- Cryptology 69
- Systems and Data Security 45
- Algorithm Analysis and Problem Complexity 39
- Computer Communication Networks 37
- Coding and Information Theory 34
- Management of Computing and Information Systems 31
- Discrete Mathematics in Computer Science 21
- Computers and Society 14
- Data Structures and Information Theory 14
- Operating Systems 8
- Theory of Computation 8
- Computer Systems Organization and Communication Networks 6
- Programming Techniques 6
- Software Engineering/Programming and Operating Systems 6
- Symbolic and Algebraic Manipulation 6
- Algorithms 5
- Special Purpose and Application-Based Systems 5
- Combinatorics 4
- Mathematics of Computing 4
- Communications Engineering, Networks 3