Data transmission systems 37 Congresses 22 Telecommunication 15 Computer networks 12 Information networks 11 Telemeter 5 Electronic data processing 3 Computer security 2 Data processing 2 Information storage and retrieval systems 2 Local area networks (Computer networks) 2 Remote control 2 Computer architecture 1 Computer network protocols 1 Computer-assisted instruction 1 Data communications 1 Database management 1 Distributed processing 1 Documentation 1 Education 1 Electronic publishing 1 Human-machine systems 1 Information science 1 Information services 1 Integrated circuits 1 Integrated services digital networks 1 Research 1 Switching systems 1 Telecommunication systems 1 Telephone systems 1