- Computer Communication Networks 36
- Cryptology 32
- Systems and Data Security 20
- Algorithm Analysis and Problem Complexity 18
- Management of Computing and Information Systems 18
- Coding and Information Theory 9
- Computers and Society 9
- Discrete Mathematics in Computer Science 8
- Operating Systems 7
- Data Structures and Information Theory 6
- Special Purpose and Application-Based Systems 4
- Computer Applications 3
- Multimedia Information Systems 3
- Combinatorics 2
- Communications Engineering, Networks 2
- Computer System Implementation 2
- Information Systems Applications (incl. Internet) 2
- Mathematical Logic and Formal Languages 2
- Programming Techniques 2
- Theory of Computation 2