Data processing 12 Computer network resources 10 Computer networks 9 Computer-assisted instruction 9 Information technology 9 Security measures 9 Computer security 8 Educational technology 8 Software engineering 8 Internet in education 6 Web services 6 Education, Higher 5 Artificial intelligence 4 Education 4 Electronic commerce 4 Encyclopedias 4 Information storage and retrieval systems 4 Management 4 Pattern perception 4 Social aspects 4 Web-based instruction 4 Data mining 3 Design 3 Developing countries 3 Educational innovations 3 Knowledge management 3 Research 3 System analysis 3 Access control 2 Adaptive antennas 2