- Cryptology 13
- Systems and Data Security 9
- Computer Communication Networks 8
- Computer Hardware 4
- Data Structures and Information Theory 4
- Management of Computing and Information Systems 4
- Artificial Intelligence 3
- Coding and Information Theory 3
- Computer Systems Organization and Communication Networks 3
- Operating Systems 3
- Software Engineering/Programming and Operating Systems 3
- Circuits and Systems 2
- Communications Engineering, Networks 2
- Computers and Society 2
- Information Systems Applications (incl. Internet) 2
- Special Purpose and Application-Based Systems 2
- Computer Applications 1
- Computer System Implementation 1
- Computing Milieux 1
- Discrete Mathematics in Computer Science 1