolic and Algebraic Manipulation 1
- Theory of Computation 1