computer architecture 16 Microbiology 15 Computer architecture 14 History and criticism 13 History 12 Insects (Entomology) 12 Mathematics 12 Sociology 11 Education 9 English literature 9 Digital integrated circuits 8 Electronic digital computers 8 Human behavior 8 Logic circuits 8 Logic design 8 Philosophy 7 Criticism and interpretation 6 European literature 6 India 6 Social Sciences 6 Biochemistry 5 Chemistry 5 Computer science 5 Criticism 5 Economics 5 Insects 5 Language 5 Learning 5 Psychology, Comparative 5 Realism in literature 5