Machine theory Formal languages 41 Computational complexity 37 Computer science 15 Mathematics 15 Mathematical models 13 Computer programming 10 Computer algorithms 8 Computable functions 7 Data processing 6 Logic design 6 Algorithms 5 Artificial intelligence 5 Labor productivity 5 Mechanical engineering 5 Algebra 4 Computer Science 4 Computer networks 4 Computer viruses 4 Digital electronics 4 LOTOS (Computer program language) 4 Parallel processing (Electronic computers) 4 Programming languages (Electronic computers) 4 Robotics 4 Security measures 4 Simulated annealing (mathematics) 4 Cluster analysis 3 Computer software 3 Cryptography 3 Development 3